./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d6ca24940c3ee50144301bfe2ad5c39a9e1b17caba3dcee976fe158697f7f6f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:36:33,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:36:33,758 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:36:33,763 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:36:33,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:36:33,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:36:33,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:36:33,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:36:33,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:36:33,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:36:33,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:36:33,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:36:33,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:36:33,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:36:33,786 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:36:33,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:36:33,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:36:33,786 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:36:33,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:36:33,787 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:36:33,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:36:33,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:36:33,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:36:33,788 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:36:33,789 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d6ca24940c3ee50144301bfe2ad5c39a9e1b17caba3dcee976fe158697f7f6f [2024-12-02 07:36:34,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:36:34,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:36:34,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:36:34,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:36:34,034 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:36:34,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-12-02 07:36:36,656 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/data/99c1dbddf/5da1b660683149a9aa8654a760c9a4a0/FLAG3689e85fd [2024-12-02 07:36:37,044 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:36:37,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-12-02 07:36:37,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/data/99c1dbddf/5da1b660683149a9aa8654a760c9a4a0/FLAG3689e85fd [2024-12-02 07:36:37,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/data/99c1dbddf/5da1b660683149a9aa8654a760c9a4a0 [2024-12-02 07:36:37,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:36:37,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:36:37,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:36:37,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:36:37,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:36:37,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:37" (1/1) ... [2024-12-02 07:36:37,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10dc1da0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37, skipping insertion in model container [2024-12-02 07:36:37,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:37" (1/1) ... [2024-12-02 07:36:37,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:36:37,619 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_f3c82274-9acf-40cf-8a89-4d73cbfd471a/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c[26888,26901] [2024-12-02 07:36:37,647 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_f3c82274-9acf-40cf-8a89-4d73cbfd471a/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c[29225,29238] [2024-12-02 07:36:38,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:36:38,248 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:36:38,292 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_f3c82274-9acf-40cf-8a89-4d73cbfd471a/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c[26888,26901] [2024-12-02 07:36:38,296 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_f3c82274-9acf-40cf-8a89-4d73cbfd471a/sv-benchmarks/c/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c[29225,29238] [2024-12-02 07:36:38,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:36:38,744 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:36:38,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38 WrapperNode [2024-12-02 07:36:38,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:36:38,745 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:36:38,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:36:38,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:36:38,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:38,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,088 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5289 [2024-12-02 07:36:39,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:36:39,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:36:39,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:36:39,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:36:39,100 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,146 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,282 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 07:36:39,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,425 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,494 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:36:39,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:36:39,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:36:39,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:36:39,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (1/1) ... [2024-12-02 07:36:39,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:36:39,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:36:39,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:36:39,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c82274-9acf-40cf-8a89-4d73cbfd471a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:36:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:36:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:36:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:36:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:36:39,752 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:36:39,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:36:44,320 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-12-02 07:36:44,320 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:36:44,345 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:36:44,345 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 07:36:44,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:44 BoogieIcfgContainer [2024-12-02 07:36:44,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:36:44,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:36:44,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:36:44,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:36:44,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:36:37" (1/3) ... [2024-12-02 07:36:44,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b48e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:44, skipping insertion in model container [2024-12-02 07:36:44,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:38" (2/3) ... [2024-12-02 07:36:44,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b48e946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:44, skipping insertion in model container [2024-12-02 07:36:44,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:44" (3/3) ... [2024-12-02 07:36:44,355 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-12-02 07:36:44,371 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:36:44,374 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c that has 1 procedures, 949 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 07:36:44,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:36:44,467 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=PETRI_NET, 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;@523bc1b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:36:44,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:36:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 07:36:44,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:44,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:44,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:44,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1142854277, now seen corresponding path program 1 times [2024-12-02 07:36:44,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:44,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073327627] [2024-12-02 07:36:44,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:44,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:44,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:44,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:44,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073327627] [2024-12-02 07:36:44,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073327627] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:44,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:44,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:36:44,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266480847] [2024-12-02 07:36:44,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:44,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:44,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:44,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:44,810 INFO L87 Difference]: Start difference. First operand has 949 states, 946 states have (on average 1.9027484143763214) internal successors, (1800), 948 states have internal predecessors, (1800), 0 states have call successors, (0), 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 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:48,122 INFO L93 Difference]: Finished difference Result 2584 states and 4970 transitions. [2024-12-02 07:36:48,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:48,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2024-12-02 07:36:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:48,139 INFO L225 Difference]: With dead ends: 2584 [2024-12-02 07:36:48,139 INFO L226 Difference]: Without dead ends: 1634 [2024-12-02 07:36:48,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:48,146 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 1043 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:48,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 711 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-12-02 07:36:48,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-12-02 07:36:48,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-12-02 07:36:48,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.650735294117647) internal successors, (2694), 1633 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2694 transitions. [2024-12-02 07:36:48,226 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2694 transitions. Word has length 20 [2024-12-02 07:36:48,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:48,227 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2694 transitions. [2024-12-02 07:36:48,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2694 transitions. [2024-12-02 07:36:48,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 07:36:48,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:48,229 INFO L218 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] [2024-12-02 07:36:48,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:36:48,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:48,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:48,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2101780621, now seen corresponding path program 1 times [2024-12-02 07:36:48,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:48,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861022112] [2024-12-02 07:36:48,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:48,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:48,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:48,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:48,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861022112] [2024-12-02 07:36:48,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861022112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:48,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:48,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:36:48,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180826889] [2024-12-02 07:36:48,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:48,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:36:48,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:48,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:36:48,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:36:48,473 INFO L87 Difference]: Start difference. First operand 1634 states and 2694 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:48,568 INFO L93 Difference]: Finished difference Result 1700 states and 2798 transitions. [2024-12-02 07:36:48,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:36:48,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2024-12-02 07:36:48,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:48,573 INFO L225 Difference]: With dead ends: 1700 [2024-12-02 07:36:48,573 INFO L226 Difference]: Without dead ends: 1634 [2024-12-02 07:36:48,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:36:48,574 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 0 mSDsluCounter, 4929 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6594 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:48,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6594 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:36:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-12-02 07:36:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1634. [2024-12-02 07:36:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1632 states have (on average 1.6133578431372548) internal successors, (2633), 1633 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2633 transitions. [2024-12-02 07:36:48,608 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2633 transitions. Word has length 30 [2024-12-02 07:36:48,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:48,609 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2633 transitions. [2024-12-02 07:36:48,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:48,609 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2633 transitions. [2024-12-02 07:36:48,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 07:36:48,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:48,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:48,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:36:48,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:48,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1651582301, now seen corresponding path program 1 times [2024-12-02 07:36:48,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:48,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145919033] [2024-12-02 07:36:48,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:48,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:48,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:48,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145919033] [2024-12-02 07:36:48,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145919033] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:48,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:48,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:36:48,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443828612] [2024-12-02 07:36:48,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:48,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:36:48,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:48,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:36:48,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:36:48,989 INFO L87 Difference]: Start difference. First operand 1634 states and 2633 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:49,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:49,517 INFO L93 Difference]: Finished difference Result 2626 states and 4233 transitions. [2024-12-02 07:36:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:36:49,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-12-02 07:36:49,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:49,525 INFO L225 Difference]: With dead ends: 2626 [2024-12-02 07:36:49,525 INFO L226 Difference]: Without dead ends: 2564 [2024-12-02 07:36:49,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:36:49,527 INFO L435 NwaCegarLoop]: 1600 mSDtfsCounter, 13578 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13578 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:49,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13578 Valid, 5575 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:36:49,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-12-02 07:36:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1694. [2024-12-02 07:36:49,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1692 states have (on average 1.6134751773049645) internal successors, (2730), 1693 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2730 transitions. [2024-12-02 07:36:49,562 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2730 transitions. Word has length 90 [2024-12-02 07:36:49,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:49,562 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 2730 transitions. [2024-12-02 07:36:49,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:49,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2730 transitions. [2024-12-02 07:36:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-02 07:36:49,565 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:49,565 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:49,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:36:49,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:49,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:49,566 INFO L85 PathProgramCache]: Analyzing trace with hash 71415100, now seen corresponding path program 1 times [2024-12-02 07:36:49,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:49,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621130217] [2024-12-02 07:36:49,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:49,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 07:36:49,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:49,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621130217] [2024-12-02 07:36:49,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621130217] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:49,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:49,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:36:49,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234258616] [2024-12-02 07:36:49,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:49,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:49,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:49,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:49,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:49,726 INFO L87 Difference]: Start difference. First operand 1694 states and 2730 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 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) [2024-12-02 07:36:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:53,174 INFO L93 Difference]: Finished difference Result 4700 states and 7657 transitions. [2024-12-02 07:36:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:53,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 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 91 [2024-12-02 07:36:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:53,182 INFO L225 Difference]: With dead ends: 4700 [2024-12-02 07:36:53,182 INFO L226 Difference]: Without dead ends: 3196 [2024-12-02 07:36:53,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:53,185 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 892 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:53,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 642 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 07:36:53,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2024-12-02 07:36:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3196. [2024-12-02 07:36:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3194 states have (on average 1.4245460237946148) internal successors, (4550), 3195 states have internal predecessors, (4550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4550 transitions. [2024-12-02 07:36:53,232 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4550 transitions. Word has length 91 [2024-12-02 07:36:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:53,233 INFO L471 AbstractCegarLoop]: Abstraction has 3196 states and 4550 transitions. [2024-12-02 07:36:53,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 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) [2024-12-02 07:36:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4550 transitions. [2024-12-02 07:36:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 07:36:53,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:53,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:53,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:36:53,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:53,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:53,235 INFO L85 PathProgramCache]: Analyzing trace with hash 551619955, now seen corresponding path program 1 times [2024-12-02 07:36:53,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:53,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049160282] [2024-12-02 07:36:53,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:53,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:53,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:53,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049160282] [2024-12-02 07:36:53,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049160282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:53,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:53,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:53,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780911934] [2024-12-02 07:36:53,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:53,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:53,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:53,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:53,368 INFO L87 Difference]: Start difference. First operand 3196 states and 4550 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:53,410 INFO L93 Difference]: Finished difference Result 3429 states and 4925 transitions. [2024-12-02 07:36:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:53,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-12-02 07:36:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:53,417 INFO L225 Difference]: With dead ends: 3429 [2024-12-02 07:36:53,418 INFO L226 Difference]: Without dead ends: 3307 [2024-12-02 07:36:53,419 INFO L434 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 [2024-12-02 07:36:53,419 INFO L435 NwaCegarLoop]: 1602 mSDtfsCounter, 1508 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:53,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1695 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:53,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2024-12-02 07:36:53,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3303. [2024-12-02 07:36:53,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3301 states have (on average 1.429869736443502) internal successors, (4720), 3302 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:53,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4720 transitions. [2024-12-02 07:36:53,465 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4720 transitions. Word has length 92 [2024-12-02 07:36:53,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:53,465 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 4720 transitions. [2024-12-02 07:36:53,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4720 transitions. [2024-12-02 07:36:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 07:36:53,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:53,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:53,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:36:53,467 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:53,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:53,467 INFO L85 PathProgramCache]: Analyzing trace with hash 618113467, now seen corresponding path program 1 times [2024-12-02 07:36:53,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141800566] [2024-12-02 07:36:53,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:54,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:54,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141800566] [2024-12-02 07:36:54,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141800566] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:54,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:36:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663357648] [2024-12-02 07:36:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:54,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:36:54,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:54,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:36:54,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:36:54,069 INFO L87 Difference]: Start difference. First operand 3303 states and 4720 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:54,553 INFO L93 Difference]: Finished difference Result 3534 states and 5088 transitions. [2024-12-02 07:36:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:36:54,553 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-12-02 07:36:54,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:54,562 INFO L225 Difference]: With dead ends: 3534 [2024-12-02 07:36:54,562 INFO L226 Difference]: Without dead ends: 3305 [2024-12-02 07:36:54,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:36:54,564 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 10647 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10647 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:54,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10647 Valid, 2278 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:36:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-12-02 07:36:54,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3303. [2024-12-02 07:36:54,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 3301 states have (on average 1.4292638594365343) internal successors, (4718), 3302 states have internal predecessors, (4718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 4718 transitions. [2024-12-02 07:36:54,607 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 4718 transitions. Word has length 92 [2024-12-02 07:36:54,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:54,607 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 4718 transitions. [2024-12-02 07:36:54,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,608 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 4718 transitions. [2024-12-02 07:36:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 07:36:54,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:54,609 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:54,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:36:54,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:54,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:54,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1566925479, now seen corresponding path program 1 times [2024-12-02 07:36:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:54,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406751211] [2024-12-02 07:36:54,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:54,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:54,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:54,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406751211] [2024-12-02 07:36:54,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406751211] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:54,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:54,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:36:54,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022221935] [2024-12-02 07:36:54,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:54,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:36:54,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:54,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:36:54,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:36:54,816 INFO L87 Difference]: Start difference. First operand 3303 states and 4718 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:54,854 INFO L93 Difference]: Finished difference Result 3311 states and 4727 transitions. [2024-12-02 07:36:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:36:54,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-12-02 07:36:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:54,862 INFO L225 Difference]: With dead ends: 3311 [2024-12-02 07:36:54,862 INFO L226 Difference]: Without dead ends: 3309 [2024-12-02 07:36:54,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:36:54,864 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4800 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:54,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6403 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:54,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3309 states. [2024-12-02 07:36:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3309 to 3309. [2024-12-02 07:36:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3307 states have (on average 1.428182642878742) internal successors, (4723), 3308 states have internal predecessors, (4723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 4723 transitions. [2024-12-02 07:36:54,911 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 4723 transitions. Word has length 93 [2024-12-02 07:36:54,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:54,911 INFO L471 AbstractCegarLoop]: Abstraction has 3309 states and 4723 transitions. [2024-12-02 07:36:54,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 4723 transitions. [2024-12-02 07:36:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:54,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:54,912 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:54,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:36:54,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:54,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash -401487589, now seen corresponding path program 1 times [2024-12-02 07:36:54,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429462765] [2024-12-02 07:36:54,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:55,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:55,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429462765] [2024-12-02 07:36:55,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429462765] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:55,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:55,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:55,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923164844] [2024-12-02 07:36:55,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:55,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:55,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:55,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:55,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:55,011 INFO L87 Difference]: Start difference. First operand 3309 states and 4723 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:55,050 INFO L93 Difference]: Finished difference Result 3763 states and 5435 transitions. [2024-12-02 07:36:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:55,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:55,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:55,060 INFO L225 Difference]: With dead ends: 3763 [2024-12-02 07:36:55,060 INFO L226 Difference]: Without dead ends: 3528 [2024-12-02 07:36:55,061 INFO L434 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 [2024-12-02 07:36:55,062 INFO L435 NwaCegarLoop]: 1683 mSDtfsCounter, 1527 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:55,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:55,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2024-12-02 07:36:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526. [2024-12-02 07:36:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3524 states have (on average 1.4358683314415437) internal successors, (5060), 3525 states have internal predecessors, (5060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5060 transitions. [2024-12-02 07:36:55,129 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5060 transitions. Word has length 94 [2024-12-02 07:36:55,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:55,129 INFO L471 AbstractCegarLoop]: Abstraction has 3526 states and 5060 transitions. [2024-12-02 07:36:55,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5060 transitions. [2024-12-02 07:36:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:55,131 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:55,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:55,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:36:55,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:55,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:55,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581915, now seen corresponding path program 1 times [2024-12-02 07:36:55,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:55,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103162320] [2024-12-02 07:36:55,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:55,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:55,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:55,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103162320] [2024-12-02 07:36:55,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103162320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:55,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:55,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:55,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451408888] [2024-12-02 07:36:55,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:55,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:55,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:55,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:55,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:55,229 INFO L87 Difference]: Start difference. First operand 3526 states and 5060 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:55,277 INFO L93 Difference]: Finished difference Result 4398 states and 6418 transitions. [2024-12-02 07:36:55,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:55,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:55,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:55,288 INFO L225 Difference]: With dead ends: 4398 [2024-12-02 07:36:55,288 INFO L226 Difference]: Without dead ends: 3946 [2024-12-02 07:36:55,290 INFO L434 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 [2024-12-02 07:36:55,291 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 1525 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:55,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:55,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2024-12-02 07:36:55,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3944. [2024-12-02 07:36:55,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3944 states, 3942 states have (on average 1.4464738711314054) internal successors, (5702), 3943 states have internal predecessors, (5702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5702 transitions. [2024-12-02 07:36:55,375 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 5702 transitions. Word has length 94 [2024-12-02 07:36:55,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:55,375 INFO L471 AbstractCegarLoop]: Abstraction has 3944 states and 5702 transitions. [2024-12-02 07:36:55,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 5702 transitions. [2024-12-02 07:36:55,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:55,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:55,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:55,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:36:55,377 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:55,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:55,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1967352859, now seen corresponding path program 1 times [2024-12-02 07:36:55,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:55,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704936254] [2024-12-02 07:36:55,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:55,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:55,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704936254] [2024-12-02 07:36:55,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704936254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:55,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:55,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:55,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928606855] [2024-12-02 07:36:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:55,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:55,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:55,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:55,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:55,443 INFO L87 Difference]: Start difference. First operand 3944 states and 5702 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:55,487 INFO L93 Difference]: Finished difference Result 5620 states and 8288 transitions. [2024-12-02 07:36:55,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:55,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:55,499 INFO L225 Difference]: With dead ends: 5620 [2024-12-02 07:36:55,499 INFO L226 Difference]: Without dead ends: 4750 [2024-12-02 07:36:55,501 INFO L434 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 [2024-12-02 07:36:55,502 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 1521 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:55,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1786 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4750 states. [2024-12-02 07:36:55,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4748. [2024-12-02 07:36:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4748 states, 4746 states have (on average 1.4584913611462285) internal successors, (6922), 4747 states have internal predecessors, (6922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4748 states to 4748 states and 6922 transitions. [2024-12-02 07:36:55,571 INFO L78 Accepts]: Start accepts. Automaton has 4748 states and 6922 transitions. Word has length 94 [2024-12-02 07:36:55,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:55,571 INFO L471 AbstractCegarLoop]: Abstraction has 4748 states and 6922 transitions. [2024-12-02 07:36:55,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4748 states and 6922 transitions. [2024-12-02 07:36:55,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:55,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:55,572 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:55,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:36:55,573 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:55,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1089352421, now seen corresponding path program 1 times [2024-12-02 07:36:55,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:55,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218629871] [2024-12-02 07:36:55,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:55,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:55,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218629871] [2024-12-02 07:36:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218629871] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:55,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:55,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803186470] [2024-12-02 07:36:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:55,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:55,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:55,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:55,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:55,637 INFO L87 Difference]: Start difference. First operand 4748 states and 6922 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:55,693 INFO L93 Difference]: Finished difference Result 7968 states and 11836 transitions. [2024-12-02 07:36:55,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:55,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:55,704 INFO L225 Difference]: With dead ends: 7968 [2024-12-02 07:36:55,704 INFO L226 Difference]: Without dead ends: 6294 [2024-12-02 07:36:55,706 INFO L434 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 [2024-12-02 07:36:55,707 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 1519 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:55,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1788 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6294 states. [2024-12-02 07:36:55,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 6292. [2024-12-02 07:36:55,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 6290 states have (on average 1.4680445151033386) internal successors, (9234), 6291 states have internal predecessors, (9234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 9234 transitions. [2024-12-02 07:36:55,798 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 9234 transitions. Word has length 94 [2024-12-02 07:36:55,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:55,798 INFO L471 AbstractCegarLoop]: Abstraction has 6292 states and 9234 transitions. [2024-12-02 07:36:55,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,799 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 9234 transitions. [2024-12-02 07:36:55,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:55,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:55,799 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:55,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:36:55,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:55,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:55,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1523888357, now seen corresponding path program 1 times [2024-12-02 07:36:55,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008114831] [2024-12-02 07:36:55,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:55,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:55,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:55,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008114831] [2024-12-02 07:36:55,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008114831] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:55,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:55,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:55,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188715414] [2024-12-02 07:36:55,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:55,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:55,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:55,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:55,866 INFO L87 Difference]: Start difference. First operand 6292 states and 9234 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:55,947 INFO L93 Difference]: Finished difference Result 12472 states and 18548 transitions. [2024-12-02 07:36:55,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:55,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:55,962 INFO L225 Difference]: With dead ends: 12472 [2024-12-02 07:36:55,962 INFO L226 Difference]: Without dead ends: 9254 [2024-12-02 07:36:55,966 INFO L434 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 [2024-12-02 07:36:55,967 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1515 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:55,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1784 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:55,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9254 states. [2024-12-02 07:36:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9254 to 9252. [2024-12-02 07:36:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9252 states, 9250 states have (on average 1.4704864864864864) internal successors, (13602), 9251 states have internal predecessors, (13602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9252 states to 9252 states and 13602 transitions. [2024-12-02 07:36:56,182 INFO L78 Accepts]: Start accepts. Automaton has 9252 states and 13602 transitions. Word has length 94 [2024-12-02 07:36:56,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:56,182 INFO L471 AbstractCegarLoop]: Abstraction has 9252 states and 13602 transitions. [2024-12-02 07:36:56,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9252 states and 13602 transitions. [2024-12-02 07:36:56,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:56,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:56,183 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:56,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:36:56,183 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:56,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:56,183 INFO L85 PathProgramCache]: Analyzing trace with hash 990146075, now seen corresponding path program 1 times [2024-12-02 07:36:56,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:56,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167206574] [2024-12-02 07:36:56,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167206574] [2024-12-02 07:36:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167206574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:56,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:56,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:56,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669226556] [2024-12-02 07:36:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:56,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:56,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:56,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:56,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:56,243 INFO L87 Difference]: Start difference. First operand 9252 states and 13602 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:56,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:56,379 INFO L93 Difference]: Finished difference Result 21096 states and 31204 transitions. [2024-12-02 07:36:56,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:56,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:56,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:56,402 INFO L225 Difference]: With dead ends: 21096 [2024-12-02 07:36:56,402 INFO L226 Difference]: Without dead ends: 14918 [2024-12-02 07:36:56,409 INFO L434 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 [2024-12-02 07:36:56,410 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 1517 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:56,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1790 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:56,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14918 states. [2024-12-02 07:36:56,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14918 to 14916. [2024-12-02 07:36:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14916 states, 14914 states have (on average 1.463457154351616) internal successors, (21826), 14915 states have internal predecessors, (21826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:56,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14916 states to 14916 states and 21826 transitions. [2024-12-02 07:36:56,632 INFO L78 Accepts]: Start accepts. Automaton has 14916 states and 21826 transitions. Word has length 94 [2024-12-02 07:36:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:56,632 INFO L471 AbstractCegarLoop]: Abstraction has 14916 states and 21826 transitions. [2024-12-02 07:36:56,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 14916 states and 21826 transitions. [2024-12-02 07:36:56,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 07:36:56,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:56,633 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:56,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:36:56,634 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:56,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:56,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1703496475, now seen corresponding path program 1 times [2024-12-02 07:36:56,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:56,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331705224] [2024-12-02 07:36:56,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:56,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:56,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:56,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:56,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331705224] [2024-12-02 07:36:56,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331705224] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:56,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:56,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:36:56,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136907258] [2024-12-02 07:36:56,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:56,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:56,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:56,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:56,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:56,697 INFO L87 Difference]: Start difference. First operand 14916 states and 21826 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:57,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:36:57,086 INFO L93 Difference]: Finished difference Result 37576 states and 54980 transitions. [2024-12-02 07:36:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:36:57,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-12-02 07:36:57,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:36:57,143 INFO L225 Difference]: With dead ends: 37576 [2024-12-02 07:36:57,143 INFO L226 Difference]: Without dead ends: 25734 [2024-12-02 07:36:57,156 INFO L434 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 [2024-12-02 07:36:57,156 INFO L435 NwaCegarLoop]: 1679 mSDtfsCounter, 1523 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:36:57,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1792 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:36:57,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25734 states. [2024-12-02 07:36:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25734 to 25732. [2024-12-02 07:36:57,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25732 states, 25730 states have (on average 1.4477263894286825) internal successors, (37250), 25731 states have internal predecessors, (37250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25732 states to 25732 states and 37250 transitions. [2024-12-02 07:36:57,791 INFO L78 Accepts]: Start accepts. Automaton has 25732 states and 37250 transitions. Word has length 94 [2024-12-02 07:36:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:36:57,791 INFO L471 AbstractCegarLoop]: Abstraction has 25732 states and 37250 transitions. [2024-12-02 07:36:57,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:36:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 25732 states and 37250 transitions. [2024-12-02 07:36:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 07:36:57,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:36:57,793 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:36:57,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:36:57,793 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:36:57,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:36:57,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1897921850, now seen corresponding path program 1 times [2024-12-02 07:36:57,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:36:57,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476114236] [2024-12-02 07:36:57,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:36:57,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:36:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:36:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:36:57,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:36:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476114236] [2024-12-02 07:36:57,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476114236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:36:57,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:36:57,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:36:57,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296143687] [2024-12-02 07:36:57,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:36:57,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:36:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:36:57,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:36:57,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:36:57,887 INFO L87 Difference]: Start difference. First operand 25732 states and 37250 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:01,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:01,111 INFO L93 Difference]: Finished difference Result 31742 states and 45817 transitions. [2024-12-02 07:37:01,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:37:01,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2024-12-02 07:37:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:01,154 INFO L225 Difference]: With dead ends: 31742 [2024-12-02 07:37:01,154 INFO L226 Difference]: Without dead ends: 28736 [2024-12-02 07:37:01,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:37:01,161 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 940 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:01,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 615 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 07:37:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28736 states. [2024-12-02 07:37:01,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28736 to 28736. [2024-12-02 07:37:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28736 states, 28734 states have (on average 1.418076146725134) internal successors, (40747), 28735 states have internal predecessors, (40747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:01,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28736 states to 28736 states and 40747 transitions. [2024-12-02 07:37:01,771 INFO L78 Accepts]: Start accepts. Automaton has 28736 states and 40747 transitions. Word has length 95 [2024-12-02 07:37:01,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:01,771 INFO L471 AbstractCegarLoop]: Abstraction has 28736 states and 40747 transitions. [2024-12-02 07:37:01,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:01,771 INFO L276 IsEmpty]: Start isEmpty. Operand 28736 states and 40747 transitions. [2024-12-02 07:37:01,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-02 07:37:01,772 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:01,772 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:01,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:37:01,772 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:01,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:01,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1087415530, now seen corresponding path program 1 times [2024-12-02 07:37:01,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:01,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595484403] [2024-12-02 07:37:01,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:01,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:37:01,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:01,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595484403] [2024-12-02 07:37:01,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595484403] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:01,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:01,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:37:01,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967793550] [2024-12-02 07:37:01,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:01,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:37:01,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:01,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:37:01,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:37:01,833 INFO L87 Difference]: Start difference. First operand 28736 states and 40747 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:02,288 INFO L93 Difference]: Finished difference Result 52295 states and 75313 transitions. [2024-12-02 07:37:02,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:37:02,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-12-02 07:37:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:02,330 INFO L225 Difference]: With dead ends: 52295 [2024-12-02 07:37:02,330 INFO L226 Difference]: Without dead ends: 39748 [2024-12-02 07:37:02,342 INFO L434 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 [2024-12-02 07:37:02,343 INFO L435 NwaCegarLoop]: 1688 mSDtfsCounter, 1526 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:02,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:37:02,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39748 states. [2024-12-02 07:37:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39748 to 39746. [2024-12-02 07:37:02,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39746 states, 39744 states have (on average 1.4214221014492754) internal successors, (56493), 39745 states have internal predecessors, (56493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:03,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39746 states to 39746 states and 56493 transitions. [2024-12-02 07:37:03,025 INFO L78 Accepts]: Start accepts. Automaton has 39746 states and 56493 transitions. Word has length 96 [2024-12-02 07:37:03,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:03,025 INFO L471 AbstractCegarLoop]: Abstraction has 39746 states and 56493 transitions. [2024-12-02 07:37:03,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:03,025 INFO L276 IsEmpty]: Start isEmpty. Operand 39746 states and 56493 transitions. [2024-12-02 07:37:03,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 07:37:03,026 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:03,026 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:03,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:37:03,026 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:03,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash -721875691, now seen corresponding path program 1 times [2024-12-02 07:37:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:03,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118680265] [2024-12-02 07:37:03,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:03,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:03,112 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:37:03,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:03,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118680265] [2024-12-02 07:37:03,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118680265] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:03,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:03,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:37:03,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120158331] [2024-12-02 07:37:03,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:03,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:37:03,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:03,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:37:03,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:37:03,114 INFO L87 Difference]: Start difference. First operand 39746 states and 56493 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:06,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:06,321 INFO L93 Difference]: Finished difference Result 51766 states and 72055 transitions. [2024-12-02 07:37:06,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:37:06,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-12-02 07:37:06,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:06,367 INFO L225 Difference]: With dead ends: 51766 [2024-12-02 07:37:06,367 INFO L226 Difference]: Without dead ends: 45756 [2024-12-02 07:37:06,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:37:06,375 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 1076 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:06,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 519 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 07:37:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45756 states. [2024-12-02 07:37:06,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45756 to 45003. [2024-12-02 07:37:06,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45003 states, 45001 states have (on average 1.3898357814270794) internal successors, (62544), 45002 states have internal predecessors, (62544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45003 states to 45003 states and 62544 transitions. [2024-12-02 07:37:07,033 INFO L78 Accepts]: Start accepts. Automaton has 45003 states and 62544 transitions. Word has length 101 [2024-12-02 07:37:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:07,033 INFO L471 AbstractCegarLoop]: Abstraction has 45003 states and 62544 transitions. [2024-12-02 07:37:07,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 45003 states and 62544 transitions. [2024-12-02 07:37:07,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:37:07,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:07,040 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:07,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:37:07,040 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:07,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 54573310, now seen corresponding path program 1 times [2024-12-02 07:37:07,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:07,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592616204] [2024-12-02 07:37:07,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:07,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:07,482 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 07:37:07,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:07,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592616204] [2024-12-02 07:37:07,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592616204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:07,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:07,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:07,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871467951] [2024-12-02 07:37:07,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:07,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:07,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:07,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:07,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:07,485 INFO L87 Difference]: Start difference. First operand 45003 states and 62544 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:10,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:10,910 INFO L93 Difference]: Finished difference Result 321117 states and 461145 transitions. [2024-12-02 07:37:10,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:37:10,910 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-12-02 07:37:10,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:11,215 INFO L225 Difference]: With dead ends: 321117 [2024-12-02 07:37:11,215 INFO L226 Difference]: Without dead ends: 287451 [2024-12-02 07:37:11,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:37:11,268 INFO L435 NwaCegarLoop]: 1706 mSDtfsCounter, 11840 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11840 SdHoareTripleChecker+Valid, 4973 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:11,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11840 Valid, 4973 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:37:11,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287451 states. [2024-12-02 07:37:14,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287451 to 78667. [2024-12-02 07:37:14,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78667 states, 78665 states have (on average 1.4085044174664718) internal successors, (110800), 78666 states have internal predecessors, (110800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78667 states to 78667 states and 110800 transitions. [2024-12-02 07:37:14,622 INFO L78 Accepts]: Start accepts. Automaton has 78667 states and 110800 transitions. Word has length 119 [2024-12-02 07:37:14,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:14,622 INFO L471 AbstractCegarLoop]: Abstraction has 78667 states and 110800 transitions. [2024-12-02 07:37:14,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 78667 states and 110800 transitions. [2024-12-02 07:37:14,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:37:14,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:14,632 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:14,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:37:14,633 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:14,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1996642814, now seen corresponding path program 1 times [2024-12-02 07:37:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:14,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573677675] [2024-12-02 07:37:14,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:14,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 07:37:14,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573677675] [2024-12-02 07:37:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573677675] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:14,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211128119] [2024-12-02 07:37:14,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:14,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:14,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:14,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:14,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:14,995 INFO L87 Difference]: Start difference. First operand 78667 states and 110800 transitions. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:20,089 INFO L93 Difference]: Finished difference Result 354781 states and 509401 transitions. [2024-12-02 07:37:20,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:37:20,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 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 119 [2024-12-02 07:37:20,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:20,476 INFO L225 Difference]: With dead ends: 354781 [2024-12-02 07:37:20,476 INFO L226 Difference]: Without dead ends: 321115 [2024-12-02 07:37:20,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:37:20,537 INFO L435 NwaCegarLoop]: 1703 mSDtfsCounter, 11882 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11882 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:20,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11882 Valid, 4839 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:37:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321115 states. [2024-12-02 07:37:25,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321115 to 129227. [2024-12-02 07:37:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129227 states, 129225 states have (on average 1.415082220932482) internal successors, (182864), 129226 states have internal predecessors, (182864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129227 states to 129227 states and 182864 transitions. [2024-12-02 07:37:25,426 INFO L78 Accepts]: Start accepts. Automaton has 129227 states and 182864 transitions. Word has length 119 [2024-12-02 07:37:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:25,426 INFO L471 AbstractCegarLoop]: Abstraction has 129227 states and 182864 transitions. [2024-12-02 07:37:25,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:25,426 INFO L276 IsEmpty]: Start isEmpty. Operand 129227 states and 182864 transitions. [2024-12-02 07:37:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:37:25,433 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:25,433 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:25,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:37:25,433 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1871553538, now seen corresponding path program 1 times [2024-12-02 07:37:25,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:25,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866416317] [2024-12-02 07:37:25,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:25,679 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 07:37:25,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866416317] [2024-12-02 07:37:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866416317] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:25,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159680058] [2024-12-02 07:37:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:25,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:25,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:25,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:25,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:25,680 INFO L87 Difference]: Start difference. First operand 129227 states and 182864 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:32,691 INFO L93 Difference]: Finished difference Result 388445 states and 557657 transitions. [2024-12-02 07:37:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:37:32,691 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 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 119 [2024-12-02 07:37:32,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:33,052 INFO L225 Difference]: With dead ends: 388445 [2024-12-02 07:37:33,052 INFO L226 Difference]: Without dead ends: 354779 [2024-12-02 07:37:33,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:37:33,111 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 11959 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11959 SdHoareTripleChecker+Valid, 4800 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:33,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11959 Valid, 4800 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:37:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354779 states. [2024-12-02 07:37:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354779 to 162891. [2024-12-02 07:37:37,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162891 states, 162889 states have (on average 1.4188803418278706) internal successors, (231120), 162890 states have internal predecessors, (231120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162891 states to 162891 states and 231120 transitions. [2024-12-02 07:37:38,124 INFO L78 Accepts]: Start accepts. Automaton has 162891 states and 231120 transitions. Word has length 119 [2024-12-02 07:37:38,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:38,125 INFO L471 AbstractCegarLoop]: Abstraction has 162891 states and 231120 transitions. [2024-12-02 07:37:38,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:38,125 INFO L276 IsEmpty]: Start isEmpty. Operand 162891 states and 231120 transitions. [2024-12-02 07:37:38,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:37:38,129 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:38,129 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:38,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:37:38,130 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:38,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:38,130 INFO L85 PathProgramCache]: Analyzing trace with hash -633291522, now seen corresponding path program 1 times [2024-12-02 07:37:38,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:38,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128158981] [2024-12-02 07:37:38,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:38,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 07:37:38,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:38,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128158981] [2024-12-02 07:37:38,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128158981] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:38,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:38,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:38,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255881568] [2024-12-02 07:37:38,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:38,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:38,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:38,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:38,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:38,376 INFO L87 Difference]: Start difference. First operand 162891 states and 231120 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:37:47,246 INFO L93 Difference]: Finished difference Result 422109 states and 605913 transitions. [2024-12-02 07:37:47,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:37:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 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 119 [2024-12-02 07:37:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:37:47,644 INFO L225 Difference]: With dead ends: 422109 [2024-12-02 07:37:47,644 INFO L226 Difference]: Without dead ends: 388443 [2024-12-02 07:37:47,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:37:47,702 INFO L435 NwaCegarLoop]: 1697 mSDtfsCounter, 12181 mSDsluCounter, 3037 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12181 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:37:47,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12181 Valid, 4734 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:37:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388443 states. [2024-12-02 07:37:53,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388443 to 196555. [2024-12-02 07:37:53,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196555 states, 196553 states have (on average 1.4213774401815287) internal successors, (279376), 196554 states have internal predecessors, (279376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:53,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196555 states to 196555 states and 279376 transitions. [2024-12-02 07:37:53,962 INFO L78 Accepts]: Start accepts. Automaton has 196555 states and 279376 transitions. Word has length 119 [2024-12-02 07:37:53,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:37:53,962 INFO L471 AbstractCegarLoop]: Abstraction has 196555 states and 279376 transitions. [2024-12-02 07:37:53,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:37:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 196555 states and 279376 transitions. [2024-12-02 07:37:53,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:37:53,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:37:53,968 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:37:53,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:37:53,968 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:37:53,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:37:53,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1067827458, now seen corresponding path program 1 times [2024-12-02 07:37:53,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:37:53,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409593533] [2024-12-02 07:37:53,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:37:53,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:37:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:37:54,140 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 07:37:54,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:37:54,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409593533] [2024-12-02 07:37:54,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409593533] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:37:54,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:37:54,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:37:54,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722292603] [2024-12-02 07:37:54,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:37:54,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:37:54,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:37:54,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:37:54,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:37:54,142 INFO L87 Difference]: Start difference. First operand 196555 states and 279376 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:03,159 INFO L93 Difference]: Finished difference Result 455773 states and 654169 transitions. [2024-12-02 07:38:03,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:38:03,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 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 119 [2024-12-02 07:38:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:03,678 INFO L225 Difference]: With dead ends: 455773 [2024-12-02 07:38:03,679 INFO L226 Difference]: Without dead ends: 422107 [2024-12-02 07:38:03,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:38:03,767 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 12022 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12022 SdHoareTripleChecker+Valid, 4801 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:03,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12022 Valid, 4801 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:38:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422107 states. [2024-12-02 07:38:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422107 to 230219. [2024-12-02 07:38:10,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230219 states, 230217 states have (on average 1.4231442508589722) internal successors, (327632), 230218 states have internal predecessors, (327632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:11,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230219 states to 230219 states and 327632 transitions. [2024-12-02 07:38:11,247 INFO L78 Accepts]: Start accepts. Automaton has 230219 states and 327632 transitions. Word has length 119 [2024-12-02 07:38:11,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:11,248 INFO L471 AbstractCegarLoop]: Abstraction has 230219 states and 327632 transitions. [2024-12-02 07:38:11,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:11,248 INFO L276 IsEmpty]: Start isEmpty. Operand 230219 states and 327632 transitions. [2024-12-02 07:38:11,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:38:11,255 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:11,255 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:11,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:38:11,256 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:11,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:11,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1446206974, now seen corresponding path program 1 times [2024-12-02 07:38:11,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:11,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505152663] [2024-12-02 07:38:11,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:11,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-02 07:38:11,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:11,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505152663] [2024-12-02 07:38:11,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505152663] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:11,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:11,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:38:11,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841277986] [2024-12-02 07:38:11,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:11,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:38:11,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:11,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:38:11,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:38:11,500 INFO L87 Difference]: Start difference. First operand 230219 states and 327632 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:22,824 INFO L93 Difference]: Finished difference Result 489437 states and 702425 transitions. [2024-12-02 07:38:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:38:22,825 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 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 119 [2024-12-02 07:38:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:23,329 INFO L225 Difference]: With dead ends: 489437 [2024-12-02 07:38:23,329 INFO L226 Difference]: Without dead ends: 455771 [2024-12-02 07:38:23,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:38:23,396 INFO L435 NwaCegarLoop]: 1702 mSDtfsCounter, 11791 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11791 SdHoareTripleChecker+Valid, 4949 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:23,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11791 Valid, 4949 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:38:23,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455771 states. [2024-12-02 07:38:31,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455771 to 263883. [2024-12-02 07:38:31,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263883 states, 263881 states have (on average 1.4244602680753824) internal successors, (375888), 263882 states have internal predecessors, (375888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:31,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263883 states to 263883 states and 375888 transitions. [2024-12-02 07:38:31,705 INFO L78 Accepts]: Start accepts. Automaton has 263883 states and 375888 transitions. Word has length 119 [2024-12-02 07:38:31,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:31,706 INFO L471 AbstractCegarLoop]: Abstraction has 263883 states and 375888 transitions. [2024-12-02 07:38:31,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 263883 states and 375888 transitions. [2024-12-02 07:38:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:38:31,711 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:31,711 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:31,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:38:31,711 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:31,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash -2135409922, now seen corresponding path program 1 times [2024-12-02 07:38:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:31,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088861176] [2024-12-02 07:38:31,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:31,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-12-02 07:38:32,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:32,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088861176] [2024-12-02 07:38:32,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088861176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:32,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:32,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:38:32,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86953594] [2024-12-02 07:38:32,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:32,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:38:32,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:32,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:38:32,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:38:32,109 INFO L87 Difference]: Start difference. First operand 263883 states and 375888 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:43,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:38:43,774 INFO L93 Difference]: Finished difference Result 523101 states and 750681 transitions. [2024-12-02 07:38:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:38:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 119 [2024-12-02 07:38:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:38:44,303 INFO L225 Difference]: With dead ends: 523101 [2024-12-02 07:38:44,303 INFO L226 Difference]: Without dead ends: 489435 [2024-12-02 07:38:44,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:38:44,375 INFO L435 NwaCegarLoop]: 1705 mSDtfsCounter, 11754 mSDsluCounter, 3517 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11754 SdHoareTripleChecker+Valid, 5222 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:38:44,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11754 Valid, 5222 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:38:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489435 states. [2024-12-02 07:38:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489435 to 297547. [2024-12-02 07:38:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297547 states, 297545 states have (on average 1.4254784990505638) internal successors, (424144), 297546 states have internal predecessors, (424144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297547 states to 297547 states and 424144 transitions. [2024-12-02 07:38:54,950 INFO L78 Accepts]: Start accepts. Automaton has 297547 states and 424144 transitions. Word has length 119 [2024-12-02 07:38:54,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:38:54,950 INFO L471 AbstractCegarLoop]: Abstraction has 297547 states and 424144 transitions. [2024-12-02 07:38:54,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:38:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 297547 states and 424144 transitions. [2024-12-02 07:38:54,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 07:38:54,959 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:38:54,960 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:38:54,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:38:54,960 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:38:54,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:38:54,960 INFO L85 PathProgramCache]: Analyzing trace with hash -443851434, now seen corresponding path program 1 times [2024-12-02 07:38:54,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:38:54,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460586031] [2024-12-02 07:38:54,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:38:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:38:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:38:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:38:55,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:38:55,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460586031] [2024-12-02 07:38:55,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460586031] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:38:55,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:38:55,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:38:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862405674] [2024-12-02 07:38:55,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:38:55,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:38:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:38:55,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:38:55,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:38:55,045 INFO L87 Difference]: Start difference. First operand 297547 states and 424144 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:00,731 INFO L93 Difference]: Finished difference Result 497769 states and 713581 transitions. [2024-12-02 07:39:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:39:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-12-02 07:39:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:00,986 INFO L225 Difference]: With dead ends: 497769 [2024-12-02 07:39:00,986 INFO L226 Difference]: Without dead ends: 211559 [2024-12-02 07:39:01,078 INFO L434 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 [2024-12-02 07:39:01,078 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 74 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:01,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3261 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:39:01,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211559 states. [2024-12-02 07:39:07,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211559 to 211557. [2024-12-02 07:39:07,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211557 states, 211555 states have (on average 1.423563612299402) internal successors, (301162), 211556 states have internal predecessors, (301162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211557 states to 211557 states and 301162 transitions. [2024-12-02 07:39:07,660 INFO L78 Accepts]: Start accepts. Automaton has 211557 states and 301162 transitions. Word has length 121 [2024-12-02 07:39:07,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:07,661 INFO L471 AbstractCegarLoop]: Abstraction has 211557 states and 301162 transitions. [2024-12-02 07:39:07,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:07,661 INFO L276 IsEmpty]: Start isEmpty. Operand 211557 states and 301162 transitions. [2024-12-02 07:39:07,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 07:39:07,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:07,666 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:39:07,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:39:07,666 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:07,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:07,667 INFO L85 PathProgramCache]: Analyzing trace with hash -899555783, now seen corresponding path program 1 times [2024-12-02 07:39:07,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:07,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873708612] [2024-12-02 07:39:07,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:07,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 07:39:07,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873708612] [2024-12-02 07:39:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873708612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:07,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:07,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:39:07,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484290777] [2024-12-02 07:39:07,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:07,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:39:07,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:07,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:39:07,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:39:07,877 INFO L87 Difference]: Start difference. First operand 211557 states and 301162 transitions. Second operand has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:18,496 INFO L93 Difference]: Finished difference Result 399991 states and 573555 transitions. [2024-12-02 07:39:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:39:18,497 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 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 121 [2024-12-02 07:39:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:19,039 INFO L225 Difference]: With dead ends: 399991 [2024-12-02 07:39:19,039 INFO L226 Difference]: Without dead ends: 376437 [2024-12-02 07:39:19,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:39:19,069 INFO L435 NwaCegarLoop]: 1695 mSDtfsCounter, 11850 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11850 SdHoareTripleChecker+Valid, 5337 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:19,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11850 Valid, 5337 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:39:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376437 states. [2024-12-02 07:39:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376437 to 235109. [2024-12-02 07:39:26,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235109 states, 235107 states have (on average 1.4246874827206335) internal successors, (334954), 235108 states have internal predecessors, (334954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235109 states to 235109 states and 334954 transitions. [2024-12-02 07:39:26,883 INFO L78 Accepts]: Start accepts. Automaton has 235109 states and 334954 transitions. Word has length 121 [2024-12-02 07:39:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:26,883 INFO L471 AbstractCegarLoop]: Abstraction has 235109 states and 334954 transitions. [2024-12-02 07:39:26,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.0) internal successors, (120), 10 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 235109 states and 334954 transitions. [2024-12-02 07:39:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 07:39:26,888 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:26,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:39:26,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:39:26,888 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:26,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:26,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1397045798, now seen corresponding path program 1 times [2024-12-02 07:39:26,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:26,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339882791] [2024-12-02 07:39:26,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:26,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:39:26,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:26,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339882791] [2024-12-02 07:39:26,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339882791] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:26,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:26,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:39:26,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253107230] [2024-12-02 07:39:26,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:26,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:39:26,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:26,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:39:26,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:39:26,970 INFO L87 Difference]: Start difference. First operand 235109 states and 334954 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:30,512 INFO L93 Difference]: Finished difference Result 346985 states and 495468 transitions. [2024-12-02 07:39:30,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:39:30,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-12-02 07:39:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:30,639 INFO L225 Difference]: With dead ends: 346985 [2024-12-02 07:39:30,639 INFO L226 Difference]: Without dead ends: 123239 [2024-12-02 07:39:30,712 INFO L434 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 [2024-12-02 07:39:30,712 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 69 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 3246 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:30,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 3246 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:39:30,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123239 states. [2024-12-02 07:39:34,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123239 to 123237. [2024-12-02 07:39:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123237 states, 123235 states have (on average 1.4056558607538443) internal successors, (173226), 123236 states have internal predecessors, (173226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:34,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123237 states to 123237 states and 173226 transitions. [2024-12-02 07:39:34,413 INFO L78 Accepts]: Start accepts. Automaton has 123237 states and 173226 transitions. Word has length 122 [2024-12-02 07:39:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:34,413 INFO L471 AbstractCegarLoop]: Abstraction has 123237 states and 173226 transitions. [2024-12-02 07:39:34,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 123237 states and 173226 transitions. [2024-12-02 07:39:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 07:39:34,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:34,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:39:34,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:39:34,417 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:34,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1061877844, now seen corresponding path program 1 times [2024-12-02 07:39:34,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:34,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938793755] [2024-12-02 07:39:34,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:39:34,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:34,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938793755] [2024-12-02 07:39:34,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938793755] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:34,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:34,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:39:34,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869041483] [2024-12-02 07:39:34,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:34,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:39:34,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:34,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:39:34,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:39:34,502 INFO L87 Difference]: Start difference. First operand 123237 states and 173226 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:36,286 INFO L93 Difference]: Finished difference Result 179177 states and 252876 transitions. [2024-12-02 07:39:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:39:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-12-02 07:39:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:36,335 INFO L225 Difference]: With dead ends: 179177 [2024-12-02 07:39:36,335 INFO L226 Difference]: Without dead ends: 67303 [2024-12-02 07:39:36,362 INFO L434 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 [2024-12-02 07:39:36,362 INFO L435 NwaCegarLoop]: 1656 mSDtfsCounter, 66 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 3231 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:36,362 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 3231 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:39:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67303 states. [2024-12-02 07:39:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67303 to 67301. [2024-12-02 07:39:38,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67301 states, 67299 states have (on average 1.3814469754379708) internal successors, (92970), 67300 states have internal predecessors, (92970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67301 states to 67301 states and 92970 transitions. [2024-12-02 07:39:38,210 INFO L78 Accepts]: Start accepts. Automaton has 67301 states and 92970 transitions. Word has length 124 [2024-12-02 07:39:38,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:39:38,210 INFO L471 AbstractCegarLoop]: Abstraction has 67301 states and 92970 transitions. [2024-12-02 07:39:38,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 67301 states and 92970 transitions. [2024-12-02 07:39:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 07:39:38,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:39:38,214 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:39:38,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:39:38,214 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:39:38,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:39:38,215 INFO L85 PathProgramCache]: Analyzing trace with hash -890972162, now seen corresponding path program 1 times [2024-12-02 07:39:38,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:39:38,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344198254] [2024-12-02 07:39:38,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:39:38,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:39:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:39:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:39:38,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:39:38,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344198254] [2024-12-02 07:39:38,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344198254] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:39:38,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:39:38,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:39:38,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812199687] [2024-12-02 07:39:38,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:39:38,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:39:38,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:39:38,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:39:38,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:39:38,342 INFO L87 Difference]: Start difference. First operand 67301 states and 92970 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:39:39,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:39:39,155 INFO L93 Difference]: Finished difference Result 95273 states and 132492 transitions. [2024-12-02 07:39:39,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:39:39,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-12-02 07:39:39,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:39:39,199 INFO L225 Difference]: With dead ends: 95273 [2024-12-02 07:39:39,199 INFO L226 Difference]: Without dead ends: 39335 [2024-12-02 07:39:39,228 INFO L434 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 [2024-12-02 07:39:39,228 INFO L435 NwaCegarLoop]: 1649 mSDtfsCounter, 63 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:39:39,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 3216 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:39:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39335 states.