./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3102ca0659fbbd15269b525dd7b096164ab7cd0af67dfa99033803ea46b0a8e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:46:34,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:46:34,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:46:34,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:46:34,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:46:34,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:46:34,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:46:34,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:46:34,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:46:34,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:46:34,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:46:34,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:46:34,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:46:34,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:46:34,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:46:34,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:46:34,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:46:34,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:46:34,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:46:34,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:46:34,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:46:34,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:46:34,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:46:34,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:46:34,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:46:34,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:46:34,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:46:34,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:46:34,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:46:34,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:46:34,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:46:34,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:46:34,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:46:34,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:46:34,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:46:34,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:46:34,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:46:34,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:46:34,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:46:34,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:46:34,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:46:34,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:46:34,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:46:34,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:46:34,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:46:34,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:46:34,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:46:34,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:46:34,838 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:46:34,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:46:34,838 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:46:34,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:46:34,840 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:46:34,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:46:34,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:46:34,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:46:34,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:46:34,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:46:34,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:46:34,841 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:46:34,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:46:34,841 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:46:34,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:46:34,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:46:34,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:46:34,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:46:34,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:46:34,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:46:34,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:46:34,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:46:34,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:46:34,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:46:34,845 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:46:34,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:46:34,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:46:34,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3102ca0659fbbd15269b525dd7b096164ab7cd0af67dfa99033803ea46b0a8e [2022-10-17 10:46:35,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:46:35,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:46:35,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:46:35,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:46:35,182 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:46:35,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c [2022-10-17 10:46:35,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/data/5f522bbf7/22eb86d4dae0446e905a68834224f654/FLAGa93bad397 [2022-10-17 10:46:35,853 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:46:35,864 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c [2022-10-17 10:46:35,901 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/data/5f522bbf7/22eb86d4dae0446e905a68834224f654/FLAGa93bad397 [2022-10-17 10:46:36,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/data/5f522bbf7/22eb86d4dae0446e905a68834224f654 [2022-10-17 10:46:36,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:46:36,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:46:36,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:46:36,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:46:36,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:46:36,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:36,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c28b804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36, skipping insertion in model container [2022-10-17 10:46:36,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:36,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:46:36,174 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:46:36,405 WARN L230 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_331deea1-61be-49fc-ac61-2794dd3ef35d/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c[3700,3713] [2022-10-17 10:46:36,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:46:36,698 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:46:36,729 WARN L230 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_331deea1-61be-49fc-ac61-2794dd3ef35d/sv-benchmarks/c/product-lines/elevator_spec14_product11.cil.c[3700,3713] [2022-10-17 10:46:36,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:46:36,899 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:46:36,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36 WrapperNode [2022-10-17 10:46:36,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:46:36,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:46:36,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:46:36,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:46:36,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:36,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,042 INFO L138 Inliner]: procedures = 90, calls = 331, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1061 [2022-10-17 10:46:37,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:46:37,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:46:37,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:46:37,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:46:37,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,168 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:46:37,190 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:46:37,190 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:46:37,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:46:37,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (1/1) ... [2022-10-17 10:46:37,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:46:37,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:46:37,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:46:37,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_331deea1-61be-49fc-ac61-2794dd3ef35d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:46:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:46:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-10-17 10:46:37,281 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-10-17 10:46:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-10-17 10:46:37,281 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-10-17 10:46:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-10-17 10:46:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-10-17 10:46:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-10-17 10:46:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-10-17 10:46:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-10-17 10:46:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-10-17 10:46:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-10-17 10:46:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-10-17 10:46:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:46:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:46:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:46:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:46:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-10-17 10:46:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-10-17 10:46:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-10-17 10:46:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-10-17 10:46:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-10-17 10:46:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-10-17 10:46:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-10-17 10:46:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-10-17 10:46:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-10-17 10:46:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-10-17 10:46:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-10-17 10:46:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2022-10-17 10:46:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-10-17 10:46:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-10-17 10:46:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-10-17 10:46:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-10-17 10:46:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-10-17 10:46:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-10-17 10:46:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-10-17 10:46:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-10-17 10:46:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:46:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-10-17 10:46:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-10-17 10:46:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-10-17 10:46:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-10-17 10:46:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-10-17 10:46:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-10-17 10:46:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:46:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:46:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-10-17 10:46:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-10-17 10:46:37,426 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:46:37,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:46:38,717 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:46:38,742 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:46:38,742 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:46:38,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:46:38 BoogieIcfgContainer [2022-10-17 10:46:38,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:46:38,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:46:38,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:46:38,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:46:38,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:46:36" (1/3) ... [2022-10-17 10:46:38,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7987d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:46:38, skipping insertion in model container [2022-10-17 10:46:38,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:46:36" (2/3) ... [2022-10-17 10:46:38,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7987d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:46:38, skipping insertion in model container [2022-10-17 10:46:38,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:46:38" (3/3) ... [2022-10-17 10:46:38,759 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product11.cil.c [2022-10-17 10:46:38,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:46:38,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:46:38,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:46:38,898 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5dcdc2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:46:38,898 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:46:38,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 411 states have (on average 1.683698296836983) internal successors, (692), 427 states have internal predecessors, (692), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2022-10-17 10:46:38,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-17 10:46:38,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:46:38,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:46:38,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:46:38,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:46:38,969 INFO L85 PathProgramCache]: Analyzing trace with hash -63846354, now seen corresponding path program 1 times [2022-10-17 10:46:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:46:38,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684610954] [2022-10-17 10:46:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:46:38,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:46:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-10-17 10:46:39,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-17 10:46:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 10:46:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-17 10:46:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-17 10:46:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 10:46:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:46:39,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:46:39,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684610954] [2022-10-17 10:46:39,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684610954] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:46:39,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:46:39,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:46:39,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018823232] [2022-10-17 10:46:39,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:46:39,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:46:39,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:46:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:46:39,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:46:39,906 INFO L87 Difference]: Start difference. First operand has 526 states, 411 states have (on average 1.683698296836983) internal successors, (692), 427 states have internal predecessors, (692), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:46:44,590 INFO L93 Difference]: Finished difference Result 1249 states and 2104 transitions. [2022-10-17 10:46:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:46:44,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2022-10-17 10:46:44,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:46:44,613 INFO L225 Difference]: With dead ends: 1249 [2022-10-17 10:46:44,614 INFO L226 Difference]: Without dead ends: 719 [2022-10-17 10:46:44,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:46:44,626 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 1327 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 2365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:46:44,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1729 Invalid, 2365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [405 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-17 10:46:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-17 10:46:44,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 521. [2022-10-17 10:46:44,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 407 states have (on average 1.6732186732186731) internal successors, (681), 422 states have internal predecessors, (681), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-17 10:46:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 862 transitions. [2022-10-17 10:46:44,854 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 862 transitions. Word has length 101 [2022-10-17 10:46:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:46:44,854 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 862 transitions. [2022-10-17 10:46:44,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 862 transitions. [2022-10-17 10:46:44,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-17 10:46:44,863 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:46:44,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:46:44,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:46:44,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:46:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:46:44,865 INFO L85 PathProgramCache]: Analyzing trace with hash -90127163, now seen corresponding path program 1 times [2022-10-17 10:46:44,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:46:44,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306114091] [2022-10-17 10:46:44,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:46:44,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:46:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:46:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-17 10:46:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-17 10:46:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-17 10:46:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-17 10:46:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:46:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-10-17 10:46:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:45,292 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:46:45,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:46:45,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306114091] [2022-10-17 10:46:45,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306114091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:46:45,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:46:45,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:46:45,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125630021] [2022-10-17 10:46:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:46:45,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:46:45,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:46:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:46:45,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:46:45,299 INFO L87 Difference]: Start difference. First operand 521 states and 862 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:46:49,302 INFO L93 Difference]: Finished difference Result 1223 states and 2031 transitions. [2022-10-17 10:46:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:46:49,303 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2022-10-17 10:46:49,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:46:49,313 INFO L225 Difference]: With dead ends: 1223 [2022-10-17 10:46:49,313 INFO L226 Difference]: Without dead ends: 719 [2022-10-17 10:46:49,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:46:49,322 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 1301 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 2359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:46:49,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 1690 Invalid, 2359 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [403 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-17 10:46:49,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-17 10:46:49,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 521. [2022-10-17 10:46:49,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 407 states have (on average 1.6707616707616708) internal successors, (680), 422 states have internal predecessors, (680), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-17 10:46:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 861 transitions. [2022-10-17 10:46:49,515 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 861 transitions. Word has length 102 [2022-10-17 10:46:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:46:49,517 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 861 transitions. [2022-10-17 10:46:49,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:49,518 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 861 transitions. [2022-10-17 10:46:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-10-17 10:46:49,524 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:46:49,524 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:46:49,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:46:49,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:46:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:46:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1445673078, now seen corresponding path program 1 times [2022-10-17 10:46:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:46:49,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994396220] [2022-10-17 10:46:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:46:49,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:46:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-17 10:46:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:46:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-17 10:46:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-17 10:46:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-17 10:46:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-17 10:46:49,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:46:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:46:49,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:46:49,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994396220] [2022-10-17 10:46:49,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994396220] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:46:49,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:46:49,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:46:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650122661] [2022-10-17 10:46:49,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:46:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:46:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:46:49,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:46:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:46:49,923 INFO L87 Difference]: Start difference. First operand 521 states and 861 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:53,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:46:53,829 INFO L93 Difference]: Finished difference Result 1223 states and 2030 transitions. [2022-10-17 10:46:53,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:46:53,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-10-17 10:46:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:46:53,850 INFO L225 Difference]: With dead ends: 1223 [2022-10-17 10:46:53,850 INFO L226 Difference]: Without dead ends: 719 [2022-10-17 10:46:53,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:46:53,855 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 1295 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 1958 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:46:53,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1707 Invalid, 2360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1958 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-17 10:46:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-17 10:46:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 521. [2022-10-17 10:46:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 407 states have (on average 1.6683046683046683) internal successors, (679), 422 states have internal predecessors, (679), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-17 10:46:53,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 860 transitions. [2022-10-17 10:46:53,970 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 860 transitions. Word has length 103 [2022-10-17 10:46:53,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:46:53,971 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 860 transitions. [2022-10-17 10:46:53,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:53,971 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 860 transitions. [2022-10-17 10:46:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-17 10:46:53,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:46:53,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:46:53,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:46:53,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:46:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:46:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1058764319, now seen corresponding path program 1 times [2022-10-17 10:46:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:46:53,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786993281] [2022-10-17 10:46:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:46:53,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:46:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:46:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-17 10:46:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-17 10:46:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-17 10:46:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-17 10:46:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 10:46:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-17 10:46:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:46:54,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:46:54,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786993281] [2022-10-17 10:46:54,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786993281] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:46:54,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:46:54,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:46:54,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425226916] [2022-10-17 10:46:54,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:46:54,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:46:54,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:46:54,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:46:54,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:46:54,358 INFO L87 Difference]: Start difference. First operand 521 states and 860 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:57,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:46:57,830 INFO L93 Difference]: Finished difference Result 1223 states and 2029 transitions. [2022-10-17 10:46:57,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:46:57,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2022-10-17 10:46:57,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:46:57,836 INFO L225 Difference]: With dead ends: 1223 [2022-10-17 10:46:57,837 INFO L226 Difference]: Without dead ends: 719 [2022-10-17 10:46:57,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:46:57,843 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 1281 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:46:57,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1739 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-17 10:46:57,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-17 10:46:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 521. [2022-10-17 10:46:57,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 407 states have (on average 1.6658476658476657) internal successors, (678), 422 states have internal predecessors, (678), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-17 10:46:57,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 859 transitions. [2022-10-17 10:46:57,956 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 859 transitions. Word has length 104 [2022-10-17 10:46:57,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:46:57,957 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 859 transitions. [2022-10-17 10:46:57,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:46:57,957 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 859 transitions. [2022-10-17 10:46:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-17 10:46:57,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:46:57,961 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:46:57,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:46:57,962 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:46:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:46:57,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1804631782, now seen corresponding path program 1 times [2022-10-17 10:46:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:46:57,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549252200] [2022-10-17 10:46:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:46:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:46:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:46:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:46:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-17 10:46:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-17 10:46:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-17 10:46:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-17 10:46:58,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-17 10:46:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:46:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-17 10:46:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:46:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:46:58,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:46:58,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549252200] [2022-10-17 10:46:58,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549252200] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:46:58,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:46:58,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:46:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139185882] [2022-10-17 10:46:58,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:46:58,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:46:58,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:46:58,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:46:58,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:46:58,220 INFO L87 Difference]: Start difference. First operand 521 states and 859 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:47:01,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:47:01,832 INFO L93 Difference]: Finished difference Result 1223 states and 2028 transitions. [2022-10-17 10:47:01,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:47:01,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2022-10-17 10:47:01,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:47:01,839 INFO L225 Difference]: With dead ends: 1223 [2022-10-17 10:47:01,839 INFO L226 Difference]: Without dead ends: 719 [2022-10-17 10:47:01,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:47:01,844 INFO L413 NwaCegarLoop]: 836 mSDtfsCounter, 1289 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 2347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 405 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:47:01,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 1687 Invalid, 2347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [405 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-17 10:47:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2022-10-17 10:47:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 521. [2022-10-17 10:47:01,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 407 states have (on average 1.6633906633906634) internal successors, (677), 422 states have internal predecessors, (677), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2022-10-17 10:47:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 858 transitions. [2022-10-17 10:47:01,946 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 858 transitions. Word has length 105 [2022-10-17 10:47:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:47:01,946 INFO L495 AbstractCegarLoop]: Abstraction has 521 states and 858 transitions. [2022-10-17 10:47:01,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-17 10:47:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 858 transitions. [2022-10-17 10:47:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-10-17 10:47:01,950 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:47:01,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 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] [2022-10-17 10:47:01,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:47:01,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:47:01,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:47:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash -165243139, now seen corresponding path program 1 times [2022-10-17 10:47:01,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:47:01,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904802730] [2022-10-17 10:47:01,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:47:01,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:47:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:47:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:47:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-17 10:47:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 10:47:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:47:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-17 10:47:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-17 10:47:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:47:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:47:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-17 10:47:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-10-17 10:47:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:47:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-10-17 10:47:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:47:02,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-17 10:47:02,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:47:02,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904802730] [2022-10-17 10:47:02,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904802730] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:47:02,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:47:02,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-17 10:47:02,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049778200] [2022-10-17 10:47:02,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:47:02,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:47:02,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:47:02,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:47:02,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:47:02,429 INFO L87 Difference]: Start difference. First operand 521 states and 858 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)