./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF --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 e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:27:18,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:27:18,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:27:18,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:27:18,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:27:18,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:27:18,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:27:18,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:27:18,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:27:18,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:27:18,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:27:18,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:27:18,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:27:18,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:27:18,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:27:18,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:27:18,580 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:27:18,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:27:18,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:27:18,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:27:18,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:27:18,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:27:18,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:27:18,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:27:18,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:27:18,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:27:18,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:27:18,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:27:18,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:27:18,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:27:18,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:27:18,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:27:18,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:27:18,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:27:18,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:27:18,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:27:18,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:27:18,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:27:18,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:27:18,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:27:18,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:27:18,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:27:18,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:27:18,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:27:18,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:27:18,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:27:18,699 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:27:18,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:27:18,699 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:27:18,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:27:18,700 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:27:18,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:27:18,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:27:18,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:27:18,702 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:27:18,702 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:27:18,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:27:18,703 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:27:18,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:27:18,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:27:18,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:27:18,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:27:18,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:27:18,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:27:18,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:27:18,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:27:18,706 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:27:18,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:27:18,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:27:18,707 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:27:18,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:27:18,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:27:18,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:27:18,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:18,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:27:18,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:27:18,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:27:18,711 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:27:18,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:27:18,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:27:18,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:27:18,712 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:27:18,712 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_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb2ea6991951b6a9c5c1df0de2ac5ff84f75971959d591fa5f258025f94929 [2021-11-12 23:27:19,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:27:19,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:27:19,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:27:19,113 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:27:19,114 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:27:19,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-11-12 23:27:19,201 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/data/7356961c6/298c34a814b84f99a02532ecf9f817dc/FLAGa012dff78 [2021-11-12 23:27:19,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:27:19,718 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2021-11-12 23:27:19,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/data/7356961c6/298c34a814b84f99a02532ecf9f817dc/FLAGa012dff78 [2021-11-12 23:27:20,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/data/7356961c6/298c34a814b84f99a02532ecf9f817dc [2021-11-12 23:27:20,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:27:20,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:27:20,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:20,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:27:20,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:27:20,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1984bd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20, skipping insertion in model container [2021-11-12 23:27:20,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:27:20,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:27:20,346 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_36adf158-baeb-42ed-9b37-d1a8cddef9cf/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-11-12 23:27:20,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:20,365 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:27:20,414 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_36adf158-baeb-42ed-9b37-d1a8cddef9cf/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c[3544,3557] [2021-11-12 23:27:20,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:27:20,451 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:27:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20 WrapperNode [2021-11-12 23:27:20,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:27:20,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:20,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:27:20,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:27:20,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:27:20,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:27:20,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:27:20,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:27:20,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:27:20,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:27:20,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:27:20,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:27:20,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (1/1) ... [2021-11-12 23:27:20,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:27:20,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:27:20,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:27:20,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:27:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 23:27:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 23:27:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 23:27:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 23:27:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 23:27:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 23:27:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:27:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:27:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 23:27:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:27:20,695 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:27:22,095 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:27:22,095 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:27:22,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:27:22 BoogieIcfgContainer [2021-11-12 23:27:22,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:27:22,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:27:22,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:27:22,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:27:22,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:27:20" (1/3) ... [2021-11-12 23:27:22,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b95025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:27:22, skipping insertion in model container [2021-11-12 23:27:22,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:27:20" (2/3) ... [2021-11-12 23:27:22,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b95025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:27:22, skipping insertion in model container [2021-11-12 23:27:22,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:27:22" (3/3) ... [2021-11-12 23:27:22,109 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2021-11-12 23:27:22,115 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:27:22,116 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:27:22,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:27:22,116 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:27:22,164 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,165 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,166 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,167 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,168 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,168 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,168 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,170 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,171 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,172 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,173 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,174 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,176 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,177 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,177 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,178 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,179 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,180 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,181 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,183 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,184 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,185 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,186 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,190 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,191 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,192 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,192 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,192 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,192 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,192 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,193 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,193 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,193 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,197 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,198 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,198 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,198 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,198 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,200 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,201 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,201 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,201 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,204 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,204 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,205 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,205 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,205 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,205 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite23#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ret22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,212 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,215 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:27:22,225 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 23:27:22,277 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:27:22,286 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 [2021-11-12 23:27:22,287 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 23:27:22,310 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:27:22,326 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 133 transitions, 290 flow [2021-11-12 23:27:22,330 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 133 transitions, 290 flow [2021-11-12 23:27:22,332 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 133 transitions, 290 flow [2021-11-12 23:27:22,455 INFO L129 PetriNetUnfolder]: 2/130 cut-off events. [2021-11-12 23:27:22,455 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 23:27:22,458 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-11-12 23:27:22,465 INFO L116 LiptonReduction]: Number of co-enabled transitions 270 [2021-11-12 23:27:34,865 INFO L131 LiptonReduction]: Checked pairs total: 467 [2021-11-12 23:27:34,866 INFO L133 LiptonReduction]: Total number of compositions: 121 [2021-11-12 23:27:34,889 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-11-12 23:27:34,905 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-11-12 23:27:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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) [2021-11-12 23:27:34,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:34,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:34,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:34,917 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:34,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1339102741, now seen corresponding path program 1 times [2021-11-12 23:27:34,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:34,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738239305] [2021-11-12 23:27:34,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:34,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:36,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:37,295 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:37,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738239305] [2021-11-12 23:27:37,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738239305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:37,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:37,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:37,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743412405] [2021-11-12 23:27:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:37,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:37,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:37,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:37,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:37,334 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:37,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:37,878 INFO L93 Difference]: Finished difference Result 67 states and 106 transitions. [2021-11-12 23:27:37,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:37,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:37,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:37,890 INFO L225 Difference]: With dead ends: 67 [2021-11-12 23:27:37,890 INFO L226 Difference]: Without dead ends: 52 [2021-11-12 23:27:37,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:27:37,896 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 30 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 217.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.32ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 249.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:37,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 0 Invalid, 87 Unknown, 0 Unchecked, 3.32ms Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 249.38ms Time] [2021-11-12 23:27:37,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-12 23:27:37,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2021-11-12 23:27:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 43 states have internal predecessors, (74), 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) [2021-11-12 23:27:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 74 transitions. [2021-11-12 23:27:37,939 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 74 transitions. Word has length 16 [2021-11-12 23:27:37,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:37,939 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 74 transitions. [2021-11-12 23:27:37,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:37,940 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 74 transitions. [2021-11-12 23:27:37,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:37,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:37,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:37,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:27:37,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:37,943 INFO L85 PathProgramCache]: Analyzing trace with hash -508029981, now seen corresponding path program 2 times [2021-11-12 23:27:37,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:37,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115640740] [2021-11-12 23:27:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:37,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:39,677 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:39,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115640740] [2021-11-12 23:27:39,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115640740] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:39,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:39,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:39,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640148732] [2021-11-12 23:27:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:39,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:39,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:39,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:39,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:39,681 INFO L87 Difference]: Start difference. First operand 44 states and 74 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:40,195 INFO L93 Difference]: Finished difference Result 63 states and 94 transitions. [2021-11-12 23:27:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:40,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:40,197 INFO L225 Difference]: With dead ends: 63 [2021-11-12 23:27:40,197 INFO L226 Difference]: Without dead ends: 44 [2021-11-12 23:27:40,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:27:40,200 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 29 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.10ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 211.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:40,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 0 Invalid, 84 Unknown, 0 Unchecked, 2.10ms Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 211.30ms Time] [2021-11-12 23:27:40,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-12 23:27:40,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 36. [2021-11-12 23:27:40,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-11-12 23:27:40,209 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-11-12 23:27:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:40,209 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-11-12 23:27:40,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:40,210 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-11-12 23:27:40,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:40,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:40,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:40,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 23:27:40,211 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:40,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:40,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1915341441, now seen corresponding path program 3 times [2021-11-12 23:27:40,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:40,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796668635] [2021-11-12 23:27:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:40,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:41,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:41,613 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:41,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796668635] [2021-11-12 23:27:41,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796668635] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:41,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:41,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:41,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979243980] [2021-11-12 23:27:41,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:41,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:41,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:41,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:41,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:41,615 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:42,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:42,173 INFO L93 Difference]: Finished difference Result 51 states and 70 transitions. [2021-11-12 23:27:42,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:42,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:42,175 INFO L225 Difference]: With dead ends: 51 [2021-11-12 23:27:42,175 INFO L226 Difference]: Without dead ends: 36 [2021-11-12 23:27:42,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:27:42,177 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 33 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 209.69ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:42,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 209.69ms Time] [2021-11-12 23:27:42,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-12 23:27:42,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-11-12 23:27:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 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) [2021-11-12 23:27:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2021-11-12 23:27:42,187 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 16 [2021-11-12 23:27:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:42,187 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2021-11-12 23:27:42,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2021-11-12 23:27:42,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:42,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:42,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:42,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 23:27:42,191 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:42,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:42,191 INFO L85 PathProgramCache]: Analyzing trace with hash -694502733, now seen corresponding path program 4 times [2021-11-12 23:27:42,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:42,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790707144] [2021-11-12 23:27:42,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:42,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:44,109 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:44,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790707144] [2021-11-12 23:27:44,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790707144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:44,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:44,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:44,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140368456] [2021-11-12 23:27:44,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:44,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:44,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:44,115 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:44,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:44,907 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-11-12 23:27:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:44,909 INFO L225 Difference]: With dead ends: 37 [2021-11-12 23:27:44,909 INFO L226 Difference]: Without dead ends: 24 [2021-11-12 23:27:44,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:27:44,910 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.89ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.67ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:44,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 70 Unknown, 0 Unchecked, 1.89ms Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 202.67ms Time] [2021-11-12 23:27:44,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-12 23:27:44,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-12 23:27:44,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 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) [2021-11-12 23:27:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-12 23:27:44,914 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2021-11-12 23:27:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:44,915 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-12 23:27:44,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:44,915 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-11-12 23:27:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:44,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:44,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:44,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 23:27:44,919 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:44,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:44,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1383045429, now seen corresponding path program 5 times [2021-11-12 23:27:44,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:44,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498949540] [2021-11-12 23:27:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:44,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:45,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:46,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:46,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498949540] [2021-11-12 23:27:46,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498949540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:46,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:46,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:46,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925935104] [2021-11-12 23:27:46,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:46,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:46,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:46,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:46,191 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:46,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:46,781 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-11-12 23:27:46,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:46,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:46,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:46,782 INFO L225 Difference]: With dead ends: 31 [2021-11-12 23:27:46,782 INFO L226 Difference]: Without dead ends: 22 [2021-11-12 23:27:46,783 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:27:46,784 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 31 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.37ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:46,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 0 Invalid, 55 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 162.37ms Time] [2021-11-12 23:27:46,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-12 23:27:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-12 23:27:46,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:27:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-11-12 23:27:46,790 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-11-12 23:27:46,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:46,790 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-11-12 23:27:46,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:46,791 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-12 23:27:46,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 23:27:46,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:46,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:27:46,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 23:27:46,792 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:27:46,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:46,793 INFO L85 PathProgramCache]: Analyzing trace with hash -600855865, now seen corresponding path program 6 times [2021-11-12 23:27:46,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:27:46,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63450156] [2021-11-12 23:27:46,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:46,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:27:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:27:48,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 23:27:48,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63450156] [2021-11-12 23:27:48,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63450156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:48,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:48,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 23:27:48,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68079173] [2021-11-12 23:27:48,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:48,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:48,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 23:27:48,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:48,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:48,051 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:48,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:48,436 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-11-12 23:27:48,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:27:48,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 23:27:48,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:48,437 INFO L225 Difference]: With dead ends: 21 [2021-11-12 23:27:48,437 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:27:48,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:27:48,439 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.83ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:48,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.59ms Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 102.83ms Time] [2021-11-12 23:27:48,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:27:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:27:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-12 23:27:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:27:48,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-11-12 23:27:48,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:48,441 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:27:48,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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) [2021-11-12 23:27:48,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:27:48,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:27:48,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-12 23:27:48,446 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-12 23:27:48,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-12 23:27:48,447 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-12 23:27:48,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 23:27:48,449 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2021-11-12 23:27:48,455 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 23:27:48,456 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:27:48,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:27:48 BasicIcfg [2021-11-12 23:27:48,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:27:48,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:27:48,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:27:48,463 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:27:48,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:27:22" (3/4) ... [2021-11-12 23:27:48,467 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:27:48,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-12 23:27:48,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-12 23:27:48,474 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-12 23:27:48,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-12 23:27:48,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-12 23:27:48,483 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:27:48,484 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:27:48,550 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:27:48,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:27:48,551 INFO L158 Benchmark]: Toolchain (without parser) took 28481.99ms. Allocated memory was 86.0MB in the beginning and 293.6MB in the end (delta: 207.6MB). Free memory was 47.0MB in the beginning and 178.8MB in the end (delta: -131.8MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,552 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:27:48,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.99ms. Allocated memory is still 86.0MB. Free memory was 46.8MB in the beginning and 61.2MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,553 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.74ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,561 INFO L158 Benchmark]: Boogie Preprocessor took 43.58ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,561 INFO L158 Benchmark]: RCFGBuilder took 1536.62ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 69.0MB in the end (delta: -12.9MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,562 INFO L158 Benchmark]: TraceAbstraction took 26360.98ms. Allocated memory was 109.1MB in the beginning and 293.6MB in the end (delta: 184.5MB). Free memory was 69.0MB in the beginning and 183.0MB in the end (delta: -114.0MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,563 INFO L158 Benchmark]: Witness Printer took 88.41ms. Allocated memory is still 293.6MB. Free memory was 183.0MB in the beginning and 178.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-12 23:27:48,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 86.0MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.99ms. Allocated memory is still 86.0MB. Free memory was 46.8MB in the beginning and 61.2MB in the end (delta: -14.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.74ms. Allocated memory is still 86.0MB. Free memory was 61.0MB in the beginning and 58.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.58ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 56.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1536.62ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 56.1MB in the beginning and 69.0MB in the end (delta: -12.9MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * TraceAbstraction took 26360.98ms. Allocated memory was 109.1MB in the beginning and 293.6MB in the end (delta: 184.5MB). Free memory was 69.0MB in the beginning and 183.0MB in the end (delta: -114.0MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. * Witness Printer took 88.41ms. Allocated memory is still 293.6MB. Free memory was 183.0MB in the beginning and 178.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.5s, 141 PlacesBefore, 30 PlacesAfterwards, 133 TransitionsBefore, 20 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 8 FixpointIterations, 95 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 121 TotalNumberOfCompositions, 467 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 467, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 206, positive: 206, positive conditional: 0, positive unconditional: 206, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 206, positive: 206, positive conditional: 0, positive unconditional: 206, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 467, positive: 261, positive conditional: 0, positive unconditional: 261, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 206, unknown conditional: 0, unknown unconditional: 206] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 101]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 26.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.6s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 1138.26ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 178 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 966.28ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 179 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 411 IncrementalHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 411 mSolverCounterSat, 10.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 4971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-12 23:27:48,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36adf158-baeb-42ed-9b37-d1a8cddef9cf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE