./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs --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 f621ab4908749e263e6fb16e731498fd137a7d6c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:09:05,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:09:05,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:09:05,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:09:05,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:09:05,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:09:05,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:09:05,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:09:05,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:09:05,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:09:05,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:09:05,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:09:05,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:09:05,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:09:05,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:09:05,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:09:05,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:09:05,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:09:05,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:09:05,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:09:05,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:09:05,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:09:05,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:09:05,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:09:05,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:09:05,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:09:05,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:09:05,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:09:05,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:09:05,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:09:05,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:09:05,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:09:05,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:09:05,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:09:05,641 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:09:05,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:09:05,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:09:05,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:09:05,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:09:05,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:09:05,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:09:05,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:09:05,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:09:05,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:09:05,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:09:05,700 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:09:05,700 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:09:05,701 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:09:05,701 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:09:05,701 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:09:05,701 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:09:05,701 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:09:05,702 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:09:05,703 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:09:05,703 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:09:05,703 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:09:05,703 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:09:05,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:09:05,704 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:09:05,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:09:05,705 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:09:05,706 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:09:05,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:09:05,706 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:09:05,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:09:05,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:09:05,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:09:05,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:09:05,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:09:05,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:09:05,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:09:05,709 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:09:05,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:09:05,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:09:05,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:09:05,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:09:05,710 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_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f621ab4908749e263e6fb16e731498fd137a7d6c [2021-10-16 03:09:06,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:09:06,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:09:06,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:09:06,031 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:09:06,032 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:09:06,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-10-16 03:09:06,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/data/33f8187e3/f81106f1baeb426288fb23af6149f398/FLAGaac520356 [2021-10-16 03:09:06,748 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:09:06,749 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-10-16 03:09:06,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/data/33f8187e3/f81106f1baeb426288fb23af6149f398/FLAGaac520356 [2021-10-16 03:09:07,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/data/33f8187e3/f81106f1baeb426288fb23af6149f398 [2021-10-16 03:09:07,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:09:07,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:09:07,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:09:07,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:09:07,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:09:07,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580e8cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07, skipping insertion in model container [2021-10-16 03:09:07,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:09:07,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:09:07,465 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_4999eacd-500b-456f-8f5b-581df25f5676/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c[14700,14713] [2021-10-16 03:09:07,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:09:07,488 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:09:07,599 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_4999eacd-500b-456f-8f5b-581df25f5676/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c[14700,14713] [2021-10-16 03:09:07,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:09:07,622 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:09:07,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07 WrapperNode [2021-10-16 03:09:07,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:09:07,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:09:07,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:09:07,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:09:07,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:09:07,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:09:07,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:09:07,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:09:07,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:09:07,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:09:07,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:09:07,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:09:07,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (1/1) ... [2021-10-16 03:09:07,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:09:07,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:09:07,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:09:07,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:09:07,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:09:07,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:09:07,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:09:07,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:09:09,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:09:09,791 INFO L299 CfgBuilder]: Removed 123 assume(true) statements. [2021-10-16 03:09:09,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:09:09 BoogieIcfgContainer [2021-10-16 03:09:09,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:09:09,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:09:09,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:09:09,801 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:09:09,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:09:07" (1/3) ... [2021-10-16 03:09:09,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160431a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:09:09, skipping insertion in model container [2021-10-16 03:09:09,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:09:07" (2/3) ... [2021-10-16 03:09:09,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160431a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:09:09, skipping insertion in model container [2021-10-16 03:09:09,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:09:09" (3/3) ... [2021-10-16 03:09:09,804 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_ActiveStandby.1.ufo.BOUNDED-10.pals.c [2021-10-16 03:09:09,810 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:09:09,810 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-10-16 03:09:09,862 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:09:09,868 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:09:09,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-10-16 03:09:09,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 238 states, 214 states have (on average 1.7242990654205608) internal successors, (369), 237 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:09:09,901 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:09,902 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:09,902 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:09,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:09,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1056410761, now seen corresponding path program 1 times [2021-10-16 03:09:09,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:09,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287700301] [2021-10-16 03:09:09,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:09,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:10,323 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:10,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287700301] [2021-10-16 03:09:10,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287700301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:10,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:10,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:10,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180750913] [2021-10-16 03:09:10,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:10,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:10,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:10,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:10,357 INFO L87 Difference]: Start difference. First operand has 238 states, 214 states have (on average 1.7242990654205608) internal successors, (369), 237 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:10,484 INFO L93 Difference]: Finished difference Result 477 states and 740 transitions. [2021-10-16 03:09:10,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:10,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-10-16 03:09:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:10,503 INFO L225 Difference]: With dead ends: 477 [2021-10-16 03:09:10,504 INFO L226 Difference]: Without dead ends: 238 [2021-10-16 03:09:10,509 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-10-16 03:09:10,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 213. [2021-10-16 03:09:10,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 194 states have (on average 1.592783505154639) internal successors, (309), 212 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 309 transitions. [2021-10-16 03:09:10,567 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 309 transitions. Word has length 11 [2021-10-16 03:09:10,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:10,572 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 309 transitions. [2021-10-16 03:09:10,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 309 transitions. [2021-10-16 03:09:10,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:09:10,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:10,575 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:10,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:09:10,576 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:10,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:10,578 INFO L82 PathProgramCache]: Analyzing trace with hash -54959877, now seen corresponding path program 1 times [2021-10-16 03:09:10,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:10,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431502224] [2021-10-16 03:09:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:10,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:10,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:10,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431502224] [2021-10-16 03:09:10,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431502224] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:10,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:10,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:09:10,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618209241] [2021-10-16 03:09:10,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:09:10,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:09:10,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:10,708 INFO L87 Difference]: Start difference. First operand 213 states and 309 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:10,804 INFO L93 Difference]: Finished difference Result 655 states and 952 transitions. [2021-10-16 03:09:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:09:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-10-16 03:09:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:10,813 INFO L225 Difference]: With dead ends: 655 [2021-10-16 03:09:10,814 INFO L226 Difference]: Without dead ends: 443 [2021-10-16 03:09:10,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:10,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-10-16 03:09:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 235. [2021-10-16 03:09:10,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 216 states have (on average 1.587962962962963) internal successors, (343), 234 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 343 transitions. [2021-10-16 03:09:10,860 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 343 transitions. Word has length 15 [2021-10-16 03:09:10,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:10,861 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 343 transitions. [2021-10-16 03:09:10,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 343 transitions. [2021-10-16 03:09:10,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 03:09:10,862 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:10,862 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:10,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:09:10,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:10,869 INFO L82 PathProgramCache]: Analyzing trace with hash -526663497, now seen corresponding path program 1 times [2021-10-16 03:09:10,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:10,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749597272] [2021-10-16 03:09:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:10,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:11,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:11,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749597272] [2021-10-16 03:09:11,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749597272] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:11,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:11,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:09:11,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767803111] [2021-10-16 03:09:11,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:09:11,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:11,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:09:11,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:11,016 INFO L87 Difference]: Start difference. First operand 235 states and 343 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2021-10-16 03:09:11,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:11,114 INFO L93 Difference]: Finished difference Result 861 states and 1252 transitions. [2021-10-16 03:09:11,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 03:09:11,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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 [2021-10-16 03:09:11,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:11,119 INFO L225 Difference]: With dead ends: 861 [2021-10-16 03:09:11,120 INFO L226 Difference]: Without dead ends: 649 [2021-10-16 03:09:11,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-16 03:09:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2021-10-16 03:09:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 236. [2021-10-16 03:09:11,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 217 states have (on average 1.5852534562211982) internal successors, (344), 235 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 344 transitions. [2021-10-16 03:09:11,139 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 344 transitions. Word has length 16 [2021-10-16 03:09:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:11,140 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 344 transitions. [2021-10-16 03:09:11,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 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) [2021-10-16 03:09:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 344 transitions. [2021-10-16 03:09:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 03:09:11,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:11,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:11,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 03:09:11,142 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:11,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash -861660708, now seen corresponding path program 1 times [2021-10-16 03:09:11,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:11,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105567569] [2021-10-16 03:09:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:11,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:11,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:11,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105567569] [2021-10-16 03:09:11,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105567569] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:11,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:11,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:09:11,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408883974] [2021-10-16 03:09:11,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:09:11,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:11,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:09:11,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:11,271 INFO L87 Difference]: Start difference. First operand 236 states and 344 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:11,343 INFO L93 Difference]: Finished difference Result 658 states and 955 transitions. [2021-10-16 03:09:11,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:09:11,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2021-10-16 03:09:11,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:11,347 INFO L225 Difference]: With dead ends: 658 [2021-10-16 03:09:11,347 INFO L226 Difference]: Without dead ends: 446 [2021-10-16 03:09:11,349 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:11,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-10-16 03:09:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 237. [2021-10-16 03:09:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 218 states have (on average 1.5825688073394495) internal successors, (345), 236 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 345 transitions. [2021-10-16 03:09:11,362 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 345 transitions. Word has length 18 [2021-10-16 03:09:11,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:11,363 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 345 transitions. [2021-10-16 03:09:11,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 345 transitions. [2021-10-16 03:09:11,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 03:09:11,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:11,366 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:11,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 03:09:11,367 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:11,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:11,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1625297380, now seen corresponding path program 1 times [2021-10-16 03:09:11,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:11,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359140098] [2021-10-16 03:09:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:11,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:11,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:11,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:11,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359140098] [2021-10-16 03:09:11,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359140098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:11,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:11,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:11,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774802255] [2021-10-16 03:09:11,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:11,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:11,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:11,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,529 INFO L87 Difference]: Start difference. First operand 237 states and 345 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:11,560 INFO L93 Difference]: Finished difference Result 477 states and 696 transitions. [2021-10-16 03:09:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-16 03:09:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:11,562 INFO L225 Difference]: With dead ends: 477 [2021-10-16 03:09:11,562 INFO L226 Difference]: Without dead ends: 265 [2021-10-16 03:09:11,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-16 03:09:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 232. [2021-10-16 03:09:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 214 states have (on average 1.574766355140187) internal successors, (337), 231 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 337 transitions. [2021-10-16 03:09:11,575 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 337 transitions. Word has length 18 [2021-10-16 03:09:11,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:11,575 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 337 transitions. [2021-10-16 03:09:11,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,576 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 337 transitions. [2021-10-16 03:09:11,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:09:11,583 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:11,583 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:11,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 03:09:11,583 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:11,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:11,584 INFO L82 PathProgramCache]: Analyzing trace with hash -736516236, now seen corresponding path program 1 times [2021-10-16 03:09:11,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:11,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709238286] [2021-10-16 03:09:11,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:11,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:11,704 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:11,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709238286] [2021-10-16 03:09:11,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709238286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:11,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:11,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:11,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752729472] [2021-10-16 03:09:11,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:11,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:11,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:11,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,713 INFO L87 Difference]: Start difference. First operand 232 states and 337 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:11,780 INFO L93 Difference]: Finished difference Result 476 states and 695 transitions. [2021-10-16 03:09:11,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-10-16 03:09:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:11,783 INFO L225 Difference]: With dead ends: 476 [2021-10-16 03:09:11,783 INFO L226 Difference]: Without dead ends: 269 [2021-10-16 03:09:11,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-10-16 03:09:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 212. [2021-10-16 03:09:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 198 states have (on average 1.5404040404040404) internal successors, (305), 211 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2021-10-16 03:09:11,802 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 22 [2021-10-16 03:09:11,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:11,803 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2021-10-16 03:09:11,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,803 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2021-10-16 03:09:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-16 03:09:11,804 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:11,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:11,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 03:09:11,805 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash 410324044, now seen corresponding path program 1 times [2021-10-16 03:09:11,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:11,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232319248] [2021-10-16 03:09:11,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:11,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:11,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:11,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232319248] [2021-10-16 03:09:11,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232319248] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:11,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:11,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:11,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994450543] [2021-10-16 03:09:11,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:11,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:11,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:11,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,912 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:11,954 INFO L93 Difference]: Finished difference Result 444 states and 639 transitions. [2021-10-16 03:09:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:11,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) Word has length 26 [2021-10-16 03:09:11,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:11,956 INFO L225 Difference]: With dead ends: 444 [2021-10-16 03:09:11,956 INFO L226 Difference]: Without dead ends: 257 [2021-10-16 03:09:11,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-16 03:09:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 200. [2021-10-16 03:09:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 188 states have (on average 1.5265957446808511) internal successors, (287), 199 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 287 transitions. [2021-10-16 03:09:11,968 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 287 transitions. Word has length 26 [2021-10-16 03:09:11,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:11,969 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 287 transitions. [2021-10-16 03:09:11,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:11,969 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 287 transitions. [2021-10-16 03:09:11,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 03:09:11,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:11,972 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:11,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 03:09:11,973 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:11,973 INFO L82 PathProgramCache]: Analyzing trace with hash 120793490, now seen corresponding path program 1 times [2021-10-16 03:09:11,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:11,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749767426] [2021-10-16 03:09:11,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:11,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:12,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:12,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749767426] [2021-10-16 03:09:12,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749767426] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:12,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:12,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:12,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270742984] [2021-10-16 03:09:12,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:12,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:12,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,074 INFO L87 Difference]: Start difference. First operand 200 states and 287 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:12,150 INFO L93 Difference]: Finished difference Result 440 states and 631 transitions. [2021-10-16 03:09:12,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:12,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-10-16 03:09:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:12,153 INFO L225 Difference]: With dead ends: 440 [2021-10-16 03:09:12,153 INFO L226 Difference]: Without dead ends: 265 [2021-10-16 03:09:12,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-16 03:09:12,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 180. [2021-10-16 03:09:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 172 states have (on average 1.4825581395348837) internal successors, (255), 179 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 255 transitions. [2021-10-16 03:09:12,164 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 255 transitions. Word has length 27 [2021-10-16 03:09:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:12,166 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 255 transitions. [2021-10-16 03:09:12,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 255 transitions. [2021-10-16 03:09:12,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-16 03:09:12,169 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:12,169 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:12,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 03:09:12,169 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:12,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:12,170 INFO L82 PathProgramCache]: Analyzing trace with hash -590690080, now seen corresponding path program 1 times [2021-10-16 03:09:12,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:12,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276532363] [2021-10-16 03:09:12,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:12,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:12,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:12,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276532363] [2021-10-16 03:09:12,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276532363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:12,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:12,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:09:12,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397232318] [2021-10-16 03:09:12,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:09:12,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:12,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:09:12,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:09:12,363 INFO L87 Difference]: Start difference. First operand 180 states and 255 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:12,560 INFO L93 Difference]: Finished difference Result 619 states and 863 transitions. [2021-10-16 03:09:12,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:09:12,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-10-16 03:09:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:12,563 INFO L225 Difference]: With dead ends: 619 [2021-10-16 03:09:12,564 INFO L226 Difference]: Without dead ends: 464 [2021-10-16 03:09:12,564 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 71.7ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-16 03:09:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-10-16 03:09:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 215. [2021-10-16 03:09:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 207 states have (on average 1.4734299516908214) internal successors, (305), 214 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 305 transitions. [2021-10-16 03:09:12,580 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 305 transitions. Word has length 32 [2021-10-16 03:09:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:12,580 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 305 transitions. [2021-10-16 03:09:12,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 305 transitions. [2021-10-16 03:09:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 03:09:12,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:12,581 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:12,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 03:09:12,582 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:12,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:12,582 INFO L82 PathProgramCache]: Analyzing trace with hash 426307235, now seen corresponding path program 1 times [2021-10-16 03:09:12,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:12,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921464899] [2021-10-16 03:09:12,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:12,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:12,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:12,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:12,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921464899] [2021-10-16 03:09:12,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921464899] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:12,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:12,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:12,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117556894] [2021-10-16 03:09:12,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:12,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:12,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,653 INFO L87 Difference]: Start difference. First operand 215 states and 305 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:12,693 INFO L93 Difference]: Finished difference Result 391 states and 556 transitions. [2021-10-16 03:09:12,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:12,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-10-16 03:09:12,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:12,696 INFO L225 Difference]: With dead ends: 391 [2021-10-16 03:09:12,696 INFO L226 Difference]: Without dead ends: 236 [2021-10-16 03:09:12,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-16 03:09:12,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 211. [2021-10-16 03:09:12,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 204 states have (on average 1.4607843137254901) internal successors, (298), 210 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 298 transitions. [2021-10-16 03:09:12,711 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 298 transitions. Word has length 33 [2021-10-16 03:09:12,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:12,712 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 298 transitions. [2021-10-16 03:09:12,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,712 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 298 transitions. [2021-10-16 03:09:12,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 03:09:12,713 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:12,713 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:12,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 03:09:12,713 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:12,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:12,714 INFO L82 PathProgramCache]: Analyzing trace with hash -453272983, now seen corresponding path program 1 times [2021-10-16 03:09:12,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:12,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255797900] [2021-10-16 03:09:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:12,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:12,771 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:12,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255797900] [2021-10-16 03:09:12,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255797900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:12,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:12,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:12,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572786920] [2021-10-16 03:09:12,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:09:12,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:12,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:09:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,773 INFO L87 Difference]: Start difference. First operand 211 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:12,822 INFO L93 Difference]: Finished difference Result 449 states and 629 transitions. [2021-10-16 03:09:12,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:09:12,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2021-10-16 03:09:12,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:12,825 INFO L225 Difference]: With dead ends: 449 [2021-10-16 03:09:12,825 INFO L226 Difference]: Without dead ends: 281 [2021-10-16 03:09:12,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:09:12,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-16 03:09:12,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 195. [2021-10-16 03:09:12,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 190 states have (on average 1.431578947368421) internal successors, (272), 194 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 272 transitions. [2021-10-16 03:09:12,841 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 272 transitions. Word has length 33 [2021-10-16 03:09:12,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:12,841 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 272 transitions. [2021-10-16 03:09:12,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:12,842 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 272 transitions. [2021-10-16 03:09:12,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-16 03:09:12,842 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:12,842 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:12,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 03:09:12,843 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:12,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:12,843 INFO L82 PathProgramCache]: Analyzing trace with hash -916368706, now seen corresponding path program 1 times [2021-10-16 03:09:12,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:12,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28565527] [2021-10-16 03:09:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:12,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:12,954 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:12,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28565527] [2021-10-16 03:09:12,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28565527] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:12,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:12,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 03:09:12,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221905537] [2021-10-16 03:09:12,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 03:09:12,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:12,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 03:09:12,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:09:12,956 INFO L87 Difference]: Start difference. First operand 195 states and 272 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:13,285 INFO L93 Difference]: Finished difference Result 879 states and 1211 transitions. [2021-10-16 03:09:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:09:13,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 36 [2021-10-16 03:09:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:13,290 INFO L225 Difference]: With dead ends: 879 [2021-10-16 03:09:13,290 INFO L226 Difference]: Without dead ends: 722 [2021-10-16 03:09:13,291 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 88.3ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:09:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-10-16 03:09:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 252. [2021-10-16 03:09:13,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.4129554655870444) internal successors, (349), 251 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 349 transitions. [2021-10-16 03:09:13,319 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 349 transitions. Word has length 36 [2021-10-16 03:09:13,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:13,319 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 349 transitions. [2021-10-16 03:09:13,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,319 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 349 transitions. [2021-10-16 03:09:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:09:13,320 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:13,320 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:13,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 03:09:13,321 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash -65161924, now seen corresponding path program 1 times [2021-10-16 03:09:13,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:13,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61232197] [2021-10-16 03:09:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:13,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:13,429 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:13,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61232197] [2021-10-16 03:09:13,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61232197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:13,429 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:13,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:09:13,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360126053] [2021-10-16 03:09:13,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:09:13,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:13,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:09:13,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:09:13,432 INFO L87 Difference]: Start difference. First operand 252 states and 349 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:13,541 INFO L93 Difference]: Finished difference Result 406 states and 569 transitions. [2021-10-16 03:09:13,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:09:13,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 37 [2021-10-16 03:09:13,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:13,546 INFO L225 Difference]: With dead ends: 406 [2021-10-16 03:09:13,546 INFO L226 Difference]: Without dead ends: 404 [2021-10-16 03:09:13,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2021-10-16 03:09:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 254. [2021-10-16 03:09:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 249 states have (on average 1.4096385542168675) internal successors, (351), 253 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 351 transitions. [2021-10-16 03:09:13,572 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 351 transitions. Word has length 37 [2021-10-16 03:09:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:13,573 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 351 transitions. [2021-10-16 03:09:13,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 351 transitions. [2021-10-16 03:09:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 03:09:13,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:13,575 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:13,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 03:09:13,576 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:13,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2115500149, now seen corresponding path program 1 times [2021-10-16 03:09:13,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:13,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348189213] [2021-10-16 03:09:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:13,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:13,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:13,716 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:13,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348189213] [2021-10-16 03:09:13,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348189213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:13,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:13,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:09:13,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832443775] [2021-10-16 03:09:13,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:09:13,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:09:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:09:13,718 INFO L87 Difference]: Start difference. First operand 254 states and 351 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:13,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:13,992 INFO L93 Difference]: Finished difference Result 876 states and 1208 transitions. [2021-10-16 03:09:13,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:09:13,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 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 37 [2021-10-16 03:09:13,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:13,998 INFO L225 Difference]: With dead ends: 876 [2021-10-16 03:09:13,998 INFO L226 Difference]: Without dead ends: 706 [2021-10-16 03:09:13,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 68.3ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-16 03:09:14,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-10-16 03:09:14,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 263. [2021-10-16 03:09:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 258 states have (on average 1.3992248062015504) internal successors, (361), 262 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 361 transitions. [2021-10-16 03:09:14,044 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 361 transitions. Word has length 37 [2021-10-16 03:09:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:14,045 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 361 transitions. [2021-10-16 03:09:14,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 361 transitions. [2021-10-16 03:09:14,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-16 03:09:14,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:14,053 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:14,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 03:09:14,054 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:14,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:14,054 INFO L82 PathProgramCache]: Analyzing trace with hash 242013746, now seen corresponding path program 1 times [2021-10-16 03:09:14,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:14,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856576700] [2021-10-16 03:09:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:14,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:14,143 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:14,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856576700] [2021-10-16 03:09:14,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856576700] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:14,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:14,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 03:09:14,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026757211] [2021-10-16 03:09:14,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:09:14,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:09:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:09:14,146 INFO L87 Difference]: Start difference. First operand 263 states and 361 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:14,276 INFO L93 Difference]: Finished difference Result 588 states and 831 transitions. [2021-10-16 03:09:14,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 03:09:14,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 38 [2021-10-16 03:09:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:14,279 INFO L225 Difference]: With dead ends: 588 [2021-10-16 03:09:14,280 INFO L226 Difference]: Without dead ends: 418 [2021-10-16 03:09:14,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.7ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:09:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-10-16 03:09:14,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 269. [2021-10-16 03:09:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 268 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 367 transitions. [2021-10-16 03:09:14,310 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 367 transitions. Word has length 38 [2021-10-16 03:09:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:14,311 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 367 transitions. [2021-10-16 03:09:14,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,311 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 367 transitions. [2021-10-16 03:09:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-16 03:09:14,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:14,312 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:14,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 03:09:14,312 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:14,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:14,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2069289329, now seen corresponding path program 1 times [2021-10-16 03:09:14,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:14,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951439173] [2021-10-16 03:09:14,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:14,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:14,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:14,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951439173] [2021-10-16 03:09:14,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951439173] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:14,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:14,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 03:09:14,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833571333] [2021-10-16 03:09:14,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:09:14,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:09:14,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:09:14,361 INFO L87 Difference]: Start difference. First operand 269 states and 367 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:14,476 INFO L93 Difference]: Finished difference Result 780 states and 1050 transitions. [2021-10-16 03:09:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:09:14,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2021-10-16 03:09:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:14,480 INFO L225 Difference]: With dead ends: 780 [2021-10-16 03:09:14,481 INFO L226 Difference]: Without dead ends: 585 [2021-10-16 03:09:14,481 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:14,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-10-16 03:09:14,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 380. [2021-10-16 03:09:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.368) internal successors, (513), 379 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 513 transitions. [2021-10-16 03:09:14,551 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 513 transitions. Word has length 38 [2021-10-16 03:09:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:14,551 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 513 transitions. [2021-10-16 03:09:14,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 513 transitions. [2021-10-16 03:09:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-16 03:09:14,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:14,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:14,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 03:09:14,553 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:14,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:14,554 INFO L82 PathProgramCache]: Analyzing trace with hash -389036204, now seen corresponding path program 1 times [2021-10-16 03:09:14,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:14,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160232279] [2021-10-16 03:09:14,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:14,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:14,594 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:14,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160232279] [2021-10-16 03:09:14,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160232279] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:14,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:14,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:09:14,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035696873] [2021-10-16 03:09:14,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:09:14,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:14,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:09:14,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:09:14,596 INFO L87 Difference]: Start difference. First operand 380 states and 513 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 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) [2021-10-16 03:09:14,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:14,684 INFO L93 Difference]: Finished difference Result 846 states and 1134 transitions. [2021-10-16 03:09:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:09:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 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) Word has length 40 [2021-10-16 03:09:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:14,688 INFO L225 Difference]: With dead ends: 846 [2021-10-16 03:09:14,688 INFO L226 Difference]: Without dead ends: 498 [2021-10-16 03:09:14,689 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:09:14,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2021-10-16 03:09:14,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 334. [2021-10-16 03:09:14,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 329 states have (on average 1.3556231003039514) internal successors, (446), 333 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:14,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 446 transitions. [2021-10-16 03:09:14,730 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 446 transitions. Word has length 40 [2021-10-16 03:09:14,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:14,730 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 446 transitions. [2021-10-16 03:09:14,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 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) [2021-10-16 03:09:14,731 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 446 transitions. [2021-10-16 03:09:14,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-16 03:09:14,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:14,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:14,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 03:09:14,732 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:14,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:14,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1809330436, now seen corresponding path program 1 times [2021-10-16 03:09:14,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:14,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873966124] [2021-10-16 03:09:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:14,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:09:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:09:14,829 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:09:14,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873966124] [2021-10-16 03:09:14,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873966124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:09:14,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:09:14,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-16 03:09:14,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763626317] [2021-10-16 03:09:14,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 03:09:14,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:09:14,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 03:09:14,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:09:14,832 INFO L87 Difference]: Start difference. First operand 334 states and 446 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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) [2021-10-16 03:09:15,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:09:15,247 INFO L93 Difference]: Finished difference Result 1682 states and 2243 transitions. [2021-10-16 03:09:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:09:15,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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) Word has length 40 [2021-10-16 03:09:15,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:09:15,255 INFO L225 Difference]: With dead ends: 1682 [2021-10-16 03:09:15,256 INFO L226 Difference]: Without dead ends: 1416 [2021-10-16 03:09:15,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:09:15,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2021-10-16 03:09:15,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 414. [2021-10-16 03:09:15,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 409 states have (on average 1.3349633251833741) internal successors, (546), 413 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:09:15,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 546 transitions. [2021-10-16 03:09:15,319 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 546 transitions. Word has length 40 [2021-10-16 03:09:15,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:09:15,320 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 546 transitions. [2021-10-16 03:09:15,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 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) [2021-10-16 03:09:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 546 transitions. [2021-10-16 03:09:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-16 03:09:15,321 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:09:15,321 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:09:15,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 03:09:15,322 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-10-16 03:09:15,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:09:15,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1744077048, now seen corresponding path program 1 times [2021-10-16 03:09:15,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:09:15,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120037882] [2021-10-16 03:09:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:09:15,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:09:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:09:15,351 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:09:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:09:15,423 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:09:15,423 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:09:15,424 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,428 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,429 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,432 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:09:15,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 03:09:15,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:09:15,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:09:15 BoogieIcfgContainer [2021-10-16 03:09:15,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:09:15,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:09:15,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:09:15,549 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:09:15,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:09:09" (3/4) ... [2021-10-16 03:09:15,551 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 03:09:15,688 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:09:15,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:09:15,690 INFO L168 Benchmark]: Toolchain (without parser) took 8616.32 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 102.0 MB in the beginning and 58.4 MB in the end (delta: 43.6 MB). Peak memory consumption was 105.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,690 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:09:15,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.84 ms. Allocated memory is still 134.2 MB. Free memory was 101.7 MB in the beginning and 102.2 MB in the end (delta: -480.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.33 ms. Allocated memory is still 134.2 MB. Free memory was 102.2 MB in the beginning and 97.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,691 INFO L168 Benchmark]: Boogie Preprocessor took 98.97 ms. Allocated memory is still 134.2 MB. Free memory was 97.4 MB in the beginning and 94.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,691 INFO L168 Benchmark]: RCFGBuilder took 1956.03 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 79.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,692 INFO L168 Benchmark]: TraceAbstraction took 5752.22 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 79.1 MB in the beginning and 75.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,692 INFO L168 Benchmark]: Witness Printer took 139.78 ms. Allocated memory is still 197.1 MB. Free memory was 75.1 MB in the beginning and 58.4 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:09:15,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 548.84 ms. Allocated memory is still 134.2 MB. Free memory was 101.7 MB in the beginning and 102.2 MB in the end (delta: -480.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.33 ms. Allocated memory is still 134.2 MB. Free memory was 102.2 MB in the beginning and 97.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.97 ms. Allocated memory is still 134.2 MB. Free memory was 97.4 MB in the beginning and 94.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1956.03 ms. Allocated memory is still 134.2 MB. Free memory was 94.1 MB in the beginning and 79.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5752.22 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 79.1 MB in the beginning and 75.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. * Witness Printer took 139.78 ms. Allocated memory is still 197.1 MB. Free memory was 75.1 MB in the beginning and 58.4 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 619]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] msg_t nomsg = (msg_t )-1; [L25] port_t cs1 ; [L26] int8_t cs1_old ; [L27] int8_t cs1_new ; [L28] port_t cs2 ; [L29] int8_t cs2_old ; [L30] int8_t cs2_new ; [L31] port_t s1s2 ; [L32] int8_t s1s2_old ; [L33] int8_t s1s2_new ; [L34] port_t s1s1 ; [L35] int8_t s1s1_old ; [L36] int8_t s1s1_new ; [L37] port_t s2s1 ; [L38] int8_t s2s1_old ; [L39] int8_t s2s1_new ; [L40] port_t s2s2 ; [L41] int8_t s2s2_old ; [L42] int8_t s2s2_new ; [L43] port_t s1p ; [L44] int8_t s1p_old ; [L45] int8_t s1p_new ; [L46] port_t s2p ; [L47] int8_t s2p_old ; [L48] int8_t s2p_new ; [L51] _Bool side1Failed ; [L52] _Bool side2Failed ; [L53] msg_t side1_written ; [L54] msg_t side2_written ; [L60] static _Bool side1Failed_History_0 ; [L61] static _Bool side1Failed_History_1 ; [L62] static _Bool side1Failed_History_2 ; [L63] static _Bool side2Failed_History_0 ; [L64] static _Bool side2Failed_History_1 ; [L65] static _Bool side2Failed_History_2 ; [L66] static int8_t active_side_History_0 ; [L67] static int8_t active_side_History_1 ; [L68] static int8_t active_side_History_2 ; [L69] static msg_t manual_selection_History_0 ; [L70] static msg_t manual_selection_History_1 ; [L71] static msg_t manual_selection_History_2 ; [L542] int c1 ; [L543] int i2 ; [L546] c1 = 0 [L547] side1Failed = __VERIFIER_nondet_bool() [L548] side2Failed = __VERIFIER_nondet_bool() [L549] side1_written = __VERIFIER_nondet_char() [L550] side2_written = __VERIFIER_nondet_char() [L551] side1Failed_History_0 = __VERIFIER_nondet_bool() [L552] side1Failed_History_1 = __VERIFIER_nondet_bool() [L553] side1Failed_History_2 = __VERIFIER_nondet_bool() [L554] side2Failed_History_0 = __VERIFIER_nondet_bool() [L555] side2Failed_History_1 = __VERIFIER_nondet_bool() [L556] side2Failed_History_2 = __VERIFIER_nondet_bool() [L557] active_side_History_0 = __VERIFIER_nondet_char() [L558] active_side_History_1 = __VERIFIER_nondet_char() [L559] active_side_History_2 = __VERIFIER_nondet_char() [L560] manual_selection_History_0 = __VERIFIER_nondet_char() [L561] manual_selection_History_1 = __VERIFIER_nondet_char() [L562] manual_selection_History_2 = __VERIFIER_nondet_char() [L197] COND FALSE !((int )side1Failed_History_0 != 0) [L200] COND FALSE !((int )side2Failed_History_0 != 0) [L203] COND FALSE !((int )active_side_History_0 != -2) [L206] COND FALSE !((int )manual_selection_History_0 != 0) [L209] COND FALSE !((int )side1Failed_History_1 != 0) [L212] COND FALSE !((int )side2Failed_History_1 != 0) [L215] COND FALSE !((int )active_side_History_1 != -2) [L218] COND FALSE !((int )manual_selection_History_1 != 0) [L221] COND FALSE !((int )side1Failed_History_2 != 0) [L224] COND FALSE !((int )side2Failed_History_2 != 0) [L227] COND FALSE !((int )active_side_History_2 != -2) [L230] COND FALSE !((int )manual_selection_History_2 != 0) [L233] return (1); [L563] i2 = init() [L58] COND FALSE !(!cond) [L565] cs1_old = nomsg [L566] cs1_new = nomsg [L567] cs2_old = nomsg [L568] cs2_new = nomsg [L569] s1s2_old = nomsg [L570] s1s2_new = nomsg [L571] s1s1_old = nomsg [L572] s1s1_new = nomsg [L573] s2s1_old = nomsg [L574] s2s1_new = nomsg [L575] s2s2_old = nomsg [L576] s2s2_new = nomsg [L577] s1p_old = nomsg [L578] s1p_new = nomsg [L579] s2p_old = nomsg [L580] s2p_new = nomsg [L581] i2 = 0 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-1, cs2=0, cs2_new=-1, cs2_old=-1, manual_selection_History_0=0, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L582] COND TRUE i2 < 10 [L251] msg_t manual_selection ; [L252] char tmp ; [L255] tmp = __VERIFIER_nondet_char() [L256] manual_selection = tmp [L167] manual_selection_History_2 = manual_selection_History_1 [L168] manual_selection_History_1 = manual_selection_History_0 [L169] manual_selection_History_0 = val [L258] EXPR manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L258] cs1_new = manual_selection != nomsg && cs1_new == nomsg ? manual_selection : cs1_new [L259] EXPR manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L259] cs2_new = manual_selection != nomsg && cs2_new == nomsg ? manual_selection : cs2_new [L260] manual_selection = (msg_t )0 [L266] int8_t side1 ; [L267] int8_t side2 ; [L268] msg_t manual_selection ; [L269] int8_t next_state ; [L272] side1 = nomsg [L273] side2 = nomsg [L274] manual_selection = (msg_t )0 [L275] side1Failed = __VERIFIER_nondet_bool() [L77] side1Failed_History_2 = side1Failed_History_1 [L78] side1Failed_History_1 = side1Failed_History_0 [L79] side1Failed_History_0 = val VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L277] COND FALSE !(\read(side1Failed)) [L284] side1 = s1s1_old [L285] s1s1_old = nomsg [L286] side2 = s2s1_old [L287] s2s1_old = nomsg [L288] manual_selection = cs1_old [L289] cs1_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L290] COND TRUE (int )side1 == (int )side2 [L291] next_state = (int8_t )1 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=-1, s1s1=0, s1s1_new=-1, s1s1_old=-1, s1s2=0, s1s2_new=-1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=0, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L314] EXPR next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L314] s1s1_new = next_state != nomsg && s1s1_new == nomsg ? next_state : s1s1_new [L315] EXPR next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L315] s1s2_new = next_state != nomsg && s1s2_new == nomsg ? next_state : s1s2_new [L316] EXPR next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L316] s1p_new = next_state != nomsg && s1p_new == nomsg ? next_state : s1p_new [L317] side1_written = next_state VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L323] int8_t side1 ; [L324] int8_t side2 ; [L325] msg_t manual_selection ; [L326] int8_t next_state ; [L329] side1 = nomsg [L330] side2 = nomsg [L331] manual_selection = (msg_t )0 [L332] side2Failed = __VERIFIER_nondet_bool() [L107] side2Failed_History_2 = side2Failed_History_1 [L108] side2Failed_History_1 = side2Failed_History_0 [L109] side2Failed_History_0 = val VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L334] COND FALSE !(\read(side2Failed)) [L341] side1 = s1s2_old [L342] s1s2_old = nomsg [L343] side2 = s2s2_old [L344] s2s2_old = nomsg [L345] manual_selection = cs2_old [L346] cs2_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L347] COND TRUE (int )side1 == (int )side2 [L348] next_state = (int8_t )1 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=-1, s2p_old=-1, s2s1=0, s2s1_new=-1, s2s1_old=-1, s2s2=0, s2s2_new=-1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=0, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L371] EXPR next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L371] s2s1_new = next_state != nomsg && s2s1_new == nomsg ? next_state : s2s1_new [L372] EXPR next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L372] s2s2_new = next_state != nomsg && s2s2_new == nomsg ? next_state : s2s2_new [L373] EXPR next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L373] s2p_new = next_state != nomsg && s2p_new == nomsg ? next_state : s2p_new [L374] side2_written = next_state VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L380] int8_t active_side ; [L381] int8_t tmp ; [L382] int8_t side1 ; [L383] int8_t side2 ; [L148] COND TRUE (int )index == 0 [L149] return (active_side_History_0); VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L386] tmp = read_active_side_history((unsigned char)0) [L387] active_side = tmp [L388] side1 = nomsg [L389] side2 = nomsg [L390] side1 = s1p_old [L391] s1p_old = nomsg [L392] side2 = s2p_old [L393] s2p_old = nomsg VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L394] COND FALSE !((int )side1 == 1) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L397] COND FALSE !((int )side2 == 1) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L400] COND FALSE !((int )side1 == 0) VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L408] COND TRUE (int )side1 == (int )nomsg [L409] COND FALSE !((int )side2 == 0) [L412] active_side = (int8_t )0 VAL [active_side_History_0=-2, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-128, cs1_old=-1, cs2=0, cs2_new=-128, cs2_old=-1, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=1, s1p_old=-1, s1s1=0, s1s1_new=1, s1s1_old=-1, s1s2=0, s1s2_new=1, s1s2_old=-1, s2p=0, s2p_new=1, s2p_old=-1, s2s1=0, s2s1_new=1, s2s1_old=-1, s2s2=0, s2s2_new=1, s2s2_old=-1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L137] active_side_History_2 = active_side_History_1 [L138] active_side_History_1 = active_side_History_0 [L139] active_side_History_0 = val [L588] cs1_old = cs1_new [L589] cs1_new = nomsg [L590] cs2_old = cs2_new [L591] cs2_new = nomsg [L592] s1s2_old = s1s2_new [L593] s1s2_new = nomsg [L594] s1s1_old = s1s1_new [L595] s1s1_new = nomsg [L596] s2s1_old = s2s1_new [L597] s2s1_new = nomsg [L598] s2s2_old = s2s2_new [L599] s2s2_new = nomsg [L600] s1p_old = s1p_new [L601] s1p_new = nomsg [L602] s2p_old = s2p_new [L603] s2p_new = nomsg [L423] int tmp ; [L424] msg_t tmp___0 ; [L425] _Bool tmp___1 ; [L426] _Bool tmp___2 ; [L427] _Bool tmp___3 ; [L428] _Bool tmp___4 ; [L429] int8_t tmp___5 ; [L430] _Bool tmp___6 ; [L431] _Bool tmp___7 ; [L432] _Bool tmp___8 ; [L433] int8_t tmp___9 ; [L434] _Bool tmp___10 ; [L435] _Bool tmp___11 ; [L436] _Bool tmp___12 ; [L437] msg_t tmp___13 ; [L438] _Bool tmp___14 ; [L439] _Bool tmp___15 ; [L440] _Bool tmp___16 ; [L441] _Bool tmp___17 ; [L442] int8_t tmp___18 ; [L443] int8_t tmp___19 ; [L444] int8_t tmp___20 ; [L447] COND TRUE ! side1Failed [L448] tmp = 1 [L58] COND FALSE !(!cond) [L178] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L181] COND TRUE (int )index == 1 [L182] return (manual_selection_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L456] tmp___0 = read_manual_selection_history((unsigned char)1) [L457] COND TRUE ! tmp___0 [L88] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L91] COND TRUE (int )index == 1 [L92] return (side1Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L458] tmp___1 = read_side1_failed_history((unsigned char)1) [L459] COND TRUE ! tmp___1 [L88] COND TRUE (int )index == 0 [L89] return (side1Failed_History_0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L460] tmp___2 = read_side1_failed_history((unsigned char)0) [L461] COND TRUE ! tmp___2 [L118] COND FALSE !((int )index == 0) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L121] COND TRUE (int )index == 1 [L122] return (side2Failed_History_1); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L462] tmp___3 = read_side2_failed_history((unsigned char)1) [L463] COND TRUE ! tmp___3 [L118] COND TRUE (int )index == 0 [L119] return (side2Failed_History_0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L464] tmp___4 = read_side2_failed_history((unsigned char)0) [L465] COND TRUE ! tmp___4 VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L466] COND FALSE !(! ((int )side1_written == 1)) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L471] COND FALSE !(! (! ((int )side1_written == 0))) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L476] COND TRUE ! (! ((int )side1_written == 1)) VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L477] COND TRUE ! ((int )side2_written == 0) [L478] return (0); VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L604] c1 = check() [L617] COND TRUE ! arg VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] [L619] reach_error() VAL [active_side_History_0=0, active_side_History_1=-2, active_side_History_2=-2, cs1=0, cs1_new=-1, cs1_old=-128, cs2=0, cs2_new=-1, cs2_old=-128, manual_selection_History_0=-128, manual_selection_History_1=0, manual_selection_History_2=0, nomsg=-1, s1p=0, s1p_new=-1, s1p_old=1, s1s1=0, s1s1_new=-1, s1s1_old=1, s1s2=0, s1s2_new=-1, s1s2_old=1, s2p=0, s2p_new=-1, s2p_old=1, s2s1=0, s2s1_new=-1, s2s1_old=1, s2s2=0, s2s2_new=-1, s2s2_old=1, side1_written=1, side1Failed=0, side1Failed_History_0=0, side1Failed_History_1=0, side1Failed_History_2=0, side2_written=1, side2Failed=0, side2Failed_History_0=0, side2Failed_History_1=0, side2Failed_History_2=0] - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 238 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 5576.8ms, OverallIterations: 19, TraceHistogramMax: 1, EmptinessCheckTime: 43.0ms, AutomataDifference: 2520.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5729 SDtfs, 7207 SDslu, 10521 SDs, 0 SdLazy, 747 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 847.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 455.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=414occurred in iteration=18, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 508.3ms AutomataMinimizationTime, 18 MinimizatonAttempts, 4030 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 90.5ms SsaConstructionTime, 693.3ms SatisfiabilityAnalysisTime, 1295.9ms InterpolantComputationTime, 559 NumberOfCodeBlocks, 559 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 1617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 03:09:15,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4999eacd-500b-456f-8f5b-581df25f5676/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...