./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8 --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 82b978acf3e870955535549d16879da8eac705f6c266c172b47775a3acd47fc6 --- 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-2329fc7 [2022-12-13 16:28:29,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:28:29,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:28:29,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:28:29,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:28:29,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:28:29,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:28:29,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:28:29,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:28:29,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:28:29,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:28:29,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:28:29,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:28:29,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:28:29,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:28:29,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:28:29,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:28:29,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:28:29,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:28:29,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:28:29,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:28:29,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:28:29,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:28:29,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:28:29,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:28:29,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:28:29,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:28:29,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:28:29,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:28:29,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:28:29,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:28:29,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:28:29,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:28:29,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:28:29,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:28:29,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:28:29,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:28:29,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:28:29,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:28:29,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:28:29,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:28:29,782 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:28:29,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:28:29,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:28:29,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:28:29,802 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:28:29,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:28:29,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:28:29,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:28:29,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:28:29,803 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:28:29,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:28:29,804 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:28:29,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:28:29,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:28:29,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:28:29,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:28:29,805 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:28:29,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:28:29,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:28:29,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:28:29,807 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:28:29,808 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82b978acf3e870955535549d16879da8eac705f6c266c172b47775a3acd47fc6 [2022-12-13 16:28:30,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:28:30,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:28:30,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:28:30,032 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:28:30,032 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:28:30,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-12-13 16:28:32,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:28:33,013 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:28:33,013 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-12-13 16:28:33,044 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/data/b10bf42a7/04fd2a96b97b4f559414fd0411dd137b/FLAGe46fae988 [2022-12-13 16:28:33,057 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/data/b10bf42a7/04fd2a96b97b4f559414fd0411dd137b [2022-12-13 16:28:33,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:28:33,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:28:33,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:28:33,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:28:33,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:28:33,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:28:33" (1/1) ... [2022-12-13 16:28:33,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cae9402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:33, skipping insertion in model container [2022-12-13 16:28:33,065 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:28:33" (1/1) ... [2022-12-13 16:28:33,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:28:33,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:28:33,809 WARN L237 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_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40132,40145] [2022-12-13 16:28:36,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:28:36,462 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:28:36,659 WARN L237 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_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[40132,40145] [2022-12-13 16:28:38,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:28:38,778 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:28:38,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38 WrapperNode [2022-12-13 16:28:38,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:28:38,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:28:38,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:28:38,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:28:38,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:38,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,022 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22648 [2022-12-13 16:28:39,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:28:39,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:28:39,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:28:39,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:28:39,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,302 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:28:39,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:28:39,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:28:39,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:28:39,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (1/1) ... [2022-12-13 16:28:39,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:28:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:28:39,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:28:39,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72913bc8-dae7-4b41-a9a4-27e1ebf0c59e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:28:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:28:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:28:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:28:39,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:28:39,740 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:28:39,741 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:28:46,419 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:28:46,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:28:46,449 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:28:46,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:28:46 BoogieIcfgContainer [2022-12-13 16:28:46,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:28:46,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:28:46,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:28:46,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:28:46,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:28:33" (1/3) ... [2022-12-13 16:28:46,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7b047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:28:46, skipping insertion in model container [2022-12-13 16:28:46,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:28:38" (2/3) ... [2022-12-13 16:28:46,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc7b047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:28:46, skipping insertion in model container [2022-12-13 16:28:46,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:28:46" (3/3) ... [2022-12-13 16:28:46,461 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.5.1.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2022-12-13 16:28:46,474 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:28:46,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:28:46,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:28:46,586 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;@7913271b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:28:46,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:28:46,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 6860 states, 6842 states have (on average 1.7497807658579363) internal successors, (11972), 6859 states have internal predecessors, (11972), 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) [2022-12-13 16:28:46,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:46,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:46,643 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:46,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:46,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2031760327, now seen corresponding path program 1 times [2022-12-13 16:28:46,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:46,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249344378] [2022-12-13 16:28:46,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:46,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:47,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:47,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:47,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249344378] [2022-12-13 16:28:47,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249344378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:47,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:47,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:47,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342616913] [2022-12-13 16:28:47,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:47,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:47,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:47,296 INFO L87 Difference]: Start difference. First operand has 6860 states, 6842 states have (on average 1.7497807658579363) internal successors, (11972), 6859 states have internal predecessors, (11972), 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 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:47,924 INFO L93 Difference]: Finished difference Result 13708 states and 23679 transitions. [2022-12-13 16:28:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:47,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:47,967 INFO L225 Difference]: With dead ends: 13708 [2022-12-13 16:28:47,967 INFO L226 Difference]: Without dead ends: 8152 [2022-12-13 16:28:47,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:47,982 INFO L413 NwaCegarLoop]: 13690 mSDtfsCounter, 8105 mSDsluCounter, 5999 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8105 SdHoareTripleChecker+Valid, 19689 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:47,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8105 Valid, 19689 Invalid, 48 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:28:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8152 states. [2022-12-13 16:28:48,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8152 to 8150. [2022-12-13 16:28:48,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8150 states, 8149 states have (on average 1.6725978647686832) internal successors, (13630), 8149 states have internal predecessors, (13630), 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) [2022-12-13 16:28:48,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8150 states to 8150 states and 13630 transitions. [2022-12-13 16:28:48,378 INFO L78 Accepts]: Start accepts. Automaton has 8150 states and 13630 transitions. Word has length 368 [2022-12-13 16:28:48,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:48,378 INFO L495 AbstractCegarLoop]: Abstraction has 8150 states and 13630 transitions. [2022-12-13 16:28:48,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 8150 states and 13630 transitions. [2022-12-13 16:28:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:48,400 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:48,400 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:48,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:28:48,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -774974886, now seen corresponding path program 1 times [2022-12-13 16:28:48,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:48,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963056171] [2022-12-13 16:28:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:48,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:48,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:48,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963056171] [2022-12-13 16:28:48,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963056171] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:48,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:48,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:48,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502369303] [2022-12-13 16:28:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:48,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:48,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:48,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:48,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:48,650 INFO L87 Difference]: Start difference. First operand 8150 states and 13630 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:49,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:49,515 INFO L93 Difference]: Finished difference Result 17811 states and 29863 transitions. [2022-12-13 16:28:49,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:49,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:49,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:49,540 INFO L225 Difference]: With dead ends: 17811 [2022-12-13 16:28:49,540 INFO L226 Difference]: Without dead ends: 10823 [2022-12-13 16:28:49,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:49,550 INFO L413 NwaCegarLoop]: 12903 mSDtfsCounter, 6898 mSDsluCounter, 5962 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6898 SdHoareTripleChecker+Valid, 18865 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:49,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6898 Valid, 18865 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-13 16:28:49,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10823 states. [2022-12-13 16:28:49,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10823 to 10821. [2022-12-13 16:28:49,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10821 states, 10820 states have (on average 1.6684842883548983) internal successors, (18053), 10820 states have internal predecessors, (18053), 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) [2022-12-13 16:28:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10821 states to 10821 states and 18053 transitions. [2022-12-13 16:28:49,885 INFO L78 Accepts]: Start accepts. Automaton has 10821 states and 18053 transitions. Word has length 368 [2022-12-13 16:28:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:49,886 INFO L495 AbstractCegarLoop]: Abstraction has 10821 states and 18053 transitions. [2022-12-13 16:28:49,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 10821 states and 18053 transitions. [2022-12-13 16:28:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:49,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:49,908 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:49,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:28:49,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:49,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash -498494000, now seen corresponding path program 1 times [2022-12-13 16:28:49,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:49,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328635211] [2022-12-13 16:28:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:49,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:50,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:50,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328635211] [2022-12-13 16:28:50,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328635211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:50,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:50,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:50,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793413171] [2022-12-13 16:28:50,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:50,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:50,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:50,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:50,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:50,178 INFO L87 Difference]: Start difference. First operand 10821 states and 18053 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:51,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:51,472 INFO L93 Difference]: Finished difference Result 20290 states and 33786 transitions. [2022-12-13 16:28:51,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:51,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:51,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:51,514 INFO L225 Difference]: With dead ends: 20290 [2022-12-13 16:28:51,514 INFO L226 Difference]: Without dead ends: 18432 [2022-12-13 16:28:51,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:51,524 INFO L413 NwaCegarLoop]: 9223 mSDtfsCounter, 7363 mSDsluCounter, 7266 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7363 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:51,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7363 Valid, 16489 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 16:28:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18432 states. [2022-12-13 16:28:52,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18432 to 18430. [2022-12-13 16:28:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18430 states, 18429 states have (on average 1.660860600141082) internal successors, (30608), 18429 states have internal predecessors, (30608), 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) [2022-12-13 16:28:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18430 states to 18430 states and 30608 transitions. [2022-12-13 16:28:52,078 INFO L78 Accepts]: Start accepts. Automaton has 18430 states and 30608 transitions. Word has length 368 [2022-12-13 16:28:52,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:52,079 INFO L495 AbstractCegarLoop]: Abstraction has 18430 states and 30608 transitions. [2022-12-13 16:28:52,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 18430 states and 30608 transitions. [2022-12-13 16:28:52,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:52,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:52,111 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:52,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:28:52,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash -229485808, now seen corresponding path program 1 times [2022-12-13 16:28:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:52,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326269407] [2022-12-13 16:28:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:52,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:52,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326269407] [2022-12-13 16:28:52,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326269407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:52,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:52,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:52,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677902120] [2022-12-13 16:28:52,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:52,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:52,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:52,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:52,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:52,305 INFO L87 Difference]: Start difference. First operand 18430 states and 30608 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:53,238 INFO L93 Difference]: Finished difference Result 20754 states and 34340 transitions. [2022-12-13 16:28:53,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:53,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:53,268 INFO L225 Difference]: With dead ends: 20754 [2022-12-13 16:28:53,268 INFO L226 Difference]: Without dead ends: 19264 [2022-12-13 16:28:53,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:53,277 INFO L413 NwaCegarLoop]: 10386 mSDtfsCounter, 7367 mSDsluCounter, 5620 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7367 SdHoareTripleChecker+Valid, 16006 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:53,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7367 Valid, 16006 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:28:53,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19264 states. [2022-12-13 16:28:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19264 to 19178. [2022-12-13 16:28:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19178 states, 19177 states have (on average 1.6568806382645878) internal successors, (31774), 19177 states have internal predecessors, (31774), 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) [2022-12-13 16:28:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19178 states to 19178 states and 31774 transitions. [2022-12-13 16:28:53,840 INFO L78 Accepts]: Start accepts. Automaton has 19178 states and 31774 transitions. Word has length 368 [2022-12-13 16:28:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:53,840 INFO L495 AbstractCegarLoop]: Abstraction has 19178 states and 31774 transitions. [2022-12-13 16:28:53,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 19178 states and 31774 transitions. [2022-12-13 16:28:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:53,866 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:53,866 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:53,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:28:53,866 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:53,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:53,867 INFO L85 PathProgramCache]: Analyzing trace with hash -641113627, now seen corresponding path program 1 times [2022-12-13 16:28:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:53,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127838221] [2022-12-13 16:28:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:53,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:54,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:54,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127838221] [2022-12-13 16:28:54,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127838221] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:54,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:54,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:54,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745351587] [2022-12-13 16:28:54,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:54,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:54,272 INFO L87 Difference]: Start difference. First operand 19178 states and 31774 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:54,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:54,941 INFO L93 Difference]: Finished difference Result 45388 states and 75156 transitions. [2022-12-13 16:28:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:54,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:54,978 INFO L225 Difference]: With dead ends: 45388 [2022-12-13 16:28:54,978 INFO L226 Difference]: Without dead ends: 27590 [2022-12-13 16:28:54,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:54,999 INFO L413 NwaCegarLoop]: 12997 mSDtfsCounter, 3989 mSDsluCounter, 9453 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3989 SdHoareTripleChecker+Valid, 22450 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:54,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3989 Valid, 22450 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:28:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27590 states. [2022-12-13 16:28:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27590 to 27256. [2022-12-13 16:28:55,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27256 states, 27255 states have (on average 1.6503393872683911) internal successors, (44980), 27255 states have internal predecessors, (44980), 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) [2022-12-13 16:28:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27256 states to 27256 states and 44980 transitions. [2022-12-13 16:28:55,831 INFO L78 Accepts]: Start accepts. Automaton has 27256 states and 44980 transitions. Word has length 368 [2022-12-13 16:28:55,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:55,831 INFO L495 AbstractCegarLoop]: Abstraction has 27256 states and 44980 transitions. [2022-12-13 16:28:55,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:55,832 INFO L276 IsEmpty]: Start isEmpty. Operand 27256 states and 44980 transitions. [2022-12-13 16:28:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:55,859 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:55,860 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:55,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:28:55,860 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:55,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1593380083, now seen corresponding path program 1 times [2022-12-13 16:28:55,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:55,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040545333] [2022-12-13 16:28:55,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:55,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:56,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:56,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040545333] [2022-12-13 16:28:56,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040545333] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:56,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:56,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:56,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025443402] [2022-12-13 16:28:56,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:56,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:56,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:56,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:56,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:56,209 INFO L87 Difference]: Start difference. First operand 27256 states and 44980 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:57,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:28:57,636 INFO L93 Difference]: Finished difference Result 67562 states and 111787 transitions. [2022-12-13 16:28:57,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:28:57,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:28:57,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:28:57,690 INFO L225 Difference]: With dead ends: 67562 [2022-12-13 16:28:57,690 INFO L226 Difference]: Without dead ends: 43320 [2022-12-13 16:28:57,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:57,713 INFO L413 NwaCegarLoop]: 13201 mSDtfsCounter, 4277 mSDsluCounter, 9514 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 22715 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:28:57,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4277 Valid, 22715 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:28:57,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43320 states. [2022-12-13 16:28:58,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43320 to 40686. [2022-12-13 16:28:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40686 states, 40685 states have (on average 1.6362049895538897) internal successors, (66569), 40685 states have internal predecessors, (66569), 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) [2022-12-13 16:28:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40686 states to 40686 states and 66569 transitions. [2022-12-13 16:28:58,995 INFO L78 Accepts]: Start accepts. Automaton has 40686 states and 66569 transitions. Word has length 368 [2022-12-13 16:28:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:28:58,995 INFO L495 AbstractCegarLoop]: Abstraction has 40686 states and 66569 transitions. [2022-12-13 16:28:58,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:28:58,996 INFO L276 IsEmpty]: Start isEmpty. Operand 40686 states and 66569 transitions. [2022-12-13 16:28:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2022-12-13 16:28:59,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:28:59,034 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:28:59,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:28:59,034 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:28:59,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:28:59,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1927501190, now seen corresponding path program 1 times [2022-12-13 16:28:59,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:28:59,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573972392] [2022-12-13 16:28:59,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:28:59,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:28:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:28:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:28:59,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:28:59,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573972392] [2022-12-13 16:28:59,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573972392] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:28:59,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:28:59,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:28:59,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082520190] [2022-12-13 16:28:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:28:59,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:28:59,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:28:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:28:59,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:28:59,315 INFO L87 Difference]: Start difference. First operand 40686 states and 66569 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:29:00,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:00,163 INFO L93 Difference]: Finished difference Result 59066 states and 97295 transitions. [2022-12-13 16:29:00,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:29:00,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 368 [2022-12-13 16:29:00,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:00,188 INFO L225 Difference]: With dead ends: 59066 [2022-12-13 16:29:00,188 INFO L226 Difference]: Without dead ends: 22872 [2022-12-13 16:29:00,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:29:00,218 INFO L413 NwaCegarLoop]: 7272 mSDtfsCounter, 4739 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4739 SdHoareTripleChecker+Valid, 9734 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:00,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4739 Valid, 9734 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:29:00,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22872 states. [2022-12-13 16:29:01,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22872 to 20886. [2022-12-13 16:29:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20886 states, 20885 states have (on average 1.647737610725401) internal successors, (34413), 20885 states have internal predecessors, (34413), 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) [2022-12-13 16:29:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20886 states to 20886 states and 34413 transitions. [2022-12-13 16:29:01,140 INFO L78 Accepts]: Start accepts. Automaton has 20886 states and 34413 transitions. Word has length 368 [2022-12-13 16:29:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:01,140 INFO L495 AbstractCegarLoop]: Abstraction has 20886 states and 34413 transitions. [2022-12-13 16:29:01,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2022-12-13 16:29:01,141 INFO L276 IsEmpty]: Start isEmpty. Operand 20886 states and 34413 transitions. [2022-12-13 16:29:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-12-13 16:29:01,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:01,166 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:29:01,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:29:01,166 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:29:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:01,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1024903943, now seen corresponding path program 1 times [2022-12-13 16:29:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:01,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441728773] [2022-12-13 16:29:01,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:01,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:29:01,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:01,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441728773] [2022-12-13 16:29:01,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441728773] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:01,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:01,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:29:01,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549715669] [2022-12-13 16:29:01,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:01,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:29:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:01,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:29:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:29:01,446 INFO L87 Difference]: Start difference. First operand 20886 states and 34413 transitions. Second operand has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 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) [2022-12-13 16:29:04,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:04,270 INFO L93 Difference]: Finished difference Result 66483 states and 108576 transitions. [2022-12-13 16:29:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 16:29:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 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 372 [2022-12-13 16:29:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:04,355 INFO L225 Difference]: With dead ends: 66483 [2022-12-13 16:29:04,355 INFO L226 Difference]: Without dead ends: 61697 [2022-12-13 16:29:04,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-12-13 16:29:04,373 INFO L413 NwaCegarLoop]: 7026 mSDtfsCounter, 23437 mSDsluCounter, 19659 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23437 SdHoareTripleChecker+Valid, 26685 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:04,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23437 Valid, 26685 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:29:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61697 states. [2022-12-13 16:29:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61697 to 25415. [2022-12-13 16:29:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25415 states, 25414 states have (on average 1.640906586920595) internal successors, (41702), 25414 states have internal predecessors, (41702), 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) [2022-12-13 16:29:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25415 states to 25415 states and 41702 transitions. [2022-12-13 16:29:06,185 INFO L78 Accepts]: Start accepts. Automaton has 25415 states and 41702 transitions. Word has length 372 [2022-12-13 16:29:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:06,186 INFO L495 AbstractCegarLoop]: Abstraction has 25415 states and 41702 transitions. [2022-12-13 16:29:06,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.142857142857146) internal successors, (372), 7 states have internal predecessors, (372), 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) [2022-12-13 16:29:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 25415 states and 41702 transitions. [2022-12-13 16:29:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:29:06,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:06,212 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:29:06,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:29:06,212 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:29:06,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:06,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1093040572, now seen corresponding path program 1 times [2022-12-13 16:29:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:06,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275903623] [2022-12-13 16:29:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:29:06,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:06,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275903623] [2022-12-13 16:29:06,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275903623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:06,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:06,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 16:29:06,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726859196] [2022-12-13 16:29:06,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:06,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:29:06,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:06,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:29:06,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:29:06,482 INFO L87 Difference]: Start difference. First operand 25415 states and 41702 transitions. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-12-13 16:29:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:09,315 INFO L93 Difference]: Finished difference Result 52485 states and 85713 transitions. [2022-12-13 16:29:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:29:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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 373 [2022-12-13 16:29:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:09,365 INFO L225 Difference]: With dead ends: 52485 [2022-12-13 16:29:09,365 INFO L226 Difference]: Without dead ends: 43451 [2022-12-13 16:29:09,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:29:09,377 INFO L413 NwaCegarLoop]: 7036 mSDtfsCounter, 8431 mSDsluCounter, 6821 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8431 SdHoareTripleChecker+Valid, 13857 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:09,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8431 Valid, 13857 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:29:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43451 states. [2022-12-13 16:29:11,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43451 to 34399. [2022-12-13 16:29:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34399 states, 34398 states have (on average 1.6344554915983487) internal successors, (56222), 34398 states have internal predecessors, (56222), 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) [2022-12-13 16:29:11,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34399 states to 34399 states and 56222 transitions. [2022-12-13 16:29:11,613 INFO L78 Accepts]: Start accepts. Automaton has 34399 states and 56222 transitions. Word has length 373 [2022-12-13 16:29:11,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:11,614 INFO L495 AbstractCegarLoop]: Abstraction has 34399 states and 56222 transitions. [2022-12-13 16:29:11,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2022-12-13 16:29:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand 34399 states and 56222 transitions. [2022-12-13 16:29:11,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:29:11,630 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:11,631 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:29:11,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:29:11,631 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:29:11,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:11,631 INFO L85 PathProgramCache]: Analyzing trace with hash -913707892, now seen corresponding path program 1 times [2022-12-13 16:29:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:11,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569559424] [2022-12-13 16:29:11,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:11,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:29:11,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:11,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569559424] [2022-12-13 16:29:11,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569559424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:11,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:11,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:29:11,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760182170] [2022-12-13 16:29:11,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:11,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:29:11,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:11,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:29:11,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:29:11,912 INFO L87 Difference]: Start difference. First operand 34399 states and 56222 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:29:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:20,242 INFO L93 Difference]: Finished difference Result 124435 states and 202236 transitions. [2022-12-13 16:29:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:29:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 373 [2022-12-13 16:29:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:20,400 INFO L225 Difference]: With dead ends: 124435 [2022-12-13 16:29:20,400 INFO L226 Difference]: Without dead ends: 106433 [2022-12-13 16:29:20,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:29:20,425 INFO L413 NwaCegarLoop]: 7728 mSDtfsCounter, 16745 mSDsluCounter, 17311 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16745 SdHoareTripleChecker+Valid, 25039 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:20,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16745 Valid, 25039 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:29:20,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106433 states. [2022-12-13 16:29:25,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106433 to 52383. [2022-12-13 16:29:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52383 states, 52382 states have (on average 1.6292237791607804) internal successors, (85342), 52382 states have internal predecessors, (85342), 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) [2022-12-13 16:29:25,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52383 states to 52383 states and 85342 transitions. [2022-12-13 16:29:25,626 INFO L78 Accepts]: Start accepts. Automaton has 52383 states and 85342 transitions. Word has length 373 [2022-12-13 16:29:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:25,627 INFO L495 AbstractCegarLoop]: Abstraction has 52383 states and 85342 transitions. [2022-12-13 16:29:25,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:29:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 52383 states and 85342 transitions. [2022-12-13 16:29:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:29:25,643 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:25,643 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:29:25,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:29:25,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:29:25,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1660071515, now seen corresponding path program 1 times [2022-12-13 16:29:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:25,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022188964] [2022-12-13 16:29:25,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:29:25,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:25,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022188964] [2022-12-13 16:29:25,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022188964] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:25,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:25,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:29:25,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297648928] [2022-12-13 16:29:25,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:25,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:29:25,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:25,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:29:25,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:29:25,925 INFO L87 Difference]: Start difference. First operand 52383 states and 85342 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:29:36,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:36,629 INFO L93 Difference]: Finished difference Result 142436 states and 231373 transitions. [2022-12-13 16:29:36,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:29:36,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 373 [2022-12-13 16:29:36,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:36,810 INFO L225 Difference]: With dead ends: 142436 [2022-12-13 16:29:36,810 INFO L226 Difference]: Without dead ends: 124434 [2022-12-13 16:29:36,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:29:36,838 INFO L413 NwaCegarLoop]: 7986 mSDtfsCounter, 16334 mSDsluCounter, 21701 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16334 SdHoareTripleChecker+Valid, 29687 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:36,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16334 Valid, 29687 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:29:36,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124434 states. [2022-12-13 16:29:43,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124434 to 79392. [2022-12-13 16:29:43,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79392 states, 79391 states have (on average 1.6251590230630677) internal successors, (129023), 79391 states have internal predecessors, (129023), 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) [2022-12-13 16:29:44,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79392 states to 79392 states and 129023 transitions. [2022-12-13 16:29:44,005 INFO L78 Accepts]: Start accepts. Automaton has 79392 states and 129023 transitions. Word has length 373 [2022-12-13 16:29:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:29:44,006 INFO L495 AbstractCegarLoop]: Abstraction has 79392 states and 129023 transitions. [2022-12-13 16:29:44,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:29:44,006 INFO L276 IsEmpty]: Start isEmpty. Operand 79392 states and 129023 transitions. [2022-12-13 16:29:44,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:29:44,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:29:44,024 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:29:44,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:29:44,024 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:29:44,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:29:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1626815138, now seen corresponding path program 1 times [2022-12-13 16:29:44,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:29:44,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889245879] [2022-12-13 16:29:44,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:29:44,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:29:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:29:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:29:44,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:29:44,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889245879] [2022-12-13 16:29:44,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889245879] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:29:44,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:29:44,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:29:44,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636991487] [2022-12-13 16:29:44,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:29:44,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:29:44,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:29:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:29:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:29:44,475 INFO L87 Difference]: Start difference. First operand 79392 states and 129023 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:29:58,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:29:58,374 INFO L93 Difference]: Finished difference Result 223438 states and 361416 transitions. [2022-12-13 16:29:58,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:29:58,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 373 [2022-12-13 16:29:58,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:29:58,591 INFO L225 Difference]: With dead ends: 223438 [2022-12-13 16:29:58,591 INFO L226 Difference]: Without dead ends: 146090 [2022-12-13 16:29:58,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:29:58,641 INFO L413 NwaCegarLoop]: 8387 mSDtfsCounter, 5151 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 12930 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 16:29:58,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5151 Valid, 12930 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 16:29:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146090 states. [2022-12-13 16:30:12,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146090 to 132048. [2022-12-13 16:30:12,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132048 states, 132047 states have (on average 1.6057918771346567) internal successors, (212040), 132047 states have internal predecessors, (212040), 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) [2022-12-13 16:30:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132048 states to 132048 states and 212040 transitions. [2022-12-13 16:30:13,079 INFO L78 Accepts]: Start accepts. Automaton has 132048 states and 212040 transitions. Word has length 373 [2022-12-13 16:30:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:30:13,079 INFO L495 AbstractCegarLoop]: Abstraction has 132048 states and 212040 transitions. [2022-12-13 16:30:13,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:30:13,080 INFO L276 IsEmpty]: Start isEmpty. Operand 132048 states and 212040 transitions. [2022-12-13 16:30:13,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:30:13,109 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:30:13,109 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:13,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:30:13,110 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:30:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash 825945367, now seen corresponding path program 1 times [2022-12-13 16:30:13,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:13,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566460329] [2022-12-13 16:30:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:13,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:13,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566460329] [2022-12-13 16:30:13,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566460329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:13,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:13,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:13,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617092205] [2022-12-13 16:30:13,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:13,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:13,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:13,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:13,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:13,533 INFO L87 Difference]: Start difference. First operand 132048 states and 212040 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:30:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:30:26,830 INFO L93 Difference]: Finished difference Result 259668 states and 417042 transitions. [2022-12-13 16:30:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:26,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 373 [2022-12-13 16:30:26,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:30:27,035 INFO L225 Difference]: With dead ends: 259668 [2022-12-13 16:30:27,035 INFO L226 Difference]: Without dead ends: 132034 [2022-12-13 16:30:27,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:27,110 INFO L413 NwaCegarLoop]: 8161 mSDtfsCounter, 4613 mSDsluCounter, 4508 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 12669 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:30:27,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4613 Valid, 12669 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:30:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132034 states. [2022-12-13 16:30:39,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132034 to 132032. [2022-12-13 16:30:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132032 states, 132031 states have (on average 1.6011391264172807) internal successors, (211400), 132031 states have internal predecessors, (211400), 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) [2022-12-13 16:30:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132032 states to 132032 states and 211400 transitions. [2022-12-13 16:30:40,211 INFO L78 Accepts]: Start accepts. Automaton has 132032 states and 211400 transitions. Word has length 373 [2022-12-13 16:30:40,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:30:40,211 INFO L495 AbstractCegarLoop]: Abstraction has 132032 states and 211400 transitions. [2022-12-13 16:30:40,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:30:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 132032 states and 211400 transitions. [2022-12-13 16:30:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:30:40,235 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:30:40,235 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:40,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:30:40,235 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:30:40,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:40,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2106174797, now seen corresponding path program 1 times [2022-12-13 16:30:40,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:40,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066767478] [2022-12-13 16:30:40,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:40,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:40,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:40,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066767478] [2022-12-13 16:30:40,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066767478] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:40,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:40,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:40,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865466104] [2022-12-13 16:30:40,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:40,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:40,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:40,472 INFO L87 Difference]: Start difference. First operand 132032 states and 211400 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:30:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:30:47,652 INFO L93 Difference]: Finished difference Result 198742 states and 318588 transitions. [2022-12-13 16:30:47,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:47,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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 373 [2022-12-13 16:30:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:30:47,747 INFO L225 Difference]: With dead ends: 198742 [2022-12-13 16:30:47,748 INFO L226 Difference]: Without dead ends: 69772 [2022-12-13 16:30:47,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:47,816 INFO L413 NwaCegarLoop]: 6936 mSDtfsCounter, 1461 mSDsluCounter, 5548 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 12484 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:30:47,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 12484 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:30:47,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69772 states. [2022-12-13 16:30:54,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69772 to 69770. [2022-12-13 16:30:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69770 states, 69769 states have (on average 1.6016282303028566) internal successors, (111744), 69769 states have internal predecessors, (111744), 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) [2022-12-13 16:30:54,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69770 states to 69770 states and 111744 transitions. [2022-12-13 16:30:54,443 INFO L78 Accepts]: Start accepts. Automaton has 69770 states and 111744 transitions. Word has length 373 [2022-12-13 16:30:54,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:30:54,443 INFO L495 AbstractCegarLoop]: Abstraction has 69770 states and 111744 transitions. [2022-12-13 16:30:54,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2022-12-13 16:30:54,444 INFO L276 IsEmpty]: Start isEmpty. Operand 69770 states and 111744 transitions. [2022-12-13 16:30:54,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:30:54,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:30:54,460 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:54,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:30:54,460 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:30:54,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:54,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1490475655, now seen corresponding path program 1 times [2022-12-13 16:30:54,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:54,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854423860] [2022-12-13 16:30:54,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:54,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:55,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:55,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854423860] [2022-12-13 16:30:55,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854423860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:55,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:55,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:30:55,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244441742] [2022-12-13 16:30:55,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:55,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:30:55,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:55,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:30:55,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:30:55,563 INFO L87 Difference]: Start difference. First operand 69770 states and 111744 transitions. Second operand has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 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) [2022-12-13 16:31:29,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:31:29,329 INFO L93 Difference]: Finished difference Result 284446 states and 451681 transitions. [2022-12-13 16:31:29,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:31:29,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 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 373 [2022-12-13 16:31:29,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:31:29,741 INFO L225 Difference]: With dead ends: 284446 [2022-12-13 16:31:29,741 INFO L226 Difference]: Without dead ends: 240434 [2022-12-13 16:31:29,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:31:29,807 INFO L413 NwaCegarLoop]: 8243 mSDtfsCounter, 15977 mSDsluCounter, 22615 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15977 SdHoareTripleChecker+Valid, 30858 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 16:31:29,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15977 Valid, 30858 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 16:31:29,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240434 states. [2022-12-13 16:31:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240434 to 182532. [2022-12-13 16:31:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182532 states, 182531 states have (on average 1.5933183952314949) internal successors, (290830), 182531 states have internal predecessors, (290830), 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) [2022-12-13 16:31:56,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182532 states to 182532 states and 290830 transitions. [2022-12-13 16:31:56,974 INFO L78 Accepts]: Start accepts. Automaton has 182532 states and 290830 transitions. Word has length 373 [2022-12-13 16:31:56,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:31:56,975 INFO L495 AbstractCegarLoop]: Abstraction has 182532 states and 290830 transitions. [2022-12-13 16:31:56,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 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) [2022-12-13 16:31:56,975 INFO L276 IsEmpty]: Start isEmpty. Operand 182532 states and 290830 transitions. [2022-12-13 16:31:56,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:31:56,990 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:31:56,990 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:31:56,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:31:56,990 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:31:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:31:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash -95741352, now seen corresponding path program 1 times [2022-12-13 16:31:56,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:31:56,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963817436] [2022-12-13 16:31:56,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:31:56,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:31:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:31:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:31:57,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:31:57,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963817436] [2022-12-13 16:31:57,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963817436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:31:57,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:31:57,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:31:57,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363225975] [2022-12-13 16:31:57,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:31:57,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:31:57,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:31:57,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:31:57,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:31:57,266 INFO L87 Difference]: Start difference. First operand 182532 states and 290830 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:32:52,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:32:52,115 INFO L93 Difference]: Finished difference Result 398680 states and 635536 transitions. [2022-12-13 16:32:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:32:52,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 373 [2022-12-13 16:32:52,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:32:52,723 INFO L225 Difference]: With dead ends: 398680 [2022-12-13 16:32:52,723 INFO L226 Difference]: Without dead ends: 347454 [2022-12-13 16:32:52,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:32:52,837 INFO L413 NwaCegarLoop]: 6834 mSDtfsCounter, 14832 mSDsluCounter, 14592 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14832 SdHoareTripleChecker+Valid, 21426 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:32:52,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14832 Valid, 21426 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:32:53,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347454 states. [2022-12-13 16:33:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347454 to 226532. [2022-12-13 16:33:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226532 states, 226531 states have (on average 1.592673850378094) internal successors, (360790), 226531 states have internal predecessors, (360790), 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) [2022-12-13 16:33:29,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226532 states to 226532 states and 360790 transitions. [2022-12-13 16:33:29,845 INFO L78 Accepts]: Start accepts. Automaton has 226532 states and 360790 transitions. Word has length 373 [2022-12-13 16:33:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:33:29,846 INFO L495 AbstractCegarLoop]: Abstraction has 226532 states and 360790 transitions. [2022-12-13 16:33:29,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:33:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 226532 states and 360790 transitions. [2022-12-13 16:33:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:33:29,861 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:33:29,861 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:33:29,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:33:29,862 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:33:29,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:33:29,862 INFO L85 PathProgramCache]: Analyzing trace with hash -2033139560, now seen corresponding path program 1 times [2022-12-13 16:33:29,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:33:29,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907837945] [2022-12-13 16:33:29,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:33:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:33:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:33:30,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:33:30,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:33:30,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907837945] [2022-12-13 16:33:30,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907837945] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:33:30,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:33:30,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 16:33:30,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333440431] [2022-12-13 16:33:30,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:33:30,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 16:33:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:33:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 16:33:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 16:33:30,101 INFO L87 Difference]: Start difference. First operand 226532 states and 360790 transitions. Second operand has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:34:35,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:34:35,506 INFO L93 Difference]: Finished difference Result 442692 states and 705508 transitions. [2022-12-13 16:34:35,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:34:35,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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 373 [2022-12-13 16:34:35,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:34:36,163 INFO L225 Difference]: With dead ends: 442692 [2022-12-13 16:34:36,163 INFO L226 Difference]: Without dead ends: 391466 [2022-12-13 16:34:36,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:34:36,334 INFO L413 NwaCegarLoop]: 6857 mSDtfsCounter, 15314 mSDsluCounter, 14235 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15314 SdHoareTripleChecker+Valid, 21092 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 16:34:36,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15314 Valid, 21092 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 16:34:36,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391466 states. [2022-12-13 16:35:23,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391466 to 270544. [2022-12-13 16:35:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270544 states, 270543 states have (on average 1.5922126981662803) internal successors, (430762), 270543 states have internal predecessors, (430762), 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) [2022-12-13 16:35:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270544 states to 270544 states and 430762 transitions. [2022-12-13 16:35:24,278 INFO L78 Accepts]: Start accepts. Automaton has 270544 states and 430762 transitions. Word has length 373 [2022-12-13 16:35:24,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:35:24,279 INFO L495 AbstractCegarLoop]: Abstraction has 270544 states and 430762 transitions. [2022-12-13 16:35:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.285714285714285) internal successors, (373), 7 states have internal predecessors, (373), 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) [2022-12-13 16:35:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 270544 states and 430762 transitions. [2022-12-13 16:35:24,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-12-13 16:35:24,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:35:24,295 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:35:24,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:35:24,295 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:35:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:35:24,296 INFO L85 PathProgramCache]: Analyzing trace with hash -246096839, now seen corresponding path program 1 times [2022-12-13 16:35:24,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:35:24,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148992858] [2022-12-13 16:35:24,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:35:24,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:35:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:35:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:35:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:35:25,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148992858] [2022-12-13 16:35:25,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148992858] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:35:25,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:35:25,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:35:25,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515338522] [2022-12-13 16:35:25,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:35:25,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 16:35:25,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:35:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 16:35:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-13 16:35:25,222 INFO L87 Difference]: Start difference. First operand 270544 states and 430762 transitions. Second operand has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 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) [2022-12-13 16:38:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:38:54,167 INFO L93 Difference]: Finished difference Result 1322834 states and 2097229 transitions. [2022-12-13 16:38:54,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 16:38:54,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.625) internal successors, (373), 8 states have internal predecessors, (373), 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 373 [2022-12-13 16:38:54,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:38:56,406 INFO L225 Difference]: With dead ends: 1322834 [2022-12-13 16:38:56,406 INFO L226 Difference]: Without dead ends: 1063192 [2022-12-13 16:38:56,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2022-12-13 16:38:56,793 INFO L413 NwaCegarLoop]: 7418 mSDtfsCounter, 22062 mSDsluCounter, 14362 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22062 SdHoareTripleChecker+Valid, 21780 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 16:38:56,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22062 Valid, 21780 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 16:38:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063192 states.