./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 755ab1a46ae9bd419f57fa80d8e9c25878a5804529700435e5fe8941ed66455d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:00:47,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:00:47,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:00:47,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:00:47,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:00:47,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:00:47,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:00:47,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:00:47,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:00:47,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:00:47,904 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:00:47,905 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:00:47,905 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:00:47,905 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:00:47,905 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:00:47,905 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:00:47,905 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:00:47,906 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:00:47,906 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:00:47,907 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:00:47,908 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:00:47,908 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:00:47,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:00:47,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:00:47,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:00:47,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:47,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:00:47,911 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:00:47,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:00:47,913 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 755ab1a46ae9bd419f57fa80d8e9c25878a5804529700435e5fe8941ed66455d [2024-11-14 03:00:48,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:00:48,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:00:48,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:00:48,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:00:48,324 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:00:48,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c Unable to find full path for "g++" [2024-11-14 03:00:50,700 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:00:51,401 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:00:51,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-14 03:00:51,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/data/6ad122ddf/691163046f4a4795a4748b0f1db8c278/FLAG65a3956d8 [2024-11-14 03:00:51,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/data/6ad122ddf/691163046f4a4795a4748b0f1db8c278 [2024-11-14 03:00:51,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:00:51,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:00:51,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:51,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:00:51,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:00:51,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db3fa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:51, skipping insertion in model container [2024-11-14 03:00:51,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:00:51" (1/1) ... [2024-11-14 03:00:51,684 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:00:52,275 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[14256,14269] [2024-11-14 03:00:52,325 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20101,20114] [2024-11-14 03:00:52,335 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[21333,21346] [2024-11-14 03:00:52,353 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23565,23578] [2024-11-14 03:00:52,378 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26974,26987] [2024-11-14 03:00:52,439 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[33563,33576] [2024-11-14 03:00:53,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:53,289 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:00:53,384 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[14256,14269] [2024-11-14 03:00:53,406 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20101,20114] [2024-11-14 03:00:53,415 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[21333,21346] [2024-11-14 03:00:53,438 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23565,23578] [2024-11-14 03:00:53,457 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[26974,26987] [2024-11-14 03:00:53,489 WARN L250 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_cc052668-2c1c-4afd-8d30-2630de0ec166/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[33563,33576] [2024-11-14 03:00:54,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:00:54,176 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:00:54,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54 WrapperNode [2024-11-14 03:00:54,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:00:54,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:54,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:00:54,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:00:54,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,592 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10106 [2024-11-14 03:00:54,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:00:54,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:00:54,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:00:54,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:00:54,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:00:54,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:00:54,931 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:00:54,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:00:54,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (1/1) ... [2024-11-14 03:00:54,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:00:54,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:54,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:00:54,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc052668-2c1c-4afd-8d30-2630de0ec166/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:00:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:00:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:00:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:00:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:00:55,671 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:00:55,674 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:01:03,675 INFO L? ?]: Removed 1497 outVars from TransFormulas that were not future-live. [2024-11-14 03:01:03,676 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:01:04,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:01:04,504 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:01:04,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:04 BoogieIcfgContainer [2024-11-14 03:01:04,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:01:04,508 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:01:04,509 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:01:04,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:01:04,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:00:51" (1/3) ... [2024-11-14 03:01:04,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8cee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:04, skipping insertion in model container [2024-11-14 03:01:04,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:00:54" (2/3) ... [2024-11-14 03:01:04,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8cee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:04, skipping insertion in model container [2024-11-14 03:01:04,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:04" (3/3) ... [2024-11-14 03:01:04,518 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2024-11-14 03:01:04,539 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:01:04,543 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c that has 1 procedures, 1704 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-14 03:01:04,687 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:01:04,702 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@411a5308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:01:04,702 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 03:01:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 1704 states, 1697 states have (on average 1.8002357100766058) internal successors, (3055), 1703 states have internal predecessors, (3055), 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) [2024-11-14 03:01:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:01:04,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:04,749 INFO L215 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] [2024-11-14 03:01:04,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:04,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:04,756 INFO L85 PathProgramCache]: Analyzing trace with hash -172755925, now seen corresponding path program 1 times [2024-11-14 03:01:04,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:04,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971180603] [2024-11-14 03:01:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:04,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:05,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:05,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971180603] [2024-11-14 03:01:05,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971180603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:05,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:05,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888256177] [2024-11-14 03:01:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:05,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:05,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:05,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:05,628 INFO L87 Difference]: Start difference. First operand has 1704 states, 1697 states have (on average 1.8002357100766058) internal successors, (3055), 1703 states have internal predecessors, (3055), 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 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-14 03:01:06,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:06,343 INFO L93 Difference]: Finished difference Result 2389 states and 4199 transitions. [2024-11-14 03:01:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:06,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2024-11-14 03:01:06,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:06,390 INFO L225 Difference]: With dead ends: 2389 [2024-11-14 03:01:06,390 INFO L226 Difference]: Without dead ends: 2233 [2024-11-14 03:01:06,395 INFO L431 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 [2024-11-14 03:01:06,405 INFO L432 NwaCegarLoop]: 3529 mSDtfsCounter, 1817 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 5452 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:06,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 5452 Invalid, 217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [95 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:01:06,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2233 states. [2024-11-14 03:01:06,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2233 to 2223. [2024-11-14 03:01:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 2217 states have (on average 1.2877762742444745) internal successors, (2855), 2222 states have internal predecessors, (2855), 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) [2024-11-14 03:01:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2855 transitions. [2024-11-14 03:01:06,595 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2855 transitions. Word has length 75 [2024-11-14 03:01:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:06,596 INFO L471 AbstractCegarLoop]: Abstraction has 2223 states and 2855 transitions. [2024-11-14 03:01:06,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-14 03:01:06,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2855 transitions. [2024-11-14 03:01:06,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:01:06,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:06,604 INFO L215 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] [2024-11-14 03:01:06,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:01:06,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:06,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:06,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1644069307, now seen corresponding path program 1 times [2024-11-14 03:01:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:06,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105202926] [2024-11-14 03:01:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:06,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:07,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:07,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105202926] [2024-11-14 03:01:07,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105202926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:07,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:07,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:07,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630886013] [2024-11-14 03:01:07,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:07,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:07,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:07,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:07,097 INFO L87 Difference]: Start difference. First operand 2223 states and 2855 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-14 03:01:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:07,433 INFO L93 Difference]: Finished difference Result 2998 states and 3955 transitions. [2024-11-14 03:01:07,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:07,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2024-11-14 03:01:07,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:07,450 INFO L225 Difference]: With dead ends: 2998 [2024-11-14 03:01:07,450 INFO L226 Difference]: Without dead ends: 2621 [2024-11-14 03:01:07,453 INFO L431 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 [2024-11-14 03:01:07,457 INFO L432 NwaCegarLoop]: 2232 mSDtfsCounter, 1128 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:07,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1128 Valid, 3562 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:01:07,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2621 states. [2024-11-14 03:01:07,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2621 to 2611. [2024-11-14 03:01:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2605 states have (on average 1.307101727447217) internal successors, (3405), 2610 states have internal predecessors, (3405), 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) [2024-11-14 03:01:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3405 transitions. [2024-11-14 03:01:07,568 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3405 transitions. Word has length 75 [2024-11-14 03:01:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:07,571 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3405 transitions. [2024-11-14 03:01:07,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2024-11-14 03:01:07,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3405 transitions. [2024-11-14 03:01:07,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:01:07,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:07,581 INFO L215 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] [2024-11-14 03:01:07,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:01:07,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:07,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:07,586 INFO L85 PathProgramCache]: Analyzing trace with hash 281280943, now seen corresponding path program 1 times [2024-11-14 03:01:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:07,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925304679] [2024-11-14 03:01:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:07,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:08,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:08,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925304679] [2024-11-14 03:01:08,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925304679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:08,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:08,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:08,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505436356] [2024-11-14 03:01:08,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:08,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:08,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:08,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:08,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:08,089 INFO L87 Difference]: Start difference. First operand 2611 states and 3405 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-11-14 03:01:09,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:09,789 INFO L93 Difference]: Finished difference Result 4650 states and 6214 transitions. [2024-11-14 03:01:09,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:01:09,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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 75 [2024-11-14 03:01:09,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:09,804 INFO L225 Difference]: With dead ends: 4650 [2024-11-14 03:01:09,804 INFO L226 Difference]: Without dead ends: 2641 [2024-11-14 03:01:09,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:09,813 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 5352 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5352 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:09,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5352 Valid, 1124 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:01:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2024-11-14 03:01:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2631. [2024-11-14 03:01:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2625 states have (on average 1.3455238095238096) internal successors, (3532), 2630 states have internal predecessors, (3532), 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) [2024-11-14 03:01:09,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3532 transitions. [2024-11-14 03:01:09,914 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3532 transitions. Word has length 75 [2024-11-14 03:01:09,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:09,914 INFO L471 AbstractCegarLoop]: Abstraction has 2631 states and 3532 transitions. [2024-11-14 03:01:09,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 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) [2024-11-14 03:01:09,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3532 transitions. [2024-11-14 03:01:09,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:01:09,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:09,922 INFO L215 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] [2024-11-14 03:01:09,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:01:09,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:09,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:09,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1643166464, now seen corresponding path program 1 times [2024-11-14 03:01:09,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:09,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407523098] [2024-11-14 03:01:09,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:09,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:10,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:10,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407523098] [2024-11-14 03:01:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407523098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:10,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:10,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:10,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004597478] [2024-11-14 03:01:10,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:10,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:10,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:10,310 INFO L87 Difference]: Start difference. First operand 2631 states and 3532 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-14 03:01:11,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:11,569 INFO L93 Difference]: Finished difference Result 5389 states and 7377 transitions. [2024-11-14 03:01:11,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:01:11,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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 76 [2024-11-14 03:01:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:11,584 INFO L225 Difference]: With dead ends: 5389 [2024-11-14 03:01:11,584 INFO L226 Difference]: Without dead ends: 3200 [2024-11-14 03:01:11,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:11,588 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 4210 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4210 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:11,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4210 Valid, 892 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:01:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2024-11-14 03:01:11,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3190. [2024-11-14 03:01:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 3184 states have (on average 1.3693467336683418) internal successors, (4360), 3189 states have internal predecessors, (4360), 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) [2024-11-14 03:01:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 4360 transitions. [2024-11-14 03:01:11,690 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 4360 transitions. Word has length 76 [2024-11-14 03:01:11,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:11,692 INFO L471 AbstractCegarLoop]: Abstraction has 3190 states and 4360 transitions. [2024-11-14 03:01:11,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-11-14 03:01:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 4360 transitions. [2024-11-14 03:01:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:01:11,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:11,700 INFO L215 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] [2024-11-14 03:01:11,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:01:11,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:11,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:11,702 INFO L85 PathProgramCache]: Analyzing trace with hash -867968266, now seen corresponding path program 1 times [2024-11-14 03:01:11,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:11,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682520154] [2024-11-14 03:01:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:11,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:11,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:11,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682520154] [2024-11-14 03:01:11,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682520154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:11,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:11,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77590695] [2024-11-14 03:01:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:11,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:11,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:11,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:11,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:11,906 INFO L87 Difference]: Start difference. First operand 3190 states and 4360 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:12,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:12,133 INFO L93 Difference]: Finished difference Result 6732 states and 9309 transitions. [2024-11-14 03:01:12,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:12,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-14 03:01:12,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:12,157 INFO L225 Difference]: With dead ends: 6732 [2024-11-14 03:01:12,157 INFO L226 Difference]: Without dead ends: 4959 [2024-11-14 03:01:12,160 INFO L431 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 [2024-11-14 03:01:12,163 INFO L432 NwaCegarLoop]: 1650 mSDtfsCounter, 1039 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:12,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 2498 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4959 states. [2024-11-14 03:01:12,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4959 to 4949. [2024-11-14 03:01:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4949 states, 4943 states have (on average 1.3667813068986445) internal successors, (6756), 4948 states have internal predecessors, (6756), 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) [2024-11-14 03:01:12,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4949 states to 4949 states and 6756 transitions. [2024-11-14 03:01:12,316 INFO L78 Accepts]: Start accepts. Automaton has 4949 states and 6756 transitions. Word has length 77 [2024-11-14 03:01:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:12,317 INFO L471 AbstractCegarLoop]: Abstraction has 4949 states and 6756 transitions. [2024-11-14 03:01:12,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:12,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4949 states and 6756 transitions. [2024-11-14 03:01:12,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:01:12,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:12,326 INFO L215 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] [2024-11-14 03:01:12,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:01:12,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:12,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:12,327 INFO L85 PathProgramCache]: Analyzing trace with hash 532148261, now seen corresponding path program 1 times [2024-11-14 03:01:12,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:12,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024996608] [2024-11-14 03:01:12,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:12,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:12,510 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:12,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024996608] [2024-11-14 03:01:12,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024996608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:12,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:12,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:12,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393877994] [2024-11-14 03:01:12,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:12,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:12,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:12,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:12,516 INFO L87 Difference]: Start difference. First operand 4949 states and 6756 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:12,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:12,655 INFO L93 Difference]: Finished difference Result 10728 states and 14799 transitions. [2024-11-14 03:01:12,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:12,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-14 03:01:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:12,684 INFO L225 Difference]: With dead ends: 10728 [2024-11-14 03:01:12,684 INFO L226 Difference]: Without dead ends: 7737 [2024-11-14 03:01:12,689 INFO L431 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 [2024-11-14 03:01:12,691 INFO L432 NwaCegarLoop]: 1672 mSDtfsCounter, 1059 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:12,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2516 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7737 states. [2024-11-14 03:01:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7737 to 7727. [2024-11-14 03:01:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7727 states, 7721 states have (on average 1.3636834606916202) internal successors, (10529), 7726 states have internal predecessors, (10529), 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) [2024-11-14 03:01:12,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7727 states to 7727 states and 10529 transitions. [2024-11-14 03:01:12,947 INFO L78 Accepts]: Start accepts. Automaton has 7727 states and 10529 transitions. Word has length 77 [2024-11-14 03:01:12,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:12,947 INFO L471 AbstractCegarLoop]: Abstraction has 7727 states and 10529 transitions. [2024-11-14 03:01:12,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:12,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7727 states and 10529 transitions. [2024-11-14 03:01:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:01:12,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:12,957 INFO L215 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] [2024-11-14 03:01:12,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:01:12,958 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:12,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 413664227, now seen corresponding path program 1 times [2024-11-14 03:01:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:12,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077665154] [2024-11-14 03:01:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:13,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:13,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077665154] [2024-11-14 03:01:13,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077665154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:13,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601904437] [2024-11-14 03:01:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:13,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:13,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:13,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:13,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:13,111 INFO L87 Difference]: Start difference. First operand 7727 states and 10529 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:13,235 INFO L93 Difference]: Finished difference Result 18134 states and 25082 transitions. [2024-11-14 03:01:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:13,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2024-11-14 03:01:13,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:13,282 INFO L225 Difference]: With dead ends: 18134 [2024-11-14 03:01:13,282 INFO L226 Difference]: Without dead ends: 12191 [2024-11-14 03:01:13,292 INFO L431 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 [2024-11-14 03:01:13,293 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 664 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:13,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 2136 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12191 states. [2024-11-14 03:01:13,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12191 to 12181. [2024-11-14 03:01:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12181 states, 12175 states have (on average 1.3685420944558522) internal successors, (16662), 12180 states have internal predecessors, (16662), 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) [2024-11-14 03:01:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12181 states to 12181 states and 16662 transitions. [2024-11-14 03:01:13,595 INFO L78 Accepts]: Start accepts. Automaton has 12181 states and 16662 transitions. Word has length 77 [2024-11-14 03:01:13,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:13,595 INFO L471 AbstractCegarLoop]: Abstraction has 12181 states and 16662 transitions. [2024-11-14 03:01:13,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-14 03:01:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 12181 states and 16662 transitions. [2024-11-14 03:01:13,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:01:13,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:13,609 INFO L215 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] [2024-11-14 03:01:13,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:01:13,609 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:13,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:13,609 INFO L85 PathProgramCache]: Analyzing trace with hash 354976211, now seen corresponding path program 1 times [2024-11-14 03:01:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:13,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126387436] [2024-11-14 03:01:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:14,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126387436] [2024-11-14 03:01:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126387436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:14,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:14,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:14,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308584544] [2024-11-14 03:01:14,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:14,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:14,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:14,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:14,011 INFO L87 Difference]: Start difference. First operand 12181 states and 16662 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-14 03:01:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:15,185 INFO L93 Difference]: Finished difference Result 30002 states and 41316 transitions. [2024-11-14 03:01:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:01:15,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 77 [2024-11-14 03:01:15,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:15,242 INFO L225 Difference]: With dead ends: 30002 [2024-11-14 03:01:15,243 INFO L226 Difference]: Without dead ends: 18787 [2024-11-14 03:01:15,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:15,259 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 3618 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3618 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:15,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3618 Valid, 757 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:01:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2024-11-14 03:01:15,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 18777. [2024-11-14 03:01:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18777 states, 18771 states have (on average 1.3683341324383358) internal successors, (25685), 18776 states have internal predecessors, (25685), 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) [2024-11-14 03:01:15,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18777 states to 18777 states and 25685 transitions. [2024-11-14 03:01:15,621 INFO L78 Accepts]: Start accepts. Automaton has 18777 states and 25685 transitions. Word has length 77 [2024-11-14 03:01:15,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:15,622 INFO L471 AbstractCegarLoop]: Abstraction has 18777 states and 25685 transitions. [2024-11-14 03:01:15,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-14 03:01:15,622 INFO L276 IsEmpty]: Start isEmpty. Operand 18777 states and 25685 transitions. [2024-11-14 03:01:15,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:01:15,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:15,636 INFO L215 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] [2024-11-14 03:01:15,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:01:15,636 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:15,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2035237967, now seen corresponding path program 1 times [2024-11-14 03:01:15,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:15,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573318855] [2024-11-14 03:01:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:15,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:15,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573318855] [2024-11-14 03:01:15,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573318855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083556468] [2024-11-14 03:01:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:15,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:15,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:15,977 INFO L87 Difference]: Start difference. First operand 18777 states and 25685 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:17,894 INFO L93 Difference]: Finished difference Result 46082 states and 63514 transitions. [2024-11-14 03:01:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2024-11-14 03:01:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:18,017 INFO L225 Difference]: With dead ends: 46082 [2024-11-14 03:01:18,018 INFO L226 Difference]: Without dead ends: 39467 [2024-11-14 03:01:18,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:18,035 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 4598 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:18,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4598 Valid, 1571 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 03:01:18,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39467 states. [2024-11-14 03:01:18,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39467 to 18825. [2024-11-14 03:01:18,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18825 states, 18819 states have (on average 1.3682448589191774) internal successors, (25749), 18824 states have internal predecessors, (25749), 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) [2024-11-14 03:01:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18825 states to 18825 states and 25749 transitions. [2024-11-14 03:01:18,506 INFO L78 Accepts]: Start accepts. Automaton has 18825 states and 25749 transitions. Word has length 78 [2024-11-14 03:01:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:18,506 INFO L471 AbstractCegarLoop]: Abstraction has 18825 states and 25749 transitions. [2024-11-14 03:01:18,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 18825 states and 25749 transitions. [2024-11-14 03:01:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:01:18,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:18,520 INFO L215 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] [2024-11-14 03:01:18,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:01:18,520 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:18,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash 139680224, now seen corresponding path program 1 times [2024-11-14 03:01:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:18,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883613283] [2024-11-14 03:01:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:18,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:18,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883613283] [2024-11-14 03:01:18,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883613283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:18,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:18,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:18,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560509124] [2024-11-14 03:01:18,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:18,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:18,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:18,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:18,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:18,872 INFO L87 Difference]: Start difference. First operand 18825 states and 25749 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:20,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:20,701 INFO L93 Difference]: Finished difference Result 48430 states and 66599 transitions. [2024-11-14 03:01:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2024-11-14 03:01:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:20,794 INFO L225 Difference]: With dead ends: 48430 [2024-11-14 03:01:20,794 INFO L226 Difference]: Without dead ends: 41546 [2024-11-14 03:01:20,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:20,810 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 4538 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4538 SdHoareTripleChecker+Valid, 1547 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:20,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4538 Valid, 1547 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1234 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 03:01:20,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41546 states. [2024-11-14 03:01:21,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41546 to 19005. [2024-11-14 03:01:21,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19005 states, 18999 states have (on average 1.3679141007421443) internal successors, (25989), 19004 states have internal predecessors, (25989), 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) [2024-11-14 03:01:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19005 states to 19005 states and 25989 transitions. [2024-11-14 03:01:21,282 INFO L78 Accepts]: Start accepts. Automaton has 19005 states and 25989 transitions. Word has length 78 [2024-11-14 03:01:21,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:21,283 INFO L471 AbstractCegarLoop]: Abstraction has 19005 states and 25989 transitions. [2024-11-14 03:01:21,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand 19005 states and 25989 transitions. [2024-11-14 03:01:21,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 03:01:21,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:21,294 INFO L215 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] [2024-11-14 03:01:21,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:01:21,295 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:21,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:21,295 INFO L85 PathProgramCache]: Analyzing trace with hash 368267107, now seen corresponding path program 1 times [2024-11-14 03:01:21,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:21,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091626542] [2024-11-14 03:01:21,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:21,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:21,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:21,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091626542] [2024-11-14 03:01:21,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091626542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:21,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:21,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:21,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067953807] [2024-11-14 03:01:21,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:21,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:21,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:21,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:21,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:21,595 INFO L87 Difference]: Start difference. First operand 19005 states and 25989 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:23,137 INFO L93 Difference]: Finished difference Result 45470 states and 62364 transitions. [2024-11-14 03:01:23,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:23,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2024-11-14 03:01:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:23,206 INFO L225 Difference]: With dead ends: 45470 [2024-11-14 03:01:23,206 INFO L226 Difference]: Without dead ends: 38880 [2024-11-14 03:01:23,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:23,220 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 4533 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4533 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:23,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4533 Valid, 1529 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:01:23,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38880 states. [2024-11-14 03:01:23,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38880 to 19305. [2024-11-14 03:01:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19305 states, 19299 states have (on average 1.3675838126327788) internal successors, (26393), 19304 states have internal predecessors, (26393), 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) [2024-11-14 03:01:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19305 states to 19305 states and 26393 transitions. [2024-11-14 03:01:23,653 INFO L78 Accepts]: Start accepts. Automaton has 19305 states and 26393 transitions. Word has length 78 [2024-11-14 03:01:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:23,653 INFO L471 AbstractCegarLoop]: Abstraction has 19305 states and 26393 transitions. [2024-11-14 03:01:23,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-14 03:01:23,653 INFO L276 IsEmpty]: Start isEmpty. Operand 19305 states and 26393 transitions. [2024-11-14 03:01:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:01:23,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:23,665 INFO L215 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] [2024-11-14 03:01:23,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:01:23,665 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:23,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:23,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1196772921, now seen corresponding path program 1 times [2024-11-14 03:01:23,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:23,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529171819] [2024-11-14 03:01:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:23,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:23,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:23,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529171819] [2024-11-14 03:01:23,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529171819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:23,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:23,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:23,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236341900] [2024-11-14 03:01:23,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:23,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:23,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:23,881 INFO L87 Difference]: Start difference. First operand 19305 states and 26393 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:25,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:25,109 INFO L93 Difference]: Finished difference Result 51404 states and 70566 transitions. [2024-11-14 03:01:25,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:01:25,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2024-11-14 03:01:25,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:25,181 INFO L225 Difference]: With dead ends: 51404 [2024-11-14 03:01:25,181 INFO L226 Difference]: Without dead ends: 32970 [2024-11-14 03:01:25,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:25,201 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 3688 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3688 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:25,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3688 Valid, 839 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:01:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32970 states. [2024-11-14 03:01:25,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32970 to 25577. [2024-11-14 03:01:25,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25577 states, 25571 states have (on average 1.3699894411638185) internal successors, (35032), 25576 states have internal predecessors, (35032), 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) [2024-11-14 03:01:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25577 states to 25577 states and 35032 transitions. [2024-11-14 03:01:25,669 INFO L78 Accepts]: Start accepts. Automaton has 25577 states and 35032 transitions. Word has length 79 [2024-11-14 03:01:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:25,670 INFO L471 AbstractCegarLoop]: Abstraction has 25577 states and 35032 transitions. [2024-11-14 03:01:25,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 25577 states and 35032 transitions. [2024-11-14 03:01:25,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:01:25,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:25,681 INFO L215 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] [2024-11-14 03:01:25,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:01:25,681 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:25,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:25,682 INFO L85 PathProgramCache]: Analyzing trace with hash 404807133, now seen corresponding path program 1 times [2024-11-14 03:01:25,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:25,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59915544] [2024-11-14 03:01:25,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:25,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:26,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59915544] [2024-11-14 03:01:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59915544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:26,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456177540] [2024-11-14 03:01:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:26,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:26,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:26,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:26,331 INFO L87 Difference]: Start difference. First operand 25577 states and 35032 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:26,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:26,610 INFO L93 Difference]: Finished difference Result 25577 states and 35032 transitions. [2024-11-14 03:01:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:26,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2024-11-14 03:01:26,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:26,656 INFO L225 Difference]: With dead ends: 25577 [2024-11-14 03:01:26,656 INFO L226 Difference]: Without dead ends: 25575 [2024-11-14 03:01:26,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:26,666 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 0 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:26,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3191 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:26,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25575 states. [2024-11-14 03:01:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25575 to 25575. [2024-11-14 03:01:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25575 states, 25570 states have (on average 1.3685960109503323) internal successors, (34995), 25574 states have internal predecessors, (34995), 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) [2024-11-14 03:01:27,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25575 states to 25575 states and 34995 transitions. [2024-11-14 03:01:27,125 INFO L78 Accepts]: Start accepts. Automaton has 25575 states and 34995 transitions. Word has length 79 [2024-11-14 03:01:27,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:27,125 INFO L471 AbstractCegarLoop]: Abstraction has 25575 states and 34995 transitions. [2024-11-14 03:01:27,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:27,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25575 states and 34995 transitions. [2024-11-14 03:01:27,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:01:27,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:27,136 INFO L215 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] [2024-11-14 03:01:27,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:01:27,137 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:27,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:27,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1278563792, now seen corresponding path program 1 times [2024-11-14 03:01:27,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:27,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998084047] [2024-11-14 03:01:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:27,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:27,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:27,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998084047] [2024-11-14 03:01:27,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998084047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:27,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:27,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:27,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352154964] [2024-11-14 03:01:27,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:27,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:27,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:27,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:27,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:27,620 INFO L87 Difference]: Start difference. First operand 25575 states and 34995 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:27,865 INFO L93 Difference]: Finished difference Result 25575 states and 34995 transitions. [2024-11-14 03:01:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2024-11-14 03:01:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:27,903 INFO L225 Difference]: With dead ends: 25575 [2024-11-14 03:01:27,903 INFO L226 Difference]: Without dead ends: 25573 [2024-11-14 03:01:27,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:27,912 INFO L432 NwaCegarLoop]: 1080 mSDtfsCounter, 0 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:27,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3185 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25573 states. [2024-11-14 03:01:28,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25573 to 25573. [2024-11-14 03:01:28,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25573 states, 25569 states have (on average 1.3672024717431264) internal successors, (34958), 25572 states have internal predecessors, (34958), 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) [2024-11-14 03:01:28,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 34958 transitions. [2024-11-14 03:01:28,380 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 34958 transitions. Word has length 79 [2024-11-14 03:01:28,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:28,380 INFO L471 AbstractCegarLoop]: Abstraction has 25573 states and 34958 transitions. [2024-11-14 03:01:28,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:28,380 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 34958 transitions. [2024-11-14 03:01:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:01:28,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:28,392 INFO L215 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] [2024-11-14 03:01:28,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:01:28,393 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:28,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2107548730, now seen corresponding path program 1 times [2024-11-14 03:01:28,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:28,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29101361] [2024-11-14 03:01:28,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:28,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:28,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:28,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29101361] [2024-11-14 03:01:28,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29101361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:28,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:28,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:28,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213407048] [2024-11-14 03:01:28,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:28,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:01:28,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:28,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:01:28,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:01:28,620 INFO L87 Difference]: Start difference. First operand 25573 states and 34958 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:29,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:29,801 INFO L93 Difference]: Finished difference Result 69276 states and 94795 transitions. [2024-11-14 03:01:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:01:29,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2024-11-14 03:01:29,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:29,872 INFO L225 Difference]: With dead ends: 69276 [2024-11-14 03:01:29,872 INFO L226 Difference]: Without dead ends: 44507 [2024-11-14 03:01:29,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:29,895 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 3274 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3274 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:29,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3274 Valid, 682 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:01:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44507 states. [2024-11-14 03:01:30,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44507 to 44501. [2024-11-14 03:01:30,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44501 states, 44497 states have (on average 1.3577319819313662) internal successors, (60415), 44500 states have internal predecessors, (60415), 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) [2024-11-14 03:01:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44501 states to 44501 states and 60415 transitions. [2024-11-14 03:01:30,635 INFO L78 Accepts]: Start accepts. Automaton has 44501 states and 60415 transitions. Word has length 79 [2024-11-14 03:01:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:30,635 INFO L471 AbstractCegarLoop]: Abstraction has 44501 states and 60415 transitions. [2024-11-14 03:01:30,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-14 03:01:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 44501 states and 60415 transitions. [2024-11-14 03:01:30,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:01:30,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:30,642 INFO L215 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] [2024-11-14 03:01:30,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:01:30,643 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:30,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:30,644 INFO L85 PathProgramCache]: Analyzing trace with hash 962616176, now seen corresponding path program 1 times [2024-11-14 03:01:30,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:30,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92600002] [2024-11-14 03:01:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:30,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:30,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92600002] [2024-11-14 03:01:30,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92600002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:30,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:30,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:30,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038715449] [2024-11-14 03:01:30,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:30,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:30,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:30,907 INFO L87 Difference]: Start difference. First operand 44501 states and 60415 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:32,632 INFO L93 Difference]: Finished difference Result 102207 states and 138176 transitions. [2024-11-14 03:01:32,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-14 03:01:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:32,775 INFO L225 Difference]: With dead ends: 102207 [2024-11-14 03:01:32,775 INFO L226 Difference]: Without dead ends: 81775 [2024-11-14 03:01:32,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:32,814 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 4147 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 1430 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:32,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4147 Valid, 1430 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 979 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:01:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81775 states. [2024-11-14 03:01:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81775 to 44585. [2024-11-14 03:01:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44585 states, 44581 states have (on average 1.3575962854130683) internal successors, (60523), 44584 states have internal predecessors, (60523), 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) [2024-11-14 03:01:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44585 states to 44585 states and 60523 transitions. [2024-11-14 03:01:34,327 INFO L78 Accepts]: Start accepts. Automaton has 44585 states and 60523 transitions. Word has length 80 [2024-11-14 03:01:34,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:34,327 INFO L471 AbstractCegarLoop]: Abstraction has 44585 states and 60523 transitions. [2024-11-14 03:01:34,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:34,328 INFO L276 IsEmpty]: Start isEmpty. Operand 44585 states and 60523 transitions. [2024-11-14 03:01:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:01:34,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:34,337 INFO L215 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] [2024-11-14 03:01:34,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 03:01:34,338 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:34,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1928103402, now seen corresponding path program 1 times [2024-11-14 03:01:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:34,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882225896] [2024-11-14 03:01:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:34,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:34,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882225896] [2024-11-14 03:01:34,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882225896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:34,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:34,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:34,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209094680] [2024-11-14 03:01:34,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:34,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:34,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:34,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:34,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:34,644 INFO L87 Difference]: Start difference. First operand 44585 states and 60523 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:36,667 INFO L93 Difference]: Finished difference Result 112570 states and 152377 transitions. [2024-11-14 03:01:36,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:36,668 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-14 03:01:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:36,776 INFO L225 Difference]: With dead ends: 112570 [2024-11-14 03:01:36,777 INFO L226 Difference]: Without dead ends: 93782 [2024-11-14 03:01:36,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:36,804 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 4363 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4363 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:36,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4363 Valid, 1530 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:01:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93782 states. [2024-11-14 03:01:37,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93782 to 45092. [2024-11-14 03:01:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45092 states, 45088 states have (on average 1.3575452448545067) internal successors, (61209), 45091 states have internal predecessors, (61209), 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) [2024-11-14 03:01:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45092 states to 45092 states and 61209 transitions. [2024-11-14 03:01:37,811 INFO L78 Accepts]: Start accepts. Automaton has 45092 states and 61209 transitions. Word has length 80 [2024-11-14 03:01:37,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:37,812 INFO L471 AbstractCegarLoop]: Abstraction has 45092 states and 61209 transitions. [2024-11-14 03:01:37,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 6 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:01:37,812 INFO L276 IsEmpty]: Start isEmpty. Operand 45092 states and 61209 transitions. [2024-11-14 03:01:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:37,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:37,819 INFO L215 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] [2024-11-14 03:01:37,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 03:01:37,819 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:37,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:37,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1939475610, now seen corresponding path program 1 times [2024-11-14 03:01:37,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:37,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389405377] [2024-11-14 03:01:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:37,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:37,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:38,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:38,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389405377] [2024-11-14 03:01:38,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389405377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:38,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:38,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:38,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216799258] [2024-11-14 03:01:38,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:38,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:38,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:38,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:38,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:38,207 INFO L87 Difference]: Start difference. First operand 45092 states and 61209 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-14 03:01:38,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:38,482 INFO L93 Difference]: Finished difference Result 45092 states and 61209 transitions. [2024-11-14 03:01:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:38,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-11-14 03:01:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:38,732 INFO L225 Difference]: With dead ends: 45092 [2024-11-14 03:01:38,732 INFO L226 Difference]: Without dead ends: 45090 [2024-11-14 03:01:38,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:38,738 INFO L432 NwaCegarLoop]: 1030 mSDtfsCounter, 0 mSDsluCounter, 2005 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:38,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3035 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45090 states. [2024-11-14 03:01:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45090 to 45090. [2024-11-14 03:01:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45090 states, 45087 states have (on average 1.356355490496152) internal successors, (61154), 45089 states have internal predecessors, (61154), 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) [2024-11-14 03:01:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45090 states to 45090 states and 61154 transitions. [2024-11-14 03:01:39,684 INFO L78 Accepts]: Start accepts. Automaton has 45090 states and 61154 transitions. Word has length 81 [2024-11-14 03:01:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:39,684 INFO L471 AbstractCegarLoop]: Abstraction has 45090 states and 61154 transitions. [2024-11-14 03:01:39,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-14 03:01:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45090 states and 61154 transitions. [2024-11-14 03:01:39,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:01:39,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:39,695 INFO L215 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] [2024-11-14 03:01:39,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 03:01:39,695 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:39,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 590714783, now seen corresponding path program 1 times [2024-11-14 03:01:39,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:39,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755693305] [2024-11-14 03:01:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:39,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:40,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:40,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755693305] [2024-11-14 03:01:40,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755693305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:40,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:40,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165969409] [2024-11-14 03:01:40,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:40,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:40,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:40,140 INFO L87 Difference]: Start difference. First operand 45090 states and 61154 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-14 03:01:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:40,487 INFO L93 Difference]: Finished difference Result 45090 states and 61154 transitions. [2024-11-14 03:01:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:40,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2024-11-14 03:01:40,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:40,557 INFO L225 Difference]: With dead ends: 45090 [2024-11-14 03:01:40,557 INFO L226 Difference]: Without dead ends: 45088 [2024-11-14 03:01:40,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:40,572 INFO L432 NwaCegarLoop]: 1028 mSDtfsCounter, 0 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:40,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3029 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:40,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45088 states. [2024-11-14 03:01:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45088 to 45088. [2024-11-14 03:01:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45088 states, 45086 states have (on average 1.3551656833606884) internal successors, (61099), 45087 states have internal predecessors, (61099), 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) [2024-11-14 03:01:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45088 states to 45088 states and 61099 transitions. [2024-11-14 03:01:41,397 INFO L78 Accepts]: Start accepts. Automaton has 45088 states and 61099 transitions. Word has length 81 [2024-11-14 03:01:41,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:41,397 INFO L471 AbstractCegarLoop]: Abstraction has 45088 states and 61099 transitions. [2024-11-14 03:01:41,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2024-11-14 03:01:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 45088 states and 61099 transitions. [2024-11-14 03:01:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:01:41,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:41,407 INFO L215 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] [2024-11-14 03:01:41,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-14 03:01:41,407 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:41,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash -735836713, now seen corresponding path program 1 times [2024-11-14 03:01:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389300873] [2024-11-14 03:01:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:41,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:41,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389300873] [2024-11-14 03:01:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389300873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:41,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416990336] [2024-11-14 03:01:41,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:41,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:41,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:41,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:41,897 INFO L87 Difference]: Start difference. First operand 45088 states and 61099 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-14 03:01:44,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:44,221 INFO L93 Difference]: Finished difference Result 102969 states and 139405 transitions. [2024-11-14 03:01:44,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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 82 [2024-11-14 03:01:44,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:44,304 INFO L225 Difference]: With dead ends: 102969 [2024-11-14 03:01:44,305 INFO L226 Difference]: Without dead ends: 66347 [2024-11-14 03:01:44,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:01:44,335 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 3786 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3786 SdHoareTripleChecker+Valid, 2552 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:44,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3786 Valid, 2552 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:01:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66347 states. [2024-11-14 03:01:45,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66347 to 45082. [2024-11-14 03:01:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45082 states, 45080 states have (on average 1.354946761313221) internal successors, (61081), 45081 states have internal predecessors, (61081), 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) [2024-11-14 03:01:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45082 states to 45082 states and 61081 transitions. [2024-11-14 03:01:45,332 INFO L78 Accepts]: Start accepts. Automaton has 45082 states and 61081 transitions. Word has length 82 [2024-11-14 03:01:45,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:45,332 INFO L471 AbstractCegarLoop]: Abstraction has 45082 states and 61081 transitions. [2024-11-14 03:01:45,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-14 03:01:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45082 states and 61081 transitions. [2024-11-14 03:01:45,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:01:45,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:45,341 INFO L215 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] [2024-11-14 03:01:45,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-14 03:01:45,341 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:45,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:45,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1423178599, now seen corresponding path program 1 times [2024-11-14 03:01:45,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103888612] [2024-11-14 03:01:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:45,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:45,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:45,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103888612] [2024-11-14 03:01:45,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103888612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:45,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475267888] [2024-11-14 03:01:45,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:45,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:45,954 INFO L87 Difference]: Start difference. First operand 45082 states and 61081 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-14 03:01:46,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:46,245 INFO L93 Difference]: Finished difference Result 45082 states and 61081 transitions. [2024-11-14 03:01:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:46,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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 83 [2024-11-14 03:01:46,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:46,310 INFO L225 Difference]: With dead ends: 45082 [2024-11-14 03:01:46,310 INFO L226 Difference]: Without dead ends: 45080 [2024-11-14 03:01:46,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:46,325 INFO L432 NwaCegarLoop]: 1025 mSDtfsCounter, 0 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:46,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3020 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:01:46,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45080 states. [2024-11-14 03:01:47,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45080 to 45080. [2024-11-14 03:01:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45080 states, 45079 states have (on average 1.3531577896581557) internal successors, (60999), 45079 states have internal predecessors, (60999), 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) [2024-11-14 03:01:47,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45080 states to 45080 states and 60999 transitions. [2024-11-14 03:01:47,132 INFO L78 Accepts]: Start accepts. Automaton has 45080 states and 60999 transitions. Word has length 83 [2024-11-14 03:01:47,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:47,132 INFO L471 AbstractCegarLoop]: Abstraction has 45080 states and 60999 transitions. [2024-11-14 03:01:47,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-14 03:01:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 45080 states and 60999 transitions. [2024-11-14 03:01:47,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:01:47,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:47,145 INFO L215 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] [2024-11-14 03:01:47,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-14 03:01:47,146 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:47,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:47,147 INFO L85 PathProgramCache]: Analyzing trace with hash -67163542, now seen corresponding path program 1 times [2024-11-14 03:01:47,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:47,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993276398] [2024-11-14 03:01:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:47,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:49,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:49,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993276398] [2024-11-14 03:01:49,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993276398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:49,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:49,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:01:49,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988551086] [2024-11-14 03:01:49,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:49,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:01:49,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:49,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:01:49,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:49,027 INFO L87 Difference]: Start difference. First operand 45080 states and 60999 transitions. Second operand has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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) [2024-11-14 03:01:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:51,193 INFO L93 Difference]: Finished difference Result 111284 states and 151173 transitions. [2024-11-14 03:01:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:01:51,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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 83 [2024-11-14 03:01:51,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:51,273 INFO L225 Difference]: With dead ends: 111284 [2024-11-14 03:01:51,274 INFO L226 Difference]: Without dead ends: 74608 [2024-11-14 03:01:51,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:01:51,293 INFO L432 NwaCegarLoop]: 973 mSDtfsCounter, 4807 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4807 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:51,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4807 Valid, 5180 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 03:01:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74608 states. [2024-11-14 03:01:51,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74608 to 45014. [2024-11-14 03:01:51,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45014 states, 45013 states have (on average 1.353009130695577) internal successors, (60903), 45013 states have internal predecessors, (60903), 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) [2024-11-14 03:01:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45014 states to 45014 states and 60903 transitions. [2024-11-14 03:01:51,964 INFO L78 Accepts]: Start accepts. Automaton has 45014 states and 60903 transitions. Word has length 83 [2024-11-14 03:01:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:51,964 INFO L471 AbstractCegarLoop]: Abstraction has 45014 states and 60903 transitions. [2024-11-14 03:01:51,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.916666666666667) internal successors, (83), 11 states have internal predecessors, (83), 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) [2024-11-14 03:01:51,964 INFO L276 IsEmpty]: Start isEmpty. Operand 45014 states and 60903 transitions. [2024-11-14 03:01:51,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:51,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:51,972 INFO L215 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] [2024-11-14 03:01:51,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-14 03:01:51,972 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:51,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:51,972 INFO L85 PathProgramCache]: Analyzing trace with hash -2019204519, now seen corresponding path program 1 times [2024-11-14 03:01:51,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:51,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418954676] [2024-11-14 03:01:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:51,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:52,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:52,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:52,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:52,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418954676] [2024-11-14 03:01:52,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418954676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:52,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:52,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:01:52,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944548938] [2024-11-14 03:01:52,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:52,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:01:52,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:52,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:01:52,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:01:52,601 INFO L87 Difference]: Start difference. First operand 45014 states and 60903 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2024-11-14 03:01:54,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:54,763 INFO L93 Difference]: Finished difference Result 103538 states and 140112 transitions. [2024-11-14 03:01:54,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:01:54,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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 84 [2024-11-14 03:01:54,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:54,825 INFO L225 Difference]: With dead ends: 103538 [2024-11-14 03:01:54,825 INFO L226 Difference]: Without dead ends: 66860 [2024-11-14 03:01:54,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:01:54,846 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 2335 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:54,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2335 Valid, 2629 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 03:01:54,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66860 states. [2024-11-14 03:01:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66860 to 44980. [2024-11-14 03:01:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44980 states, 44979 states have (on average 1.3528757864781342) internal successors, (60851), 44979 states have internal predecessors, (60851), 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) [2024-11-14 03:01:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44980 states to 44980 states and 60851 transitions. [2024-11-14 03:01:55,669 INFO L78 Accepts]: Start accepts. Automaton has 44980 states and 60851 transitions. Word has length 84 [2024-11-14 03:01:55,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:55,669 INFO L471 AbstractCegarLoop]: Abstraction has 44980 states and 60851 transitions. [2024-11-14 03:01:55,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 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) [2024-11-14 03:01:55,669 INFO L276 IsEmpty]: Start isEmpty. Operand 44980 states and 60851 transitions. [2024-11-14 03:01:55,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:55,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:55,677 INFO L215 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] [2024-11-14 03:01:55,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-14 03:01:55,677 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:55,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:55,678 INFO L85 PathProgramCache]: Analyzing trace with hash 956681155, now seen corresponding path program 1 times [2024-11-14 03:01:55,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:55,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610433712] [2024-11-14 03:01:55,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:55,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:56,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610433712] [2024-11-14 03:01:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610433712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:56,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:56,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:56,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109166536] [2024-11-14 03:01:56,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:56,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:56,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:56,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:56,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:56,004 INFO L87 Difference]: Start difference. First operand 44980 states and 60851 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-14 03:01:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:57,735 INFO L93 Difference]: Finished difference Result 121221 states and 164479 transitions. [2024-11-14 03:01:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:01:57,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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 84 [2024-11-14 03:01:57,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:57,888 INFO L225 Difference]: With dead ends: 121221 [2024-11-14 03:01:57,888 INFO L226 Difference]: Without dead ends: 102559 [2024-11-14 03:01:57,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:01:57,923 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 4263 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:57,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 1493 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:01:57,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102559 states. [2024-11-14 03:01:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102559 to 45040. [2024-11-14 03:01:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45040 states, 45039 states have (on average 1.352849752436777) internal successors, (60931), 45039 states have internal predecessors, (60931), 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) [2024-11-14 03:01:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45040 states to 45040 states and 60931 transitions. [2024-11-14 03:01:58,938 INFO L78 Accepts]: Start accepts. Automaton has 45040 states and 60931 transitions. Word has length 84 [2024-11-14 03:01:58,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:58,938 INFO L471 AbstractCegarLoop]: Abstraction has 45040 states and 60931 transitions. [2024-11-14 03:01:58,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-14 03:01:58,939 INFO L276 IsEmpty]: Start isEmpty. Operand 45040 states and 60931 transitions. [2024-11-14 03:01:58,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:01:58,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:58,948 INFO L215 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] [2024-11-14 03:01:58,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-14 03:01:58,949 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:01:58,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash -227130721, now seen corresponding path program 1 times [2024-11-14 03:01:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:58,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266609721] [2024-11-14 03:01:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:01:59,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:59,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266609721] [2024-11-14 03:01:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266609721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:59,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:59,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:01:59,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079775205] [2024-11-14 03:01:59,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:59,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:01:59,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:59,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:01:59,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:01:59,166 INFO L87 Difference]: Start difference. First operand 45040 states and 60931 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-14 03:02:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:01,170 INFO L93 Difference]: Finished difference Result 112274 states and 151764 transitions. [2024-11-14 03:02:01,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:02:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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 84 [2024-11-14 03:02:01,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:01,279 INFO L225 Difference]: With dead ends: 112274 [2024-11-14 03:02:01,279 INFO L226 Difference]: Without dead ends: 93704 [2024-11-14 03:02:01,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:02:01,301 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 4282 mSDsluCounter, 954 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4282 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:01,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4282 Valid, 1510 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:02:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93704 states. [2024-11-14 03:02:02,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93704 to 45130. [2024-11-14 03:02:02,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45130 states, 45129 states have (on average 1.35281083117286) internal successors, (61051), 45129 states have internal predecessors, (61051), 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) [2024-11-14 03:02:02,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45130 states to 45130 states and 61051 transitions. [2024-11-14 03:02:02,475 INFO L78 Accepts]: Start accepts. Automaton has 45130 states and 61051 transitions. Word has length 84 [2024-11-14 03:02:02,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:02,476 INFO L471 AbstractCegarLoop]: Abstraction has 45130 states and 61051 transitions. [2024-11-14 03:02:02,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-14 03:02:02,476 INFO L276 IsEmpty]: Start isEmpty. Operand 45130 states and 61051 transitions. [2024-11-14 03:02:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:02:02,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:02,484 INFO L215 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] [2024-11-14 03:02:02,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-14 03:02:02,484 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:02,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1464495189, now seen corresponding path program 1 times [2024-11-14 03:02:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:02,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202941308] [2024-11-14 03:02:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:02,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:02,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:02,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202941308] [2024-11-14 03:02:02,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202941308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:02,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:02,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:02:02,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426658115] [2024-11-14 03:02:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:02,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:02:02,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:02,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:02:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:03,001 INFO L87 Difference]: Start difference. First operand 45130 states and 61051 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-11-14 03:02:05,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:05,463 INFO L93 Difference]: Finished difference Result 71966 states and 96630 transitions. [2024-11-14 03:02:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:02:05,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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 84 [2024-11-14 03:02:05,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:05,535 INFO L225 Difference]: With dead ends: 71966 [2024-11-14 03:02:05,535 INFO L226 Difference]: Without dead ends: 65762 [2024-11-14 03:02:05,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:02:05,551 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 2986 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2986 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:05,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2986 Valid, 3006 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2711 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 03:02:05,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65762 states. [2024-11-14 03:02:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65762 to 45134. [2024-11-14 03:02:06,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45134 states, 45133 states have (on average 1.3527574058892606) internal successors, (61054), 45133 states have internal predecessors, (61054), 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) [2024-11-14 03:02:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45134 states to 45134 states and 61054 transitions. [2024-11-14 03:02:06,329 INFO L78 Accepts]: Start accepts. Automaton has 45134 states and 61054 transitions. Word has length 84 [2024-11-14 03:02:06,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:06,330 INFO L471 AbstractCegarLoop]: Abstraction has 45134 states and 61054 transitions. [2024-11-14 03:02:06,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 states have internal predecessors, (84), 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) [2024-11-14 03:02:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 45134 states and 61054 transitions. [2024-11-14 03:02:06,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:02:06,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:06,338 INFO L215 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] [2024-11-14 03:02:06,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-14 03:02:06,338 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:06,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -260277858, now seen corresponding path program 1 times [2024-11-14 03:02:06,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:06,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761390668] [2024-11-14 03:02:06,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:06,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:07,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761390668] [2024-11-14 03:02:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761390668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:07,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:07,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:02:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289888548] [2024-11-14 03:02:07,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:07,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:02:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:07,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:02:07,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:02:07,450 INFO L87 Difference]: Start difference. First operand 45134 states and 61054 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 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) [2024-11-14 03:02:09,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:09,055 INFO L93 Difference]: Finished difference Result 111262 states and 151168 transitions. [2024-11-14 03:02:09,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:02:09,055 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 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 85 [2024-11-14 03:02:09,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:09,135 INFO L225 Difference]: With dead ends: 111262 [2024-11-14 03:02:09,135 INFO L226 Difference]: Without dead ends: 74544 [2024-11-14 03:02:09,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:02:09,163 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 4679 mSDsluCounter, 4312 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 5291 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:09,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4679 Valid, 5291 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:02:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74544 states. [2024-11-14 03:02:10,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74544 to 45026. [2024-11-14 03:02:10,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45026 states, 45025 states have (on average 1.352715158245419) internal successors, (60906), 45025 states have internal predecessors, (60906), 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) [2024-11-14 03:02:10,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45026 states to 45026 states and 60906 transitions. [2024-11-14 03:02:10,367 INFO L78 Accepts]: Start accepts. Automaton has 45026 states and 60906 transitions. Word has length 85 [2024-11-14 03:02:10,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:10,368 INFO L471 AbstractCegarLoop]: Abstraction has 45026 states and 60906 transitions. [2024-11-14 03:02:10,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 11 states have internal predecessors, (85), 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) [2024-11-14 03:02:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 45026 states and 60906 transitions. [2024-11-14 03:02:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:02:10,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:10,388 INFO L215 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] [2024-11-14 03:02:10,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-14 03:02:10,388 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:10,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:10,392 INFO L85 PathProgramCache]: Analyzing trace with hash -744482725, now seen corresponding path program 1 times [2024-11-14 03:02:10,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:10,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965787260] [2024-11-14 03:02:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:11,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:11,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965787260] [2024-11-14 03:02:11,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965787260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:11,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:11,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:11,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484889727] [2024-11-14 03:02:11,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:11,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:02:11,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:11,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:02:11,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:02:11,012 INFO L87 Difference]: Start difference. First operand 45026 states and 60906 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 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) [2024-11-14 03:02:13,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:13,195 INFO L93 Difference]: Finished difference Result 103658 states and 140289 transitions. [2024-11-14 03:02:13,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:02:13,195 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 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 85 [2024-11-14 03:02:13,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:13,266 INFO L225 Difference]: With dead ends: 103658 [2024-11-14 03:02:13,266 INFO L226 Difference]: Without dead ends: 66588 [2024-11-14 03:02:13,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 03:02:13,290 INFO L432 NwaCegarLoop]: 652 mSDtfsCounter, 3263 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3263 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:13,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3263 Valid, 2746 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:02:13,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66588 states. [2024-11-14 03:02:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66588 to 44784. [2024-11-14 03:02:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44784 states, 44783 states have (on average 1.3526561418395373) internal successors, (60576), 44783 states have internal predecessors, (60576), 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) [2024-11-14 03:02:14,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44784 states to 44784 states and 60576 transitions. [2024-11-14 03:02:14,181 INFO L78 Accepts]: Start accepts. Automaton has 44784 states and 60576 transitions. Word has length 85 [2024-11-14 03:02:14,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:14,181 INFO L471 AbstractCegarLoop]: Abstraction has 44784 states and 60576 transitions. [2024-11-14 03:02:14,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 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) [2024-11-14 03:02:14,181 INFO L276 IsEmpty]: Start isEmpty. Operand 44784 states and 60576 transitions. [2024-11-14 03:02:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:02:14,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:14,191 INFO L215 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] [2024-11-14 03:02:14,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-14 03:02:14,191 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:14,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:14,192 INFO L85 PathProgramCache]: Analyzing trace with hash -951414785, now seen corresponding path program 1 times [2024-11-14 03:02:14,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:14,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988408272] [2024-11-14 03:02:14,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:14,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:14,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:14,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988408272] [2024-11-14 03:02:14,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988408272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:14,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:14,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:02:14,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159448202] [2024-11-14 03:02:14,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:14,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:02:14,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:14,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:02:14,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:02:14,376 INFO L87 Difference]: Start difference. First operand 44784 states and 60576 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-11-14 03:02:16,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:16,071 INFO L93 Difference]: Finished difference Result 111982 states and 151377 transitions. [2024-11-14 03:02:16,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:02:16,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 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 85 [2024-11-14 03:02:16,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:16,169 INFO L225 Difference]: With dead ends: 111982 [2024-11-14 03:02:16,170 INFO L226 Difference]: Without dead ends: 93376 [2024-11-14 03:02:16,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:02:16,192 INFO L432 NwaCegarLoop]: 546 mSDtfsCounter, 4170 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:16,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 1484 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:02:16,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93376 states. [2024-11-14 03:02:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93376 to 44979. [2024-11-14 03:02:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44979 states, 44978 states have (on average 1.352683534172262) internal successors, (60841), 44978 states have internal predecessors, (60841), 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) [2024-11-14 03:02:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44979 states to 44979 states and 60841 transitions. [2024-11-14 03:02:17,148 INFO L78 Accepts]: Start accepts. Automaton has 44979 states and 60841 transitions. Word has length 85 [2024-11-14 03:02:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:17,148 INFO L471 AbstractCegarLoop]: Abstraction has 44979 states and 60841 transitions. [2024-11-14 03:02:17,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 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) [2024-11-14 03:02:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 44979 states and 60841 transitions. [2024-11-14 03:02:17,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:02:17,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:17,156 INFO L215 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] [2024-11-14 03:02:17,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-14 03:02:17,156 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:17,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:17,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1373868072, now seen corresponding path program 1 times [2024-11-14 03:02:17,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:17,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740118828] [2024-11-14 03:02:17,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:17,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:17,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:17,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740118828] [2024-11-14 03:02:17,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740118828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:17,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:17,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:02:17,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102103249] [2024-11-14 03:02:17,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:17,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:02:17,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:17,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:02:17,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:17,530 INFO L87 Difference]: Start difference. First operand 44979 states and 60841 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-14 03:02:19,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:19,892 INFO L93 Difference]: Finished difference Result 77772 states and 104518 transitions. [2024-11-14 03:02:19,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:02:19,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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 85 [2024-11-14 03:02:19,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:19,980 INFO L225 Difference]: With dead ends: 77772 [2024-11-14 03:02:19,981 INFO L226 Difference]: Without dead ends: 65559 [2024-11-14 03:02:19,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:02:19,998 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 3215 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3215 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:19,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3215 Valid, 2752 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 03:02:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65559 states. [2024-11-14 03:02:20,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65559 to 44975. [2024-11-14 03:02:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44975 states, 44974 states have (on average 1.3526259616667409) internal successors, (60833), 44974 states have internal predecessors, (60833), 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) [2024-11-14 03:02:21,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44975 states to 44975 states and 60833 transitions. [2024-11-14 03:02:21,175 INFO L78 Accepts]: Start accepts. Automaton has 44975 states and 60833 transitions. Word has length 85 [2024-11-14 03:02:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:21,175 INFO L471 AbstractCegarLoop]: Abstraction has 44975 states and 60833 transitions. [2024-11-14 03:02:21,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-14 03:02:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 44975 states and 60833 transitions. [2024-11-14 03:02:21,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 03:02:21,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:21,182 INFO L215 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] [2024-11-14 03:02:21,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-14 03:02:21,182 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:21,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:21,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1366181287, now seen corresponding path program 1 times [2024-11-14 03:02:21,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:21,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153213539] [2024-11-14 03:02:21,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:21,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:21,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153213539] [2024-11-14 03:02:21,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153213539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:21,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:21,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 03:02:21,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090615557] [2024-11-14 03:02:21,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:21,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:02:21,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:21,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:02:21,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:02:21,899 INFO L87 Difference]: Start difference. First operand 44975 states and 60833 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 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) [2024-11-14 03:02:25,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:25,083 INFO L93 Difference]: Finished difference Result 145823 states and 197542 transitions. [2024-11-14 03:02:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-14 03:02:25,084 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 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 85 [2024-11-14 03:02:25,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:25,227 INFO L225 Difference]: With dead ends: 145823 [2024-11-14 03:02:25,227 INFO L226 Difference]: Without dead ends: 109195 [2024-11-14 03:02:25,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:02:25,267 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 5189 mSDsluCounter, 4644 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5189 SdHoareTripleChecker+Valid, 5490 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:25,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5189 Valid, 5490 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 03:02:25,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109195 states. [2024-11-14 03:02:26,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109195 to 44957. [2024-11-14 03:02:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44957 states, 44956 states have (on average 1.3523667586084172) internal successors, (60797), 44956 states have internal predecessors, (60797), 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) [2024-11-14 03:02:26,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44957 states to 44957 states and 60797 transitions. [2024-11-14 03:02:26,584 INFO L78 Accepts]: Start accepts. Automaton has 44957 states and 60797 transitions. Word has length 85 [2024-11-14 03:02:26,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:26,584 INFO L471 AbstractCegarLoop]: Abstraction has 44957 states and 60797 transitions. [2024-11-14 03:02:26,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 12 states have internal predecessors, (85), 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) [2024-11-14 03:02:26,584 INFO L276 IsEmpty]: Start isEmpty. Operand 44957 states and 60797 transitions. [2024-11-14 03:02:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:02:26,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:26,601 INFO L215 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] [2024-11-14 03:02:26,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-14 03:02:26,602 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:26,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash -349720574, now seen corresponding path program 1 times [2024-11-14 03:02:26,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:26,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828273545] [2024-11-14 03:02:26,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:26,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:26,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:26,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:26,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828273545] [2024-11-14 03:02:26,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828273545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:26,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:26,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:02:26,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788901247] [2024-11-14 03:02:26,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:26,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:02:26,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:02:26,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:02:26,725 INFO L87 Difference]: Start difference. First operand 44957 states and 60797 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-14 03:02:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:27,002 INFO L93 Difference]: Finished difference Result 64947 states and 87963 transitions. [2024-11-14 03:02:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:02:27,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2024-11-14 03:02:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:27,061 INFO L225 Difference]: With dead ends: 64947 [2024-11-14 03:02:27,062 INFO L226 Difference]: Without dead ends: 44959 [2024-11-14 03:02:27,081 INFO L431 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 [2024-11-14 03:02:27,081 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 610 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:27,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 2107 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44959 states. [2024-11-14 03:02:27,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44959 to 44957. [2024-11-14 03:02:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44957 states, 44956 states have (on average 1.3421122875700686) internal successors, (60336), 44956 states have internal predecessors, (60336), 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) [2024-11-14 03:02:28,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44957 states to 44957 states and 60336 transitions. [2024-11-14 03:02:28,063 INFO L78 Accepts]: Start accepts. Automaton has 44957 states and 60336 transitions. Word has length 86 [2024-11-14 03:02:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:28,064 INFO L471 AbstractCegarLoop]: Abstraction has 44957 states and 60336 transitions. [2024-11-14 03:02:28,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-14 03:02:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 44957 states and 60336 transitions. [2024-11-14 03:02:28,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:02:28,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:28,076 INFO L215 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] [2024-11-14 03:02:28,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-14 03:02:28,076 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:28,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:28,077 INFO L85 PathProgramCache]: Analyzing trace with hash -439822029, now seen corresponding path program 1 times [2024-11-14 03:02:28,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:28,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590279332] [2024-11-14 03:02:28,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:28,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:28,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590279332] [2024-11-14 03:02:28,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590279332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:28,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:28,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846061592] [2024-11-14 03:02:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:28,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:02:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:28,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:02:28,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:02:28,423 INFO L87 Difference]: Start difference. First operand 44957 states and 60336 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-14 03:02:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:30,391 INFO L93 Difference]: Finished difference Result 103519 states and 139039 transitions. [2024-11-14 03:02:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:02:30,392 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 86 [2024-11-14 03:02:30,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:30,489 INFO L225 Difference]: With dead ends: 103519 [2024-11-14 03:02:30,489 INFO L226 Difference]: Without dead ends: 66759 [2024-11-14 03:02:30,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-14 03:02:30,521 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 3655 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3655 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:30,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3655 Valid, 2416 Invalid, 1840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:02:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66759 states. [2024-11-14 03:02:31,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66759 to 44882. [2024-11-14 03:02:31,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44882 states, 44881 states have (on average 1.341948708807736) internal successors, (60228), 44881 states have internal predecessors, (60228), 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) [2024-11-14 03:02:32,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44882 states to 44882 states and 60228 transitions. [2024-11-14 03:02:32,033 INFO L78 Accepts]: Start accepts. Automaton has 44882 states and 60228 transitions. Word has length 86 [2024-11-14 03:02:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:32,033 INFO L471 AbstractCegarLoop]: Abstraction has 44882 states and 60228 transitions. [2024-11-14 03:02:32,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-14 03:02:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 44882 states and 60228 transitions. [2024-11-14 03:02:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:02:32,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:32,050 INFO L215 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] [2024-11-14 03:02:32,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-14 03:02:32,050 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:32,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash 92171085, now seen corresponding path program 1 times [2024-11-14 03:02:32,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:32,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426598121] [2024-11-14 03:02:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:32,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:32,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:32,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426598121] [2024-11-14 03:02:32,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426598121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:32,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:32,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:02:32,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656196282] [2024-11-14 03:02:32,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:32,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:02:32,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:32,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:02:32,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:02:32,308 INFO L87 Difference]: Start difference. First operand 44882 states and 60228 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-14 03:02:34,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:34,159 INFO L93 Difference]: Finished difference Result 121280 states and 163488 transitions. [2024-11-14 03:02:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:02:34,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 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 86 [2024-11-14 03:02:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:34,374 INFO L225 Difference]: With dead ends: 121280 [2024-11-14 03:02:34,374 INFO L226 Difference]: Without dead ends: 111724 [2024-11-14 03:02:34,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:02:34,414 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 4158 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4158 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:34,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4158 Valid, 1481 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:02:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111724 states. [2024-11-14 03:02:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111724 to 44957. [2024-11-14 03:02:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44957 states, 44956 states have (on average 1.3417118960761634) internal successors, (60318), 44956 states have internal predecessors, (60318), 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) [2024-11-14 03:02:35,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44957 states to 44957 states and 60318 transitions. [2024-11-14 03:02:35,922 INFO L78 Accepts]: Start accepts. Automaton has 44957 states and 60318 transitions. Word has length 86 [2024-11-14 03:02:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:35,922 INFO L471 AbstractCegarLoop]: Abstraction has 44957 states and 60318 transitions. [2024-11-14 03:02:35,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-14 03:02:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 44957 states and 60318 transitions. [2024-11-14 03:02:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:02:35,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:35,935 INFO L215 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] [2024-11-14 03:02:35,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-14 03:02:35,935 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:35,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:35,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1301683267, now seen corresponding path program 1 times [2024-11-14 03:02:35,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:35,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809002900] [2024-11-14 03:02:35,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:35,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:36,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:36,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809002900] [2024-11-14 03:02:36,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809002900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:36,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:36,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:02:36,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93296498] [2024-11-14 03:02:36,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:36,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:02:36,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:36,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:02:36,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:36,422 INFO L87 Difference]: Start difference. First operand 44957 states and 60318 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2024-11-14 03:02:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:39,168 INFO L93 Difference]: Finished difference Result 111221 states and 149399 transitions. [2024-11-14 03:02:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:02:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2024-11-14 03:02:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:39,256 INFO L225 Difference]: With dead ends: 111221 [2024-11-14 03:02:39,257 INFO L226 Difference]: Without dead ends: 73579 [2024-11-14 03:02:39,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:02:39,278 INFO L432 NwaCegarLoop]: 646 mSDtfsCounter, 3563 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 2207 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:39,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3563 Valid, 3140 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2207 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:02:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73579 states. [2024-11-14 03:02:40,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73579 to 44426. [2024-11-14 03:02:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44426 states, 44425 states have (on average 1.3417445132245358) internal successors, (59607), 44425 states have internal predecessors, (59607), 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) [2024-11-14 03:02:40,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44426 states to 44426 states and 59607 transitions. [2024-11-14 03:02:40,672 INFO L78 Accepts]: Start accepts. Automaton has 44426 states and 59607 transitions. Word has length 86 [2024-11-14 03:02:40,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:40,672 INFO L471 AbstractCegarLoop]: Abstraction has 44426 states and 59607 transitions. [2024-11-14 03:02:40,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 8 states have internal predecessors, (86), 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) [2024-11-14 03:02:40,673 INFO L276 IsEmpty]: Start isEmpty. Operand 44426 states and 59607 transitions. [2024-11-14 03:02:40,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:02:40,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:40,689 INFO L215 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] [2024-11-14 03:02:40,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-14 03:02:40,690 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:40,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:40,690 INFO L85 PathProgramCache]: Analyzing trace with hash -145657322, now seen corresponding path program 1 times [2024-11-14 03:02:40,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:40,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485891626] [2024-11-14 03:02:40,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:40,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:41,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:41,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:41,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485891626] [2024-11-14 03:02:41,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485891626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:41,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:41,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:41,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970311206] [2024-11-14 03:02:41,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:41,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:02:41,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:41,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:02:41,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:02:41,234 INFO L87 Difference]: Start difference. First operand 44426 states and 59607 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-14 03:02:43,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:43,290 INFO L93 Difference]: Finished difference Result 74988 states and 100173 transitions. [2024-11-14 03:02:43,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:02:43,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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 86 [2024-11-14 03:02:43,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:43,381 INFO L225 Difference]: With dead ends: 74988 [2024-11-14 03:02:43,381 INFO L226 Difference]: Without dead ends: 56550 [2024-11-14 03:02:43,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:02:43,405 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 3551 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:43,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 2551 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:02:43,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56550 states. [2024-11-14 03:02:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56550 to 44246. [2024-11-14 03:02:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44246 states, 44245 states have (on average 1.3415075149734432) internal successors, (59355), 44245 states have internal predecessors, (59355), 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) [2024-11-14 03:02:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44246 states to 44246 states and 59355 transitions. [2024-11-14 03:02:44,674 INFO L78 Accepts]: Start accepts. Automaton has 44246 states and 59355 transitions. Word has length 86 [2024-11-14 03:02:44,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:44,674 INFO L471 AbstractCegarLoop]: Abstraction has 44246 states and 59355 transitions. [2024-11-14 03:02:44,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 7 states have internal predecessors, (86), 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) [2024-11-14 03:02:44,675 INFO L276 IsEmpty]: Start isEmpty. Operand 44246 states and 59355 transitions. [2024-11-14 03:02:44,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:44,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:44,686 INFO L215 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] [2024-11-14 03:02:44,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-14 03:02:44,687 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:44,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1467285961, now seen corresponding path program 1 times [2024-11-14 03:02:44,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:44,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542602492] [2024-11-14 03:02:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:44,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:45,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:45,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:45,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542602492] [2024-11-14 03:02:45,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542602492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:45,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:45,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:02:45,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539634809] [2024-11-14 03:02:45,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:45,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:02:45,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:45,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:02:45,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:02:45,092 INFO L87 Difference]: Start difference. First operand 44246 states and 59355 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-14 03:02:47,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:47,358 INFO L93 Difference]: Finished difference Result 70188 states and 93719 transitions. [2024-11-14 03:02:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:02:47,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:47,445 INFO L225 Difference]: With dead ends: 70188 [2024-11-14 03:02:47,445 INFO L226 Difference]: Without dead ends: 56546 [2024-11-14 03:02:47,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:02:47,462 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 3535 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3535 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:47,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3535 Valid, 2563 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1964 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:02:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56546 states. [2024-11-14 03:02:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56546 to 44242. [2024-11-14 03:02:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44242 states, 44241 states have (on average 1.3414479781198436) internal successors, (59347), 44241 states have internal predecessors, (59347), 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) [2024-11-14 03:02:48,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44242 states to 44242 states and 59347 transitions. [2024-11-14 03:02:48,265 INFO L78 Accepts]: Start accepts. Automaton has 44242 states and 59347 transitions. Word has length 87 [2024-11-14 03:02:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:48,265 INFO L471 AbstractCegarLoop]: Abstraction has 44242 states and 59347 transitions. [2024-11-14 03:02:48,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-14 03:02:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 44242 states and 59347 transitions. [2024-11-14 03:02:48,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:48,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:48,281 INFO L215 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] [2024-11-14 03:02:48,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-14 03:02:48,282 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:48,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 544466239, now seen corresponding path program 1 times [2024-11-14 03:02:48,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:48,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398059028] [2024-11-14 03:02:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:48,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:48,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:48,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:48,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398059028] [2024-11-14 03:02:48,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398059028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:48,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:48,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:02:48,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945515862] [2024-11-14 03:02:48,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:48,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:02:48,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:48,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:02:48,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:02:48,682 INFO L87 Difference]: Start difference. First operand 44242 states and 59347 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-14 03:02:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:50,477 INFO L93 Difference]: Finished difference Result 110874 states and 148832 transitions. [2024-11-14 03:02:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:02:50,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:50,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:50,600 INFO L225 Difference]: With dead ends: 110874 [2024-11-14 03:02:50,600 INFO L226 Difference]: Without dead ends: 92328 [2024-11-14 03:02:50,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:02:50,631 INFO L432 NwaCegarLoop]: 545 mSDtfsCounter, 4134 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4134 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:50,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4134 Valid, 1482 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:02:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92328 states. [2024-11-14 03:02:51,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92328 to 44324. [2024-11-14 03:02:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44324 states, 44323 states have (on average 1.3413126367800015) internal successors, (59451), 44323 states have internal predecessors, (59451), 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) [2024-11-14 03:02:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 59451 transitions. [2024-11-14 03:02:51,783 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 59451 transitions. Word has length 87 [2024-11-14 03:02:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:51,783 INFO L471 AbstractCegarLoop]: Abstraction has 44324 states and 59451 transitions. [2024-11-14 03:02:51,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-14 03:02:51,784 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 59451 transitions. [2024-11-14 03:02:51,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:51,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:51,796 INFO L215 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] [2024-11-14 03:02:51,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-14 03:02:51,796 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:51,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:51,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1215457794, now seen corresponding path program 1 times [2024-11-14 03:02:51,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:51,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571589090] [2024-11-14 03:02:51,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:51,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:52,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:52,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571589090] [2024-11-14 03:02:52,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571589090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:52,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:52,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-14 03:02:52,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955540582] [2024-11-14 03:02:52,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:52,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:02:52,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:52,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:02:52,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:02:52,536 INFO L87 Difference]: Start difference. First operand 44324 states and 59451 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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) [2024-11-14 03:02:54,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:54,452 INFO L93 Difference]: Finished difference Result 90540 states and 121705 transitions. [2024-11-14 03:02:54,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:02:54,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:54,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:54,531 INFO L225 Difference]: With dead ends: 90540 [2024-11-14 03:02:54,531 INFO L226 Difference]: Without dead ends: 81012 [2024-11-14 03:02:54,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:02:54,548 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 3509 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3509 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:54,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3509 Valid, 4542 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:02:54,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81012 states. [2024-11-14 03:02:55,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81012 to 44338. [2024-11-14 03:02:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44338 states, 44337 states have (on average 1.3413401899091053) internal successors, (59471), 44337 states have internal predecessors, (59471), 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) [2024-11-14 03:02:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44338 states to 44338 states and 59471 transitions. [2024-11-14 03:02:55,289 INFO L78 Accepts]: Start accepts. Automaton has 44338 states and 59471 transitions. Word has length 87 [2024-11-14 03:02:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:55,290 INFO L471 AbstractCegarLoop]: Abstraction has 44338 states and 59471 transitions. [2024-11-14 03:02:55,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 12 states have internal predecessors, (87), 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) [2024-11-14 03:02:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 44338 states and 59471 transitions. [2024-11-14 03:02:55,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:55,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:55,301 INFO L215 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] [2024-11-14 03:02:55,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-14 03:02:55,301 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:55,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1106847569, now seen corresponding path program 1 times [2024-11-14 03:02:55,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:55,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118879681] [2024-11-14 03:02:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:55,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:55,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118879681] [2024-11-14 03:02:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118879681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:55,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:55,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:02:55,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227375225] [2024-11-14 03:02:55,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:55,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:02:55,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:55,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:02:55,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:02:55,411 INFO L87 Difference]: Start difference. First operand 44338 states and 59471 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-14 03:02:55,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:55,815 INFO L93 Difference]: Finished difference Result 74910 states and 100674 transitions. [2024-11-14 03:02:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:02:55,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:55,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:55,863 INFO L225 Difference]: With dead ends: 74910 [2024-11-14 03:02:55,863 INFO L226 Difference]: Without dead ends: 52972 [2024-11-14 03:02:55,876 INFO L431 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 [2024-11-14 03:02:55,876 INFO L432 NwaCegarLoop]: 1042 mSDtfsCounter, 919 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:55,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 1288 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52972 states. [2024-11-14 03:02:56,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52972 to 42463. [2024-11-14 03:02:56,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42463 states, 42462 states have (on average 1.3403042720550138) internal successors, (56912), 42462 states have internal predecessors, (56912), 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) [2024-11-14 03:02:56,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42463 states to 42463 states and 56912 transitions. [2024-11-14 03:02:56,337 INFO L78 Accepts]: Start accepts. Automaton has 42463 states and 56912 transitions. Word has length 87 [2024-11-14 03:02:56,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:56,338 INFO L471 AbstractCegarLoop]: Abstraction has 42463 states and 56912 transitions. [2024-11-14 03:02:56,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-14 03:02:56,338 INFO L276 IsEmpty]: Start isEmpty. Operand 42463 states and 56912 transitions. [2024-11-14 03:02:56,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:56,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:56,347 INFO L215 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] [2024-11-14 03:02:56,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-14 03:02:56,347 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:56,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:56,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1310490486, now seen corresponding path program 1 times [2024-11-14 03:02:56,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:56,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408868488] [2024-11-14 03:02:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:56,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:57,141 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:57,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408868488] [2024-11-14 03:02:57,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408868488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:57,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:57,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-14 03:02:57,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499242851] [2024-11-14 03:02:57,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:57,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:02:57,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:57,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:02:57,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:02:57,142 INFO L87 Difference]: Start difference. First operand 42463 states and 56912 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 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) [2024-11-14 03:02:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:58,705 INFO L93 Difference]: Finished difference Result 70029 states and 93921 transitions. [2024-11-14 03:02:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:02:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:58,766 INFO L225 Difference]: With dead ends: 70029 [2024-11-14 03:02:58,766 INFO L226 Difference]: Without dead ends: 60962 [2024-11-14 03:02:58,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-14 03:02:58,782 INFO L432 NwaCegarLoop]: 786 mSDtfsCounter, 1868 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 4335 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:58,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 4335 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:02:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60962 states. [2024-11-14 03:02:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60962 to 42470. [2024-11-14 03:02:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42470 states, 42469 states have (on average 1.340318820786927) internal successors, (56922), 42469 states have internal predecessors, (56922), 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) [2024-11-14 03:02:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42470 states to 42470 states and 56922 transitions. [2024-11-14 03:02:59,656 INFO L78 Accepts]: Start accepts. Automaton has 42470 states and 56922 transitions. Word has length 87 [2024-11-14 03:02:59,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:59,656 INFO L471 AbstractCegarLoop]: Abstraction has 42470 states and 56922 transitions. [2024-11-14 03:02:59,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 10 states have internal predecessors, (87), 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) [2024-11-14 03:02:59,656 INFO L276 IsEmpty]: Start isEmpty. Operand 42470 states and 56922 transitions. [2024-11-14 03:02:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-14 03:02:59,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:59,662 INFO L215 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] [2024-11-14 03:02:59,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-14 03:02:59,662 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:02:59,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:59,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2012680523, now seen corresponding path program 1 times [2024-11-14 03:02:59,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:59,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826272138] [2024-11-14 03:02:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:59,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:02:59,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:59,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826272138] [2024-11-14 03:02:59,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826272138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:59,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:59,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:02:59,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656442947] [2024-11-14 03:02:59,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:59,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:02:59,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:59,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:02:59,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:02:59,726 INFO L87 Difference]: Start difference. First operand 42470 states and 56922 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-14 03:02:59,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:59,954 INFO L93 Difference]: Finished difference Result 61510 states and 82550 transitions. [2024-11-14 03:02:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:02:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 87 [2024-11-14 03:02:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:59,994 INFO L225 Difference]: With dead ends: 61510 [2024-11-14 03:02:59,994 INFO L226 Difference]: Without dead ends: 42472 [2024-11-14 03:03:00,007 INFO L431 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 [2024-11-14 03:03:00,007 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 493 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:00,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1893 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:03:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42472 states. [2024-11-14 03:03:00,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42472 to 42470. [2024-11-14 03:03:00,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42470 states, 42469 states have (on average 1.3294402976288586) internal successors, (56460), 42469 states have internal predecessors, (56460), 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) [2024-11-14 03:03:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42470 states to 42470 states and 56460 transitions. [2024-11-14 03:03:00,420 INFO L78 Accepts]: Start accepts. Automaton has 42470 states and 56460 transitions. Word has length 87 [2024-11-14 03:03:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:00,420 INFO L471 AbstractCegarLoop]: Abstraction has 42470 states and 56460 transitions. [2024-11-14 03:03:00,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2024-11-14 03:03:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 42470 states and 56460 transitions. [2024-11-14 03:03:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:03:00,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:00,429 INFO L215 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] [2024-11-14 03:03:00,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-14 03:03:00,429 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:03:00,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash -632809794, now seen corresponding path program 1 times [2024-11-14 03:03:00,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:00,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294006138] [2024-11-14 03:03:00,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:03:00,938 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:00,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294006138] [2024-11-14 03:03:00,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294006138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:00,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:03:00,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:03:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065263420] [2024-11-14 03:03:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:00,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:03:00,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:03:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:03:00,939 INFO L87 Difference]: Start difference. First operand 42470 states and 56460 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-11-14 03:03:02,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:02,716 INFO L93 Difference]: Finished difference Result 62281 states and 82315 transitions. [2024-11-14 03:03:02,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:03:02,716 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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 88 [2024-11-14 03:03:02,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:02,787 INFO L225 Difference]: With dead ends: 62281 [2024-11-14 03:03:02,787 INFO L226 Difference]: Without dead ends: 53311 [2024-11-14 03:03:02,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:03:02,807 INFO L432 NwaCegarLoop]: 628 mSDtfsCounter, 3536 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3536 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:02,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3536 Valid, 2446 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 03:03:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53311 states. [2024-11-14 03:03:03,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53311 to 42466. [2024-11-14 03:03:03,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42466 states, 42465 states have (on average 1.329377134110444) internal successors, (56452), 42465 states have internal predecessors, (56452), 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) [2024-11-14 03:03:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42466 states to 42466 states and 56452 transitions. [2024-11-14 03:03:03,850 INFO L78 Accepts]: Start accepts. Automaton has 42466 states and 56452 transitions. Word has length 88 [2024-11-14 03:03:03,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:03,851 INFO L471 AbstractCegarLoop]: Abstraction has 42466 states and 56452 transitions. [2024-11-14 03:03:03,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 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) [2024-11-14 03:03:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 42466 states and 56452 transitions. [2024-11-14 03:03:03,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:03:03,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:03,867 INFO L215 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] [2024-11-14 03:03:03,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-14 03:03:03,868 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2024-11-14 03:03:03,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:03,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1539280819, now seen corresponding path program 1 times [2024-11-14 03:03:03,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:03,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474669459] [2024-11-14 03:03:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:03,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:03:03,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:03,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474669459] [2024-11-14 03:03:03,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474669459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:03,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:03:03,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:03:03,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515836219] [2024-11-14 03:03:03,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:03,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:03:03,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:03:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:03:03,977 INFO L87 Difference]: Start difference. First operand 42466 states and 56452 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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)