./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/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_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/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 64bit --witnessprinter.graph.data.programhash 7bde93bb9490f426cc00c5abf6aa323b39ee4fa09aca9d9da99295eb6b5b5c36 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:50:32,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:50:32,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:50:32,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:50:32,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:50:32,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:50:32,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:50:32,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:50:32,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:50:32,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:50:32,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:50:32,615 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:50:32,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:50:32,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:50:32,615 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:50:32,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:50:32,616 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:50:32,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:32,617 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:50:32,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:32,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:50:32,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:50:32,619 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_618fe56a-6558-4f3c-a7af-6e7a4118b48b/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bde93bb9490f426cc00c5abf6aa323b39ee4fa09aca9d9da99295eb6b5b5c36 [2024-12-02 11:50:32,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:50:32,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:50:32,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:50:32,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:50:32,911 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:50:32,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c [2024-12-02 11:50:36,090 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/data/57c3c4055/9951098059e54d3cab25654ef5fc669f/FLAG443f72c13 [2024-12-02 11:50:36,548 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:50:36,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c [2024-12-02 11:50:36,582 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/data/57c3c4055/9951098059e54d3cab25654ef5fc669f/FLAG443f72c13 [2024-12-02 11:50:36,680 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/data/57c3c4055/9951098059e54d3cab25654ef5fc669f [2024-12-02 11:50:36,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:50:36,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:50:36,686 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:50:36,686 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:50:36,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:50:36,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:50:36" (1/1) ... [2024-12-02 11:50:36,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3115d2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:36, skipping insertion in model container [2024-12-02 11:50:36,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:50:36" (1/1) ... [2024-12-02 11:50:36,771 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:50:36,965 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_618fe56a-6558-4f3c-a7af-6e7a4118b48b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c[1175,1188] [2024-12-02 11:50:37,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:50:37,534 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:50:37,545 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_618fe56a-6558-4f3c-a7af-6e7a4118b48b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.elevator.5.prop1-func-interl.c[1175,1188] [2024-12-02 11:50:37,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:50:37,933 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:50:37,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37 WrapperNode [2024-12-02 11:50:37,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:50:37,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:50:37,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:50:37,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:50:37,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:38,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:39,411 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15109 [2024-12-02 11:50:39,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:50:39,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:50:39,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:50:39,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:50:39,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:39,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:39,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,028 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 11:50:40,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,386 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,589 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:50:40,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:50:40,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:50:40,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:50:40,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (1/1) ... [2024-12-02 11:50:40,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:40,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:50:40,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:50:40,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618fe56a-6558-4f3c-a7af-6e7a4118b48b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:50:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:50:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:50:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:50:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:50:41,791 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:50:41,793 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:51:04,653 INFO L? ?]: Removed 8509 outVars from TransFormulas that were not future-live. [2024-12-02 11:51:04,653 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:51:04,741 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:51:04,742 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 11:51:04,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:51:04 BoogieIcfgContainer [2024-12-02 11:51:04,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:51:04,746 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:51:04,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:51:04,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:51:04,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:50:36" (1/3) ... [2024-12-02 11:51:04,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263282db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:51:04, skipping insertion in model container [2024-12-02 11:51:04,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:37" (2/3) ... [2024-12-02 11:51:04,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263282db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:51:04, skipping insertion in model container [2024-12-02 11:51:04,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:51:04" (3/3) ... [2024-12-02 11:51:04,754 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.elevator.5.prop1-func-interl.c [2024-12-02 11:51:04,773 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:51:04,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.elevator.5.prop1-func-interl.c that has 1 procedures, 5240 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:51:04,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:51:04,975 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;@413fda07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:51:04,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:51:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 5240 states, 5238 states have (on average 1.5) internal successors, (7857), 5239 states have internal predecessors, (7857), 0 states have call successors, (0), 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 11:51:05,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-12-02 11:51:05,017 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:05,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:05,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:05,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash 944616264, now seen corresponding path program 1 times [2024-12-02 11:51:05,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:05,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878956453] [2024-12-02 11:51:05,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:05,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:07,107 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 11:51:07,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:07,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878956453] [2024-12-02 11:51:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878956453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:07,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:07,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:51:07,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484009731] [2024-12-02 11:51:07,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:07,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:51:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:07,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:51:07,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:07,158 INFO L87 Difference]: Start difference. First operand has 5240 states, 5238 states have (on average 1.5) internal successors, (7857), 5239 states have internal predecessors, (7857), 0 states have call successors, (0), 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 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 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 11:51:14,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:14,608 INFO L93 Difference]: Finished difference Result 15146 states and 22717 transitions. [2024-12-02 11:51:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:51:14,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 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 275 [2024-12-02 11:51:14,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:14,668 INFO L225 Difference]: With dead ends: 15146 [2024-12-02 11:51:14,668 INFO L226 Difference]: Without dead ends: 10184 [2024-12-02 11:51:14,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:14,686 INFO L435 NwaCegarLoop]: 5887 mSDtfsCounter, 7568 mSDsluCounter, 17311 mSDsCounter, 0 mSdLazyCounter, 7799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7568 SdHoareTripleChecker+Valid, 23198 SdHoareTripleChecker+Invalid, 7800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:14,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7568 Valid, 23198 Invalid, 7800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7799 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-12-02 11:51:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10184 states. [2024-12-02 11:51:14,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10184 to 5492. [2024-12-02 11:51:14,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 1.4995447095246768) internal successors, (8234), 5491 states have internal predecessors, (8234), 0 states have call successors, (0), 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 11:51:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 8234 transitions. [2024-12-02 11:51:14,983 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 8234 transitions. Word has length 275 [2024-12-02 11:51:14,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:14,985 INFO L471 AbstractCegarLoop]: Abstraction has 5492 states and 8234 transitions. [2024-12-02 11:51:14,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 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 11:51:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 8234 transitions. [2024-12-02 11:51:14,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-12-02 11:51:14,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:14,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:14,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:51:14,994 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:14,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:14,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1183751387, now seen corresponding path program 1 times [2024-12-02 11:51:14,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:14,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261555107] [2024-12-02 11:51:14,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:14,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:16,223 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 11:51:16,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:16,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261555107] [2024-12-02 11:51:16,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261555107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:16,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:16,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:51:16,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262449440] [2024-12-02 11:51:16,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:16,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:51:16,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:16,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:51:16,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:51:16,228 INFO L87 Difference]: Start difference. First operand 5492 states and 8234 transitions. Second operand has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 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 11:51:16,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:16,402 INFO L93 Difference]: Finished difference Result 5496 states and 8238 transitions. [2024-12-02 11:51:16,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:51:16,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 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 277 [2024-12-02 11:51:16,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:16,423 INFO L225 Difference]: With dead ends: 5496 [2024-12-02 11:51:16,423 INFO L226 Difference]: Without dead ends: 5494 [2024-12-02 11:51:16,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:51:16,427 INFO L435 NwaCegarLoop]: 7851 mSDtfsCounter, 0 mSDsluCounter, 15696 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23547 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:16,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23547 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:16,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5494 states. [2024-12-02 11:51:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5494 to 5494. [2024-12-02 11:51:16,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5494 states, 5493 states have (on average 1.4993628254141635) internal successors, (8236), 5493 states have internal predecessors, (8236), 0 states have call successors, (0), 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 11:51:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5494 states to 5494 states and 8236 transitions. [2024-12-02 11:51:16,578 INFO L78 Accepts]: Start accepts. Automaton has 5494 states and 8236 transitions. Word has length 277 [2024-12-02 11:51:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:16,579 INFO L471 AbstractCegarLoop]: Abstraction has 5494 states and 8236 transitions. [2024-12-02 11:51:16,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.25) internal successors, (277), 4 states have internal predecessors, (277), 0 states have call successors, (0), 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 11:51:16,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5494 states and 8236 transitions. [2024-12-02 11:51:16,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 11:51:16,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:16,586 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:16,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:51:16,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:16,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:16,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1960109575, now seen corresponding path program 1 times [2024-12-02 11:51:16,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:16,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894867073] [2024-12-02 11:51:16,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:16,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:17,114 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 11:51:17,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:17,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894867073] [2024-12-02 11:51:17,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894867073] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:17,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:17,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:51:17,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015509076] [2024-12-02 11:51:17,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:17,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:51:17,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:17,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:51:17,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:51:17,117 INFO L87 Difference]: Start difference. First operand 5494 states and 8236 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 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 11:51:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:17,310 INFO L93 Difference]: Finished difference Result 10457 states and 15678 transitions. [2024-12-02 11:51:17,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:51:17,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 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 278 [2024-12-02 11:51:17,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:17,330 INFO L225 Difference]: With dead ends: 10457 [2024-12-02 11:51:17,331 INFO L226 Difference]: Without dead ends: 5496 [2024-12-02 11:51:17,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:51:17,339 INFO L435 NwaCegarLoop]: 7851 mSDtfsCounter, 0 mSDsluCounter, 15692 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23543 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:17,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23543 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:17,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2024-12-02 11:51:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 5496. [2024-12-02 11:51:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5496 states, 5495 states have (on average 1.4991810737033666) internal successors, (8238), 5495 states have internal predecessors, (8238), 0 states have call successors, (0), 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 11:51:17,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5496 states to 5496 states and 8238 transitions. [2024-12-02 11:51:17,490 INFO L78 Accepts]: Start accepts. Automaton has 5496 states and 8238 transitions. Word has length 278 [2024-12-02 11:51:17,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:17,491 INFO L471 AbstractCegarLoop]: Abstraction has 5496 states and 8238 transitions. [2024-12-02 11:51:17,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 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 11:51:17,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5496 states and 8238 transitions. [2024-12-02 11:51:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-12-02 11:51:17,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:17,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:17,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:51:17,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:17,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash -464109506, now seen corresponding path program 1 times [2024-12-02 11:51:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:17,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063171901] [2024-12-02 11:51:17,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:17,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:18,307 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 11:51:18,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:18,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063171901] [2024-12-02 11:51:18,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063171901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:18,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:18,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:51:18,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571891806] [2024-12-02 11:51:18,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:18,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:51:18,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:18,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:51:18,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:18,310 INFO L87 Difference]: Start difference. First operand 5496 states and 8238 transitions. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 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 11:51:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:18,565 INFO L93 Difference]: Finished difference Result 10468 states and 15691 transitions. [2024-12-02 11:51:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:51:18,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 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 279 [2024-12-02 11:51:18,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:18,587 INFO L225 Difference]: With dead ends: 10468 [2024-12-02 11:51:18,587 INFO L226 Difference]: Without dead ends: 5505 [2024-12-02 11:51:18,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:18,595 INFO L435 NwaCegarLoop]: 7850 mSDtfsCounter, 2 mSDsluCounter, 23538 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31388 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:18,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31388 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:51:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5505 states. [2024-12-02 11:51:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5505 to 5505. [2024-12-02 11:51:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5505 states, 5504 states have (on average 1.4987281976744187) internal successors, (8249), 5504 states have internal predecessors, (8249), 0 states have call successors, (0), 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 11:51:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 8249 transitions. [2024-12-02 11:51:18,739 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 8249 transitions. Word has length 279 [2024-12-02 11:51:18,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:18,740 INFO L471 AbstractCegarLoop]: Abstraction has 5505 states and 8249 transitions. [2024-12-02 11:51:18,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 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 11:51:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 8249 transitions. [2024-12-02 11:51:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-12-02 11:51:18,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:18,747 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:18,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:51:18,748 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:18,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:18,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1982272911, now seen corresponding path program 1 times [2024-12-02 11:51:18,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:18,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043278453] [2024-12-02 11:51:18,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:18,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:19,588 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 11:51:19,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:19,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043278453] [2024-12-02 11:51:19,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043278453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:19,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:19,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:51:19,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585168790] [2024-12-02 11:51:19,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:19,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:51:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:19,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:51:19,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:19,591 INFO L87 Difference]: Start difference. First operand 5505 states and 8249 transitions. Second operand has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 0 states have call successors, (0), 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 11:51:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:19,834 INFO L93 Difference]: Finished difference Result 14724 states and 22070 transitions. [2024-12-02 11:51:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:51:19,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 0 states have call successors, (0), 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 280 [2024-12-02 11:51:19,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:19,858 INFO L225 Difference]: With dead ends: 14724 [2024-12-02 11:51:19,858 INFO L226 Difference]: Without dead ends: 9750 [2024-12-02 11:51:19,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:19,867 INFO L435 NwaCegarLoop]: 7846 mSDtfsCounter, 6900 mSDsluCounter, 23117 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6900 SdHoareTripleChecker+Valid, 30963 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:19,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6900 Valid, 30963 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:51:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2024-12-02 11:51:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 5500. [2024-12-02 11:51:19,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 5499 states have (on average 1.4988179669030732) internal successors, (8242), 5499 states have internal predecessors, (8242), 0 states have call successors, (0), 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 11:51:19,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 8242 transitions. [2024-12-02 11:51:19,998 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 8242 transitions. Word has length 280 [2024-12-02 11:51:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:19,998 INFO L471 AbstractCegarLoop]: Abstraction has 5500 states and 8242 transitions. [2024-12-02 11:51:19,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 0 states have call successors, (0), 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 11:51:19,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 8242 transitions. [2024-12-02 11:51:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2758 [2024-12-02 11:51:20,098 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:20,099 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:20,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:51:20,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:20,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash 809573531, now seen corresponding path program 1 times [2024-12-02 11:51:20,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:20,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153297502] [2024-12-02 11:51:20,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:20,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:31,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:31,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153297502] [2024-12-02 11:51:31,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153297502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:31,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:31,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:51:31,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396773915] [2024-12-02 11:51:31,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:31,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:51:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:31,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:51:31,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:31,341 INFO L87 Difference]: Start difference. First operand 5500 states and 8242 transitions. Second operand has 6 states, 6 states have (on average 459.5) internal successors, (2757), 6 states have internal predecessors, (2757), 0 states have call successors, (0), 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 11:51:31,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:31,930 INFO L93 Difference]: Finished difference Result 22750 states and 34109 transitions. [2024-12-02 11:51:31,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:51:31,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 459.5) internal successors, (2757), 6 states have internal predecessors, (2757), 0 states have call successors, (0), 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 2757 [2024-12-02 11:51:31,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:31,985 INFO L225 Difference]: With dead ends: 22750 [2024-12-02 11:51:31,985 INFO L226 Difference]: Without dead ends: 17781 [2024-12-02 11:51:31,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:51:31,997 INFO L435 NwaCegarLoop]: 14593 mSDtfsCounter, 16234 mSDsluCounter, 51608 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16234 SdHoareTripleChecker+Valid, 66201 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:31,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16234 Valid, 66201 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:51:32,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17781 states. [2024-12-02 11:51:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17781 to 9863. [2024-12-02 11:51:32,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9863 states, 9862 states have (on average 1.4991888055161224) internal successors, (14785), 9862 states have internal predecessors, (14785), 0 states have call successors, (0), 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 11:51:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9863 states to 9863 states and 14785 transitions. [2024-12-02 11:51:32,401 INFO L78 Accepts]: Start accepts. Automaton has 9863 states and 14785 transitions. Word has length 2757 [2024-12-02 11:51:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:32,405 INFO L471 AbstractCegarLoop]: Abstraction has 9863 states and 14785 transitions. [2024-12-02 11:51:32,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.5) internal successors, (2757), 6 states have internal predecessors, (2757), 0 states have call successors, (0), 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 11:51:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9863 states and 14785 transitions. [2024-12-02 11:51:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2759 [2024-12-02 11:51:32,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:32,482 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:32,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:51:32,482 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:32,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash -54913955, now seen corresponding path program 1 times [2024-12-02 11:51:32,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:32,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108872171] [2024-12-02 11:51:32,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:32,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:40,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:40,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108872171] [2024-12-02 11:51:40,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108872171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:40,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:40,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:51:40,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402577038] [2024-12-02 11:51:40,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:40,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:51:40,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:40,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:51:40,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:40,411 INFO L87 Difference]: Start difference. First operand 9863 states and 14785 transitions. Second operand has 5 states, 5 states have (on average 551.6) internal successors, (2758), 5 states have internal predecessors, (2758), 0 states have call successors, (0), 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 11:51:40,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:40,584 INFO L93 Difference]: Finished difference Result 19197 states and 28780 transitions. [2024-12-02 11:51:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:51:40,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 551.6) internal successors, (2758), 5 states have internal predecessors, (2758), 0 states have call successors, (0), 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 2758 [2024-12-02 11:51:40,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:40,608 INFO L225 Difference]: With dead ends: 19197 [2024-12-02 11:51:40,608 INFO L226 Difference]: Without dead ends: 9865 [2024-12-02 11:51:40,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:40,618 INFO L435 NwaCegarLoop]: 7851 mSDtfsCounter, 0 mSDsluCounter, 15686 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23537 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:40,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23537 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:40,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9865 states. [2024-12-02 11:51:40,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9865 to 9865. [2024-12-02 11:51:40,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9865 states, 9864 states have (on average 1.4990875912408759) internal successors, (14787), 9864 states have internal predecessors, (14787), 0 states have call successors, (0), 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 11:51:40,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9865 states to 9865 states and 14787 transitions. [2024-12-02 11:51:40,786 INFO L78 Accepts]: Start accepts. Automaton has 9865 states and 14787 transitions. Word has length 2758 [2024-12-02 11:51:40,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:40,786 INFO L471 AbstractCegarLoop]: Abstraction has 9865 states and 14787 transitions. [2024-12-02 11:51:40,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 551.6) internal successors, (2758), 5 states have internal predecessors, (2758), 0 states have call successors, (0), 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 11:51:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 9865 states and 14787 transitions. [2024-12-02 11:51:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2760 [2024-12-02 11:51:40,968 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:40,970 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:40,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:51:40,970 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:40,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:40,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1335741516, now seen corresponding path program 1 times [2024-12-02 11:51:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:40,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900200772] [2024-12-02 11:51:40,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:40,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:50,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900200772] [2024-12-02 11:51:50,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900200772] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:50,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:50,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:51:50,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122678245] [2024-12-02 11:51:50,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:50,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:51:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:50,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:51:50,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:51:50,303 INFO L87 Difference]: Start difference. First operand 9865 states and 14787 transitions. Second operand has 6 states, 6 states have (on average 459.8333333333333) internal successors, (2759), 6 states have internal predecessors, (2759), 0 states have call successors, (0), 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 11:51:50,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:50,836 INFO L93 Difference]: Finished difference Result 43211 states and 64790 transitions. [2024-12-02 11:51:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:51:50,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 459.8333333333333) internal successors, (2759), 6 states have internal predecessors, (2759), 0 states have call successors, (0), 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 2759 [2024-12-02 11:51:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:50,893 INFO L225 Difference]: With dead ends: 43211 [2024-12-02 11:51:50,894 INFO L226 Difference]: Without dead ends: 33877 [2024-12-02 11:51:50,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:51:50,906 INFO L435 NwaCegarLoop]: 14527 mSDtfsCounter, 16360 mSDsluCounter, 51410 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16360 SdHoareTripleChecker+Valid, 65937 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:50,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16360 Valid, 65937 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:51:50,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33877 states. [2024-12-02 11:51:51,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33877 to 9969. [2024-12-02 11:51:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9969 states, 9968 states have (on average 1.4990971107544142) internal successors, (14943), 9968 states have internal predecessors, (14943), 0 states have call successors, (0), 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 11:51:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9969 states to 9969 states and 14943 transitions. [2024-12-02 11:51:51,108 INFO L78 Accepts]: Start accepts. Automaton has 9969 states and 14943 transitions. Word has length 2759 [2024-12-02 11:51:51,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:51,109 INFO L471 AbstractCegarLoop]: Abstraction has 9969 states and 14943 transitions. [2024-12-02 11:51:51,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 459.8333333333333) internal successors, (2759), 6 states have internal predecessors, (2759), 0 states have call successors, (0), 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 11:51:51,110 INFO L276 IsEmpty]: Start isEmpty. Operand 9969 states and 14943 transitions. [2024-12-02 11:51:51,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2761 [2024-12-02 11:51:51,151 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:51,152 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:51,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:51:51,152 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:51,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1996088684, now seen corresponding path program 1 times [2024-12-02 11:51:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:51,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670582267] [2024-12-02 11:51:51,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:51,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:58,745 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:58,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:58,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670582267] [2024-12-02 11:51:58,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670582267] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:58,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:58,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:51:58,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277894746] [2024-12-02 11:51:58,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:58,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:51:58,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:58,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:51:58,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:58,753 INFO L87 Difference]: Start difference. First operand 9969 states and 14943 transitions. Second operand has 5 states, 5 states have (on average 552.0) internal successors, (2760), 5 states have internal predecessors, (2760), 0 states have call successors, (0), 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 11:51:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:58,861 INFO L93 Difference]: Finished difference Result 19409 states and 29096 transitions. [2024-12-02 11:51:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:51:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 552.0) internal successors, (2760), 5 states have internal predecessors, (2760), 0 states have call successors, (0), 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 2760 [2024-12-02 11:51:58,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:58,872 INFO L225 Difference]: With dead ends: 19409 [2024-12-02 11:51:58,873 INFO L226 Difference]: Without dead ends: 9971 [2024-12-02 11:51:58,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:51:58,882 INFO L435 NwaCegarLoop]: 7851 mSDtfsCounter, 0 mSDsluCounter, 15686 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23537 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:58,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23537 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9971 states. [2024-12-02 11:51:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9971 to 9971. [2024-12-02 11:51:58,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9971 states, 9970 states have (on average 1.4989969909729188) internal successors, (14945), 9970 states have internal predecessors, (14945), 0 states have call successors, (0), 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 11:51:59,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9971 states to 9971 states and 14945 transitions. [2024-12-02 11:51:59,006 INFO L78 Accepts]: Start accepts. Automaton has 9971 states and 14945 transitions. Word has length 2760 [2024-12-02 11:51:59,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:59,007 INFO L471 AbstractCegarLoop]: Abstraction has 9971 states and 14945 transitions. [2024-12-02 11:51:59,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 552.0) internal successors, (2760), 5 states have internal predecessors, (2760), 0 states have call successors, (0), 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 11:51:59,008 INFO L276 IsEmpty]: Start isEmpty. Operand 9971 states and 14945 transitions. [2024-12-02 11:51:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2762 [2024-12-02 11:51:59,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:59,051 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:59,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:51:59,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:59,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1230261453, now seen corresponding path program 1 times [2024-12-02 11:51:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671892003] [2024-12-02 11:51:59,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:59,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-12-02 11:52:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:06,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671892003] [2024-12-02 11:52:06,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671892003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:06,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:06,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:52:06,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036806761] [2024-12-02 11:52:06,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:06,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:52:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:06,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:52:06,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:52:06,136 INFO L87 Difference]: Start difference. First operand 9971 states and 14945 transitions. Second operand has 4 states, 4 states have (on average 658.75) internal successors, (2635), 4 states have internal predecessors, (2635), 0 states have call successors, (0), 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 11:52:06,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:06,244 INFO L93 Difference]: Finished difference Result 19415 states and 29102 transitions. [2024-12-02 11:52:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:52:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 658.75) internal successors, (2635), 4 states have internal predecessors, (2635), 0 states have call successors, (0), 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 2761 [2024-12-02 11:52:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:06,259 INFO L225 Difference]: With dead ends: 19415 [2024-12-02 11:52:06,259 INFO L226 Difference]: Without dead ends: 9975 [2024-12-02 11:52:06,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:52:06,266 INFO L435 NwaCegarLoop]: 7853 mSDtfsCounter, 0 mSDsluCounter, 15687 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23540 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:06,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23540 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:52:06,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9975 states. [2024-12-02 11:52:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9975 to 9971. [2024-12-02 11:52:06,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9971 states, 9970 states have (on average 1.4989969909729188) internal successors, (14945), 9970 states have internal predecessors, (14945), 0 states have call successors, (0), 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 11:52:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9971 states to 9971 states and 14945 transitions. [2024-12-02 11:52:06,380 INFO L78 Accepts]: Start accepts. Automaton has 9971 states and 14945 transitions. Word has length 2761 [2024-12-02 11:52:06,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:06,382 INFO L471 AbstractCegarLoop]: Abstraction has 9971 states and 14945 transitions. [2024-12-02 11:52:06,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 658.75) internal successors, (2635), 4 states have internal predecessors, (2635), 0 states have call successors, (0), 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 11:52:06,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9971 states and 14945 transitions. [2024-12-02 11:52:06,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2763 [2024-12-02 11:52:06,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:06,487 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:06,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:52:06,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:06,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash 392287935, now seen corresponding path program 1 times [2024-12-02 11:52:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582476546] [2024-12-02 11:52:06,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:06,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:19,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:19,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582476546] [2024-12-02 11:52:19,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582476546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:19,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:19,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:52:19,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421945099] [2024-12-02 11:52:19,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:19,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:52:19,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:19,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:52:19,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:52:19,787 INFO L87 Difference]: Start difference. First operand 9971 states and 14945 transitions. Second operand has 5 states, 5 states have (on average 552.4) internal successors, (2762), 5 states have internal predecessors, (2762), 0 states have call successors, (0), 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 11:52:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:19,989 INFO L93 Difference]: Finished difference Result 19422 states and 29115 transitions. [2024-12-02 11:52:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:52:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 552.4) internal successors, (2762), 5 states have internal predecessors, (2762), 0 states have call successors, (0), 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 2762 [2024-12-02 11:52:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:20,002 INFO L225 Difference]: With dead ends: 19422 [2024-12-02 11:52:20,002 INFO L226 Difference]: Without dead ends: 9982 [2024-12-02 11:52:20,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:52:20,010 INFO L435 NwaCegarLoop]: 7826 mSDtfsCounter, 7436 mSDsluCounter, 15645 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7436 SdHoareTripleChecker+Valid, 23471 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:20,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7436 Valid, 23471 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:52:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9982 states. [2024-12-02 11:52:20,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9982 to 9973. [2024-12-02 11:52:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9973 states, 9972 states have (on average 1.498896911351785) internal successors, (14947), 9972 states have internal predecessors, (14947), 0 states have call successors, (0), 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 11:52:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9973 states to 9973 states and 14947 transitions. [2024-12-02 11:52:20,144 INFO L78 Accepts]: Start accepts. Automaton has 9973 states and 14947 transitions. Word has length 2762 [2024-12-02 11:52:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:20,144 INFO L471 AbstractCegarLoop]: Abstraction has 9973 states and 14947 transitions. [2024-12-02 11:52:20,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 552.4) internal successors, (2762), 5 states have internal predecessors, (2762), 0 states have call successors, (0), 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 11:52:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 9973 states and 14947 transitions. [2024-12-02 11:52:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2764 [2024-12-02 11:52:20,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:20,186 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:20,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:52:20,186 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:20,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:20,188 INFO L85 PathProgramCache]: Analyzing trace with hash 656191050, now seen corresponding path program 1 times [2024-12-02 11:52:20,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:20,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001970570] [2024-12-02 11:52:20,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:20,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:26,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001970570] [2024-12-02 11:52:26,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001970570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:26,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:52:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690639870] [2024-12-02 11:52:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:26,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:52:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:26,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:52:26,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:52:26,427 INFO L87 Difference]: Start difference. First operand 9973 states and 14947 transitions. Second operand has 4 states, 4 states have (on average 690.75) internal successors, (2763), 4 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:26,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:26,586 INFO L93 Difference]: Finished difference Result 19416 states and 29105 transitions. [2024-12-02 11:52:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:52:26,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 690.75) internal successors, (2763), 4 states have internal predecessors, (2763), 0 states have call successors, (0), 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 2763 [2024-12-02 11:52:26,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:26,593 INFO L225 Difference]: With dead ends: 19416 [2024-12-02 11:52:26,593 INFO L226 Difference]: Without dead ends: 9974 [2024-12-02 11:52:26,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:52:26,599 INFO L435 NwaCegarLoop]: 7815 mSDtfsCounter, 7411 mSDsluCounter, 7808 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7411 SdHoareTripleChecker+Valid, 15623 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:26,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7411 Valid, 15623 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:52:26,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9974 states. [2024-12-02 11:52:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9974 to 9974. [2024-12-02 11:52:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9974 states, 9973 states have (on average 1.4987466158628295) internal successors, (14947), 9973 states have internal predecessors, (14947), 0 states have call successors, (0), 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 11:52:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9974 states to 9974 states and 14947 transitions. [2024-12-02 11:52:26,698 INFO L78 Accepts]: Start accepts. Automaton has 9974 states and 14947 transitions. Word has length 2763 [2024-12-02 11:52:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:26,699 INFO L471 AbstractCegarLoop]: Abstraction has 9974 states and 14947 transitions. [2024-12-02 11:52:26,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 690.75) internal successors, (2763), 4 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 9974 states and 14947 transitions. [2024-12-02 11:52:26,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2764 [2024-12-02 11:52:26,740 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:26,743 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:26,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:52:26,744 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:26,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1199384099, now seen corresponding path program 1 times [2024-12-02 11:52:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985755249] [2024-12-02 11:52:26,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:36,541 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:36,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:36,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985755249] [2024-12-02 11:52:36,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985755249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:36,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:36,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:52:36,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203788570] [2024-12-02 11:52:36,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:36,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:52:36,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:36,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:52:36,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:52:36,545 INFO L87 Difference]: Start difference. First operand 9974 states and 14947 transitions. Second operand has 8 states, 8 states have (on average 345.375) internal successors, (2763), 8 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:36,929 INFO L93 Difference]: Finished difference Result 22806 states and 34181 transitions. [2024-12-02 11:52:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:52:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 345.375) internal successors, (2763), 8 states have internal predecessors, (2763), 0 states have call successors, (0), 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 2763 [2024-12-02 11:52:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:36,939 INFO L225 Difference]: With dead ends: 22806 [2024-12-02 11:52:36,939 INFO L226 Difference]: Without dead ends: 13363 [2024-12-02 11:52:36,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:52:36,946 INFO L435 NwaCegarLoop]: 7826 mSDtfsCounter, 15304 mSDsluCounter, 31259 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15304 SdHoareTripleChecker+Valid, 39085 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:36,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15304 Valid, 39085 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:52:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13363 states. [2024-12-02 11:52:37,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13363 to 9980. [2024-12-02 11:52:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4988475799178274) internal successors, (14957), 9979 states have internal predecessors, (14957), 0 states have call successors, (0), 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 11:52:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14957 transitions. [2024-12-02 11:52:37,062 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14957 transitions. Word has length 2763 [2024-12-02 11:52:37,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:37,062 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14957 transitions. [2024-12-02 11:52:37,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 345.375) internal successors, (2763), 8 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:37,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14957 transitions. [2024-12-02 11:52:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2764 [2024-12-02 11:52:37,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:37,105 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:37,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:52:37,106 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:37,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:37,107 INFO L85 PathProgramCache]: Analyzing trace with hash 442071922, now seen corresponding path program 1 times [2024-12-02 11:52:37,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:37,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835870345] [2024-12-02 11:52:37,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:37,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:43,334 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:43,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835870345] [2024-12-02 11:52:43,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835870345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:43,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:43,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:52:43,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559061624] [2024-12-02 11:52:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:43,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:52:43,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:43,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:52:43,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:52:43,338 INFO L87 Difference]: Start difference. First operand 9980 states and 14957 transitions. Second operand has 3 states, 3 states have (on average 921.0) internal successors, (2763), 3 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:43,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:43,411 INFO L93 Difference]: Finished difference Result 19428 states and 29119 transitions. [2024-12-02 11:52:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:52:43,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 921.0) internal successors, (2763), 3 states have internal predecessors, (2763), 0 states have call successors, (0), 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 2763 [2024-12-02 11:52:43,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:43,418 INFO L225 Difference]: With dead ends: 19428 [2024-12-02 11:52:43,418 INFO L226 Difference]: Without dead ends: 9979 [2024-12-02 11:52:43,423 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 11:52:43,424 INFO L435 NwaCegarLoop]: 7848 mSDtfsCounter, 0 mSDsluCounter, 7841 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15689 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:43,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15689 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:52:43,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9979 states. [2024-12-02 11:52:43,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9979 to 9979. [2024-12-02 11:52:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9979 states, 9978 states have (on average 1.49859691320906) internal successors, (14953), 9978 states have internal predecessors, (14953), 0 states have call successors, (0), 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 11:52:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9979 states to 9979 states and 14953 transitions. [2024-12-02 11:52:43,523 INFO L78 Accepts]: Start accepts. Automaton has 9979 states and 14953 transitions. Word has length 2763 [2024-12-02 11:52:43,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:43,523 INFO L471 AbstractCegarLoop]: Abstraction has 9979 states and 14953 transitions. [2024-12-02 11:52:43,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 921.0) internal successors, (2763), 3 states have internal predecessors, (2763), 0 states have call successors, (0), 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 11:52:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 9979 states and 14953 transitions. [2024-12-02 11:52:43,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2765 [2024-12-02 11:52:43,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:43,628 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:43,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:52:43,629 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:43,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:43,630 INFO L85 PathProgramCache]: Analyzing trace with hash -105087849, now seen corresponding path program 1 times [2024-12-02 11:52:43,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:43,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319282900] [2024-12-02 11:52:43,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:43,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:52,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319282900] [2024-12-02 11:52:52,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319282900] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:52,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:52,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:52:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12051905] [2024-12-02 11:52:52,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:52,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:52:52,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:52,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:52:52,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:52:52,350 INFO L87 Difference]: Start difference. First operand 9979 states and 14953 transitions. Second operand has 6 states, 6 states have (on average 460.6666666666667) internal successors, (2764), 6 states have internal predecessors, (2764), 0 states have call successors, (0), 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 11:52:52,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:52,539 INFO L93 Difference]: Finished difference Result 19436 states and 29126 transitions. [2024-12-02 11:52:52,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:52:52,539 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 460.6666666666667) internal successors, (2764), 6 states have internal predecessors, (2764), 0 states have call successors, (0), 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 2764 [2024-12-02 11:52:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:52,546 INFO L225 Difference]: With dead ends: 19436 [2024-12-02 11:52:52,546 INFO L226 Difference]: Without dead ends: 9988 [2024-12-02 11:52:52,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:52:52,551 INFO L435 NwaCegarLoop]: 7834 mSDtfsCounter, 7422 mSDsluCounter, 23483 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7422 SdHoareTripleChecker+Valid, 31317 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:52,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7422 Valid, 31317 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:52:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2024-12-02 11:52:52,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 9981. [2024-12-02 11:52:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9980 states have (on average 1.4985971943887775) internal successors, (14956), 9980 states have internal predecessors, (14956), 0 states have call successors, (0), 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 11:52:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 14956 transitions. [2024-12-02 11:52:52,629 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 14956 transitions. Word has length 2764 [2024-12-02 11:52:52,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:52,630 INFO L471 AbstractCegarLoop]: Abstraction has 9981 states and 14956 transitions. [2024-12-02 11:52:52,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 460.6666666666667) internal successors, (2764), 6 states have internal predecessors, (2764), 0 states have call successors, (0), 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 11:52:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 14956 transitions. [2024-12-02 11:52:52,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2765 [2024-12-02 11:52:52,663 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:52,664 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:52,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:52:52,664 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:52,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:52,666 INFO L85 PathProgramCache]: Analyzing trace with hash -247836585, now seen corresponding path program 1 times [2024-12-02 11:52:52,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:52,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731649657] [2024-12-02 11:52:52,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:52,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:58,860 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:58,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:58,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731649657] [2024-12-02 11:52:58,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731649657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:52:58,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:52:58,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:52:58,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086000056] [2024-12-02 11:52:58,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:52:58,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:52:58,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:58,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:52:58,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:52:58,864 INFO L87 Difference]: Start difference. First operand 9981 states and 14956 transitions. Second operand has 5 states, 5 states have (on average 552.8) internal successors, (2764), 5 states have internal predecessors, (2764), 0 states have call successors, (0), 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 11:52:59,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:59,003 INFO L93 Difference]: Finished difference Result 19431 states and 29119 transitions. [2024-12-02 11:52:59,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:52:59,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 552.8) internal successors, (2764), 5 states have internal predecessors, (2764), 0 states have call successors, (0), 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 2764 [2024-12-02 11:52:59,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:59,011 INFO L225 Difference]: With dead ends: 19431 [2024-12-02 11:52:59,011 INFO L226 Difference]: Without dead ends: 9981 [2024-12-02 11:52:59,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:52:59,018 INFO L435 NwaCegarLoop]: 7829 mSDtfsCounter, 7848 mSDsluCounter, 7827 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7848 SdHoareTripleChecker+Valid, 15656 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:59,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7848 Valid, 15656 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:52:59,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2024-12-02 11:52:59,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 9981. [2024-12-02 11:52:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9980 states have (on average 1.498496993987976) internal successors, (14955), 9980 states have internal predecessors, (14955), 0 states have call successors, (0), 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 11:52:59,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 14955 transitions. [2024-12-02 11:52:59,120 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 14955 transitions. Word has length 2764 [2024-12-02 11:52:59,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:59,120 INFO L471 AbstractCegarLoop]: Abstraction has 9981 states and 14955 transitions. [2024-12-02 11:52:59,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 552.8) internal successors, (2764), 5 states have internal predecessors, (2764), 0 states have call successors, (0), 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 11:52:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 14955 transitions. [2024-12-02 11:52:59,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2766 [2024-12-02 11:52:59,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:59,190 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:59,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:52:59,191 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:59,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash -807232305, now seen corresponding path program 1 times [2024-12-02 11:52:59,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:59,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765251273] [2024-12-02 11:52:59,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:59,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:05,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:05,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765251273] [2024-12-02 11:53:05,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765251273] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:05,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:05,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:53:05,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812693778] [2024-12-02 11:53:05,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:05,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:53:05,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:05,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:53:05,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:05,428 INFO L87 Difference]: Start difference. First operand 9981 states and 14955 transitions. Second operand has 4 states, 4 states have (on average 691.25) internal successors, (2765), 4 states have internal predecessors, (2765), 0 states have call successors, (0), 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 11:53:05,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:05,534 INFO L93 Difference]: Finished difference Result 19431 states and 29117 transitions. [2024-12-02 11:53:05,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:53:05,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 691.25) internal successors, (2765), 4 states have internal predecessors, (2765), 0 states have call successors, (0), 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 2765 [2024-12-02 11:53:05,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:05,541 INFO L225 Difference]: With dead ends: 19431 [2024-12-02 11:53:05,541 INFO L226 Difference]: Without dead ends: 9981 [2024-12-02 11:53:05,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:05,545 INFO L435 NwaCegarLoop]: 7814 mSDtfsCounter, 7390 mSDsluCounter, 7809 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7390 SdHoareTripleChecker+Valid, 15623 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:05,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7390 Valid, 15623 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:53:05,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9981 states. [2024-12-02 11:53:05,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9981 to 9981. [2024-12-02 11:53:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9980 states have (on average 1.4982965931863728) internal successors, (14953), 9980 states have internal predecessors, (14953), 0 states have call successors, (0), 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 11:53:05,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 14953 transitions. [2024-12-02 11:53:05,621 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 14953 transitions. Word has length 2765 [2024-12-02 11:53:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:05,621 INFO L471 AbstractCegarLoop]: Abstraction has 9981 states and 14953 transitions. [2024-12-02 11:53:05,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 691.25) internal successors, (2765), 4 states have internal predecessors, (2765), 0 states have call successors, (0), 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 11:53:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 14953 transitions. [2024-12-02 11:53:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2767 [2024-12-02 11:53:05,656 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:05,657 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:05,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:53:05,657 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:05,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:05,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1980547105, now seen corresponding path program 1 times [2024-12-02 11:53:05,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:05,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714446064] [2024-12-02 11:53:05,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:05,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:09,848 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:09,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:09,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714446064] [2024-12-02 11:53:09,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714446064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:09,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:09,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:53:09,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520587940] [2024-12-02 11:53:09,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:09,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:53:09,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:09,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:53:09,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:53:09,851 INFO L87 Difference]: Start difference. First operand 9981 states and 14953 transitions. Second operand has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:09,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:09,977 INFO L93 Difference]: Finished difference Result 19432 states and 29115 transitions. [2024-12-02 11:53:09,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:53:09,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 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 2766 [2024-12-02 11:53:09,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:09,983 INFO L225 Difference]: With dead ends: 19432 [2024-12-02 11:53:09,983 INFO L226 Difference]: Without dead ends: 9982 [2024-12-02 11:53:09,987 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:53:09,988 INFO L435 NwaCegarLoop]: 7833 mSDtfsCounter, 7404 mSDsluCounter, 15661 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7404 SdHoareTripleChecker+Valid, 23494 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:09,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7404 Valid, 23494 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:53:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9982 states. [2024-12-02 11:53:10,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9982 to 9982. [2024-12-02 11:53:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9982 states, 9981 states have (on average 1.4982466686704738) internal successors, (14954), 9981 states have internal predecessors, (14954), 0 states have call successors, (0), 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 11:53:10,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9982 states to 9982 states and 14954 transitions. [2024-12-02 11:53:10,065 INFO L78 Accepts]: Start accepts. Automaton has 9982 states and 14954 transitions. Word has length 2766 [2024-12-02 11:53:10,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:10,065 INFO L471 AbstractCegarLoop]: Abstraction has 9982 states and 14954 transitions. [2024-12-02 11:53:10,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:10,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9982 states and 14954 transitions. [2024-12-02 11:53:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2767 [2024-12-02 11:53:10,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:10,101 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:10,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:53:10,101 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:10,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:10,102 INFO L85 PathProgramCache]: Analyzing trace with hash 76551199, now seen corresponding path program 1 times [2024-12-02 11:53:10,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:10,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984911635] [2024-12-02 11:53:10,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:10,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:29,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:29,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984911635] [2024-12-02 11:53:29,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984911635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:29,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:29,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:53:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644469713] [2024-12-02 11:53:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:29,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:53:29,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:29,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:53:29,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:53:29,109 INFO L87 Difference]: Start difference. First operand 9982 states and 14954 transitions. Second operand has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:29,390 INFO L93 Difference]: Finished difference Result 19439 states and 29123 transitions. [2024-12-02 11:53:29,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:53:29,391 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 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 2766 [2024-12-02 11:53:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:29,400 INFO L225 Difference]: With dead ends: 19439 [2024-12-02 11:53:29,401 INFO L226 Difference]: Without dead ends: 9988 [2024-12-02 11:53:29,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:53:29,407 INFO L435 NwaCegarLoop]: 7827 mSDtfsCounter, 7423 mSDsluCounter, 15640 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7423 SdHoareTripleChecker+Valid, 23467 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:29,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7423 Valid, 23467 Invalid, 79 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:53:29,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9988 states. [2024-12-02 11:53:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9988 to 9981. [2024-12-02 11:53:29,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9981 states, 9980 states have (on average 1.498196392785571) internal successors, (14952), 9980 states have internal predecessors, (14952), 0 states have call successors, (0), 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 11:53:29,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9981 states to 9981 states and 14952 transitions. [2024-12-02 11:53:29,545 INFO L78 Accepts]: Start accepts. Automaton has 9981 states and 14952 transitions. Word has length 2766 [2024-12-02 11:53:29,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:29,545 INFO L471 AbstractCegarLoop]: Abstraction has 9981 states and 14952 transitions. [2024-12-02 11:53:29,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 461.0) internal successors, (2766), 6 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 9981 states and 14952 transitions. [2024-12-02 11:53:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2767 [2024-12-02 11:53:29,628 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:29,628 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:29,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:53:29,629 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:29,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:29,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1353515546, now seen corresponding path program 1 times [2024-12-02 11:53:29,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:29,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143659795] [2024-12-02 11:53:29,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:29,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:30,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:31,801 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:31,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:31,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143659795] [2024-12-02 11:53:31,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143659795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:31,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:31,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:53:31,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419793546] [2024-12-02 11:53:31,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:31,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:53:31,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:31,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:53:31,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:31,805 INFO L87 Difference]: Start difference. First operand 9981 states and 14952 transitions. Second operand has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:31,897 INFO L93 Difference]: Finished difference Result 19437 states and 29118 transitions. [2024-12-02 11:53:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:53:31,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 2766 [2024-12-02 11:53:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:31,904 INFO L225 Difference]: With dead ends: 19437 [2024-12-02 11:53:31,904 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:53:31,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:31,909 INFO L435 NwaCegarLoop]: 7843 mSDtfsCounter, 4 mSDsluCounter, 7825 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15668 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:31,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15668 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:53:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:53:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:53:32,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.498045896382403) internal successors, (14949), 9979 states have internal predecessors, (14949), 0 states have call successors, (0), 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 11:53:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14949 transitions. [2024-12-02 11:53:32,011 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14949 transitions. Word has length 2766 [2024-12-02 11:53:32,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:32,012 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14949 transitions. [2024-12-02 11:53:32,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14949 transitions. [2024-12-02 11:53:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2767 [2024-12-02 11:53:32,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:32,046 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:32,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:53:32,046 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:32,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:32,048 INFO L85 PathProgramCache]: Analyzing trace with hash 362063626, now seen corresponding path program 1 times [2024-12-02 11:53:32,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:32,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673613842] [2024-12-02 11:53:32,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:32,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:53:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:56,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:56,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673613842] [2024-12-02 11:53:56,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673613842] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:56,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:53:56,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:53:56,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096464572] [2024-12-02 11:53:56,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:56,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:53:56,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:56,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:53:56,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:56,234 INFO L87 Difference]: Start difference. First operand 9980 states and 14949 transitions. Second operand has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:58,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:58,812 INFO L93 Difference]: Finished difference Result 19429 states and 29105 transitions. [2024-12-02 11:53:58,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:53:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 2766 [2024-12-02 11:53:58,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:58,820 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:53:58,820 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:53:58,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:58,825 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6644 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6644 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:58,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6644 Valid, 11731 Invalid, 3955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3954 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 11:53:58,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:53:58,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:53:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4978454754985469) internal successors, (14947), 9979 states have internal predecessors, (14947), 0 states have call successors, (0), 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 11:53:58,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14947 transitions. [2024-12-02 11:53:58,919 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14947 transitions. Word has length 2766 [2024-12-02 11:53:58,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:58,920 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14947 transitions. [2024-12-02 11:53:58,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 691.5) internal successors, (2766), 4 states have internal predecessors, (2766), 0 states have call successors, (0), 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 11:53:58,921 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14947 transitions. [2024-12-02 11:53:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2768 [2024-12-02 11:53:58,955 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:58,956 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:58,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:53:58,956 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:58,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash -793231075, now seen corresponding path program 1 times [2024-12-02 11:53:58,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:58,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921794739] [2024-12-02 11:53:58,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:54:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:54:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:54:21,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:54:21,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921794739] [2024-12-02 11:54:21,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921794739] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:54:21,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:54:21,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:54:21,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239171568] [2024-12-02 11:54:21,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:54:21,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:54:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:54:21,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:54:21,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:21,388 INFO L87 Difference]: Start difference. First operand 9980 states and 14947 transitions. Second operand has 4 states, 4 states have (on average 691.75) internal successors, (2767), 4 states have internal predecessors, (2767), 0 states have call successors, (0), 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 11:54:23,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:54:23,970 INFO L93 Difference]: Finished difference Result 19429 states and 29101 transitions. [2024-12-02 11:54:23,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:54:23,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 691.75) internal successors, (2767), 4 states have internal predecessors, (2767), 0 states have call successors, (0), 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 2767 [2024-12-02 11:54:23,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:54:23,975 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:54:23,975 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:54:23,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:23,979 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6506 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3952 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6506 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:54:23,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6506 Valid, 11731 Invalid, 3953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3952 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 11:54:23,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:54:24,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:54:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4976450546146909) internal successors, (14945), 9979 states have internal predecessors, (14945), 0 states have call successors, (0), 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 11:54:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14945 transitions. [2024-12-02 11:54:24,049 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14945 transitions. Word has length 2767 [2024-12-02 11:54:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:54:24,049 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14945 transitions. [2024-12-02 11:54:24,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 691.75) internal successors, (2767), 4 states have internal predecessors, (2767), 0 states have call successors, (0), 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 11:54:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14945 transitions. [2024-12-02 11:54:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2769 [2024-12-02 11:54:24,083 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:54:24,084 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:24,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:54:24,084 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:54:24,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:54:24,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1852653638, now seen corresponding path program 1 times [2024-12-02 11:54:24,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:54:24,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926923845] [2024-12-02 11:54:24,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:54:24,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:54:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:54:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:54:41,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:54:41,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926923845] [2024-12-02 11:54:41,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926923845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:54:41,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:54:41,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:54:41,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531991167] [2024-12-02 11:54:41,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:54:41,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:54:41,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:54:41,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:54:41,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:41,249 INFO L87 Difference]: Start difference. First operand 9980 states and 14945 transitions. Second operand has 4 states, 4 states have (on average 692.0) internal successors, (2768), 4 states have internal predecessors, (2768), 0 states have call successors, (0), 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 11:54:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:54:43,661 INFO L93 Difference]: Finished difference Result 19429 states and 29097 transitions. [2024-12-02 11:54:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:54:43,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 692.0) internal successors, (2768), 4 states have internal predecessors, (2768), 0 states have call successors, (0), 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 2768 [2024-12-02 11:54:43,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:54:43,667 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:54:43,667 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:54:43,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:54:43,671 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6788 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3950 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6788 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:54:43,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6788 Valid, 11732 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3950 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:54:43,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:54:43,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:54:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4974446337308347) internal successors, (14943), 9979 states have internal predecessors, (14943), 0 states have call successors, (0), 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 11:54:43,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14943 transitions. [2024-12-02 11:54:43,743 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14943 transitions. Word has length 2768 [2024-12-02 11:54:43,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:54:43,743 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14943 transitions. [2024-12-02 11:54:43,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 692.0) internal successors, (2768), 4 states have internal predecessors, (2768), 0 states have call successors, (0), 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 11:54:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14943 transitions. [2024-12-02 11:54:43,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2770 [2024-12-02 11:54:43,776 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:54:43,776 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:43,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:54:43,776 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:54:43,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:54:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash 242917139, now seen corresponding path program 1 times [2024-12-02 11:54:43,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:54:43,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94913260] [2024-12-02 11:54:43,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:54:43,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:54:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:02,351 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:55:02,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:55:02,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94913260] [2024-12-02 11:55:02,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94913260] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:55:02,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:55:02,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:55:02,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950577107] [2024-12-02 11:55:02,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:55:02,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:55:02,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:55:02,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:55:02,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:02,355 INFO L87 Difference]: Start difference. First operand 9980 states and 14943 transitions. Second operand has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 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 11:55:04,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:55:04,813 INFO L93 Difference]: Finished difference Result 19429 states and 29093 transitions. [2024-12-02 11:55:04,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:55:04,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 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 2769 [2024-12-02 11:55:04,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:55:04,820 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:55:04,820 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:55:04,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:04,825 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6486 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3948 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6486 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:55:04,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6486 Valid, 11732 Invalid, 3949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3948 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:55:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:55:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:55:04,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4972442128469787) internal successors, (14941), 9979 states have internal predecessors, (14941), 0 states have call successors, (0), 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 11:55:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14941 transitions. [2024-12-02 11:55:04,902 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14941 transitions. Word has length 2769 [2024-12-02 11:55:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:55:04,903 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14941 transitions. [2024-12-02 11:55:04,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 692.25) internal successors, (2769), 4 states have internal predecessors, (2769), 0 states have call successors, (0), 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 11:55:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14941 transitions. [2024-12-02 11:55:04,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2771 [2024-12-02 11:55:04,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:04,991 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:04,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:55:04,991 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:04,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:04,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1839727775, now seen corresponding path program 1 times [2024-12-02 11:55:04,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:55:04,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840825114] [2024-12-02 11:55:04,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:04,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:55:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:55:21,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:55:21,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840825114] [2024-12-02 11:55:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840825114] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:55:21,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:55:21,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:55:21,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279109] [2024-12-02 11:55:21,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:55:21,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:55:21,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:55:21,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:55:21,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:21,309 INFO L87 Difference]: Start difference. First operand 9980 states and 14941 transitions. Second operand has 4 states, 4 states have (on average 692.5) internal successors, (2770), 4 states have internal predecessors, (2770), 0 states have call successors, (0), 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 11:55:23,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:55:23,773 INFO L93 Difference]: Finished difference Result 19429 states and 29089 transitions. [2024-12-02 11:55:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:55:23,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 692.5) internal successors, (2770), 4 states have internal predecessors, (2770), 0 states have call successors, (0), 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 2770 [2024-12-02 11:55:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:55:23,780 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:55:23,781 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:55:23,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:23,786 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6596 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3946 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6596 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:55:23,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6596 Valid, 11731 Invalid, 3947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3946 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:55:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:55:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:55:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4970437919631225) internal successors, (14939), 9979 states have internal predecessors, (14939), 0 states have call successors, (0), 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 11:55:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14939 transitions. [2024-12-02 11:55:23,867 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14939 transitions. Word has length 2770 [2024-12-02 11:55:23,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:55:23,867 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14939 transitions. [2024-12-02 11:55:23,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 692.5) internal successors, (2770), 4 states have internal predecessors, (2770), 0 states have call successors, (0), 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 11:55:23,868 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14939 transitions. [2024-12-02 11:55:23,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2772 [2024-12-02 11:55:23,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:23,929 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:23,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:55:23,929 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:23,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash 767068571, now seen corresponding path program 1 times [2024-12-02 11:55:23,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:55:23,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225542263] [2024-12-02 11:55:23,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:23,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:55:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:43,517 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:55:43,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:55:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225542263] [2024-12-02 11:55:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225542263] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:55:43,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:55:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:55:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541702991] [2024-12-02 11:55:43,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:55:43,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:55:43,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:55:43,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:55:43,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:43,523 INFO L87 Difference]: Start difference. First operand 9980 states and 14939 transitions. Second operand has 4 states, 4 states have (on average 692.75) internal successors, (2771), 4 states have internal predecessors, (2771), 0 states have call successors, (0), 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 11:55:45,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:55:45,912 INFO L93 Difference]: Finished difference Result 19429 states and 29085 transitions. [2024-12-02 11:55:45,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:55:45,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 692.75) internal successors, (2771), 4 states have internal predecessors, (2771), 0 states have call successors, (0), 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 2771 [2024-12-02 11:55:45,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:55:45,919 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:55:45,919 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:55:45,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:55:45,923 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6776 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3944 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6776 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:55:45,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6776 Valid, 11731 Invalid, 3945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3944 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:55:45,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:55:45,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:55:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4968433710792663) internal successors, (14937), 9979 states have internal predecessors, (14937), 0 states have call successors, (0), 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 11:55:45,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14937 transitions. [2024-12-02 11:55:45,999 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14937 transitions. Word has length 2771 [2024-12-02 11:55:45,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:55:45,999 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14937 transitions. [2024-12-02 11:55:46,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 692.75) internal successors, (2771), 4 states have internal predecessors, (2771), 0 states have call successors, (0), 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 11:55:46,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14937 transitions. [2024-12-02 11:55:46,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2773 [2024-12-02 11:55:46,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:55:46,034 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:46,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:55:46,034 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:55:46,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:55:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1140878193, now seen corresponding path program 1 times [2024-12-02 11:55:46,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:55:46,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516584884] [2024-12-02 11:55:46,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:46,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:56:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:56:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:56:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:56:06,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516584884] [2024-12-02 11:56:06,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516584884] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:56:06,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:56:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:56:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991323129] [2024-12-02 11:56:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:56:06,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:56:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:56:06,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:56:06,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:06,254 INFO L87 Difference]: Start difference. First operand 9980 states and 14937 transitions. Second operand has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 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 11:56:08,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:56:08,750 INFO L93 Difference]: Finished difference Result 19429 states and 29081 transitions. [2024-12-02 11:56:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:56:08,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 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 2772 [2024-12-02 11:56:08,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:56:08,757 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:56:08,757 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:56:08,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:08,762 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6540 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6540 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:56:08,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6540 Valid, 11731 Invalid, 3943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:56:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:56:08,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:56:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4966429501954104) internal successors, (14935), 9979 states have internal predecessors, (14935), 0 states have call successors, (0), 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 11:56:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14935 transitions. [2024-12-02 11:56:08,837 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14935 transitions. Word has length 2772 [2024-12-02 11:56:08,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:56:08,838 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14935 transitions. [2024-12-02 11:56:08,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 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 11:56:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14935 transitions. [2024-12-02 11:56:08,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2774 [2024-12-02 11:56:08,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:56:08,920 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:08,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:56:08,921 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:56:08,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:56:08,922 INFO L85 PathProgramCache]: Analyzing trace with hash -87681215, now seen corresponding path program 1 times [2024-12-02 11:56:08,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:56:08,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169165796] [2024-12-02 11:56:08,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:56:08,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:56:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:56:30,607 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:56:30,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:56:30,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169165796] [2024-12-02 11:56:30,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169165796] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:56:30,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:56:30,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:56:30,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389450779] [2024-12-02 11:56:30,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:56:30,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:56:30,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:56:30,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:56:30,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:30,612 INFO L87 Difference]: Start difference. First operand 9980 states and 14935 transitions. Second operand has 4 states, 4 states have (on average 693.25) internal successors, (2773), 4 states have internal predecessors, (2773), 0 states have call successors, (0), 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 11:56:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:56:33,168 INFO L93 Difference]: Finished difference Result 19429 states and 29077 transitions. [2024-12-02 11:56:33,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:56:33,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 693.25) internal successors, (2773), 4 states have internal predecessors, (2773), 0 states have call successors, (0), 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 2773 [2024-12-02 11:56:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:56:33,175 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:56:33,175 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:56:33,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:33,180 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6400 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6400 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:56:33,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6400 Valid, 11731 Invalid, 3941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3940 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:56:33,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:56:33,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:56:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4964425293115542) internal successors, (14933), 9979 states have internal predecessors, (14933), 0 states have call successors, (0), 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 11:56:33,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14933 transitions. [2024-12-02 11:56:33,261 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14933 transitions. Word has length 2773 [2024-12-02 11:56:33,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:56:33,262 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14933 transitions. [2024-12-02 11:56:33,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 693.25) internal successors, (2773), 4 states have internal predecessors, (2773), 0 states have call successors, (0), 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 11:56:33,262 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14933 transitions. [2024-12-02 11:56:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2775 [2024-12-02 11:56:33,295 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:56:33,296 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:33,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:56:33,296 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:56:33,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:56:33,297 INFO L85 PathProgramCache]: Analyzing trace with hash 303925771, now seen corresponding path program 1 times [2024-12-02 11:56:33,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:56:33,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650977682] [2024-12-02 11:56:33,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:56:33,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:56:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:56:56,032 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:56:56,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:56:56,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650977682] [2024-12-02 11:56:56,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650977682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:56:56,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:56:56,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:56:56,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096993238] [2024-12-02 11:56:56,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:56:56,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:56:56,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:56:56,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:56:56,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:56,035 INFO L87 Difference]: Start difference. First operand 9980 states and 14933 transitions. Second operand has 4 states, 4 states have (on average 693.5) internal successors, (2774), 4 states have internal predecessors, (2774), 0 states have call successors, (0), 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 11:56:58,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:56:58,443 INFO L93 Difference]: Finished difference Result 19429 states and 29073 transitions. [2024-12-02 11:56:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:56:58,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 693.5) internal successors, (2774), 4 states have internal predecessors, (2774), 0 states have call successors, (0), 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 2774 [2024-12-02 11:56:58,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:56:58,450 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:56:58,450 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:56:58,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:56:58,455 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6368 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3938 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6368 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:56:58,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6368 Valid, 11732 Invalid, 3939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3938 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:56:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:56:58,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:56:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4962421084276982) internal successors, (14931), 9979 states have internal predecessors, (14931), 0 states have call successors, (0), 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 11:56:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14931 transitions. [2024-12-02 11:56:58,539 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14931 transitions. Word has length 2774 [2024-12-02 11:56:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:56:58,540 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14931 transitions. [2024-12-02 11:56:58,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 693.5) internal successors, (2774), 4 states have internal predecessors, (2774), 0 states have call successors, (0), 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 11:56:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14931 transitions. [2024-12-02 11:56:58,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2776 [2024-12-02 11:56:58,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:56:58,574 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:58,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:56:58,574 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:56:58,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:56:58,575 INFO L85 PathProgramCache]: Analyzing trace with hash -542499229, now seen corresponding path program 1 times [2024-12-02 11:56:58,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:56:58,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759059419] [2024-12-02 11:56:58,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:56:58,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:57:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:57:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:57:19,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:57:19,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759059419] [2024-12-02 11:57:19,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759059419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:57:19,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:57:19,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:57:19,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053416018] [2024-12-02 11:57:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:57:19,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:57:19,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:57:19,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:57:19,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:57:19,584 INFO L87 Difference]: Start difference. First operand 9980 states and 14931 transitions. Second operand has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 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 11:57:22,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:57:22,138 INFO L93 Difference]: Finished difference Result 19429 states and 29069 transitions. [2024-12-02 11:57:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:57:22,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 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 2775 [2024-12-02 11:57:22,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:57:22,146 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:57:22,146 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:57:22,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:57:22,152 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6602 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3936 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6602 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:57:22,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6602 Valid, 11732 Invalid, 3937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3936 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:57:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:57:22,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:57:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.496041687543842) internal successors, (14929), 9979 states have internal predecessors, (14929), 0 states have call successors, (0), 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 11:57:22,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14929 transitions. [2024-12-02 11:57:22,250 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14929 transitions. Word has length 2775 [2024-12-02 11:57:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:57:22,251 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14929 transitions. [2024-12-02 11:57:22,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 693.75) internal successors, (2775), 4 states have internal predecessors, (2775), 0 states have call successors, (0), 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 11:57:22,251 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14929 transitions. [2024-12-02 11:57:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2777 [2024-12-02 11:57:22,284 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:57:22,285 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:22,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:57:22,285 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:57:22,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:57:22,286 INFO L85 PathProgramCache]: Analyzing trace with hash 759694328, now seen corresponding path program 1 times [2024-12-02 11:57:22,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:57:22,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107238267] [2024-12-02 11:57:22,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:57:22,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:57:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:57:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:57:43,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:57:43,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107238267] [2024-12-02 11:57:43,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107238267] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:57:43,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:57:43,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:57:43,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252442726] [2024-12-02 11:57:43,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:57:43,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:57:43,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:57:43,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:57:43,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:57:43,968 INFO L87 Difference]: Start difference. First operand 9980 states and 14929 transitions. Second operand has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 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 11:57:46,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:57:46,460 INFO L93 Difference]: Finished difference Result 19429 states and 29065 transitions. [2024-12-02 11:57:46,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:57:46,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 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 2776 [2024-12-02 11:57:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:57:46,468 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:57:46,468 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:57:46,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:57:46,472 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6686 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3934 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6686 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:57:46,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6686 Valid, 11731 Invalid, 3935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3934 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:57:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:57:46,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:57:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.495841266659986) internal successors, (14927), 9979 states have internal predecessors, (14927), 0 states have call successors, (0), 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 11:57:46,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14927 transitions. [2024-12-02 11:57:46,552 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14927 transitions. Word has length 2776 [2024-12-02 11:57:46,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:57:46,553 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14927 transitions. [2024-12-02 11:57:46,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 694.0) internal successors, (2776), 4 states have internal predecessors, (2776), 0 states have call successors, (0), 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 11:57:46,554 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14927 transitions. [2024-12-02 11:57:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2778 [2024-12-02 11:57:46,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:57:46,587 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:46,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:57:46,587 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:57:46,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:57:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -122610552, now seen corresponding path program 1 times [2024-12-02 11:57:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:57:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861539742] [2024-12-02 11:57:46,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:57:46,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:58:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:58:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:58:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861539742] [2024-12-02 11:58:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861539742] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:58:08,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:58:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:58:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963513816] [2024-12-02 11:58:08,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:58:08,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:58:08,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:58:08,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:58:08,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:08,217 INFO L87 Difference]: Start difference. First operand 9980 states and 14927 transitions. Second operand has 4 states, 4 states have (on average 694.25) internal successors, (2777), 4 states have internal predecessors, (2777), 0 states have call successors, (0), 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 11:58:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:58:10,611 INFO L93 Difference]: Finished difference Result 19429 states and 29061 transitions. [2024-12-02 11:58:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:58:10,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 694.25) internal successors, (2777), 4 states have internal predecessors, (2777), 0 states have call successors, (0), 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 2777 [2024-12-02 11:58:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:58:10,620 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:58:10,620 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:58:10,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:10,625 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6695 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3932 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6695 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:58:10,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6695 Valid, 11731 Invalid, 3933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3932 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:58:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:58:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:58:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4956408457761299) internal successors, (14925), 9979 states have internal predecessors, (14925), 0 states have call successors, (0), 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 11:58:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14925 transitions. [2024-12-02 11:58:10,723 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14925 transitions. Word has length 2777 [2024-12-02 11:58:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:58:10,723 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14925 transitions. [2024-12-02 11:58:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 694.25) internal successors, (2777), 4 states have internal predecessors, (2777), 0 states have call successors, (0), 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 11:58:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14925 transitions. [2024-12-02 11:58:10,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2779 [2024-12-02 11:58:10,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:58:10,758 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:10,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 11:58:10,758 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:58:10,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:58:10,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1395895131, now seen corresponding path program 1 times [2024-12-02 11:58:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:58:10,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880669537] [2024-12-02 11:58:10,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:58:10,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:58:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:58:29,035 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:29,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:58:29,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880669537] [2024-12-02 11:58:29,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880669537] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:58:29,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:58:29,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:58:29,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226697950] [2024-12-02 11:58:29,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:58:29,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:58:29,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:58:29,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:58:29,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:29,038 INFO L87 Difference]: Start difference. First operand 9980 states and 14925 transitions. Second operand has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 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 11:58:31,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:58:31,412 INFO L93 Difference]: Finished difference Result 19429 states and 29057 transitions. [2024-12-02 11:58:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:58:31,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 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 2778 [2024-12-02 11:58:31,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:58:31,421 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:58:31,421 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:58:31,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:31,426 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6656 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6656 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:58:31,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6656 Valid, 11731 Invalid, 3931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:58:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:58:31,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:58:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4954404248922737) internal successors, (14923), 9979 states have internal predecessors, (14923), 0 states have call successors, (0), 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 11:58:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14923 transitions. [2024-12-02 11:58:31,501 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14923 transitions. Word has length 2778 [2024-12-02 11:58:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:58:31,502 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14923 transitions. [2024-12-02 11:58:31,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 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 11:58:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14923 transitions. [2024-12-02 11:58:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2780 [2024-12-02 11:58:31,536 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:58:31,536 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:31,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 11:58:31,536 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:58:31,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:58:31,537 INFO L85 PathProgramCache]: Analyzing trace with hash -54759104, now seen corresponding path program 1 times [2024-12-02 11:58:31,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:58:31,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528958351] [2024-12-02 11:58:31,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:58:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:58:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:58:51,416 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:51,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:58:51,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528958351] [2024-12-02 11:58:51,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528958351] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:58:51,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:58:51,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:58:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704074209] [2024-12-02 11:58:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:58:51,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:58:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:58:51,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:58:51,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:51,421 INFO L87 Difference]: Start difference. First operand 9980 states and 14923 transitions. Second operand has 4 states, 4 states have (on average 694.75) internal successors, (2779), 4 states have internal predecessors, (2779), 0 states have call successors, (0), 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 11:58:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:58:53,931 INFO L93 Difference]: Finished difference Result 19429 states and 29053 transitions. [2024-12-02 11:58:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:58:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 694.75) internal successors, (2779), 4 states have internal predecessors, (2779), 0 states have call successors, (0), 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 2779 [2024-12-02 11:58:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:58:53,937 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:58:53,937 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:58:53,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:58:53,940 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6373 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3928 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6373 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:58:53,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6373 Valid, 11732 Invalid, 3929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3928 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 11:58:53,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:58:54,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:58:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4952400040084177) internal successors, (14921), 9979 states have internal predecessors, (14921), 0 states have call successors, (0), 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 11:58:54,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14921 transitions. [2024-12-02 11:58:54,016 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14921 transitions. Word has length 2779 [2024-12-02 11:58:54,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:58:54,017 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14921 transitions. [2024-12-02 11:58:54,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 694.75) internal successors, (2779), 4 states have internal predecessors, (2779), 0 states have call successors, (0), 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 11:58:54,017 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14921 transitions. [2024-12-02 11:58:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2781 [2024-12-02 11:58:54,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:58:54,051 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:54,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 11:58:54,051 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:58:54,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:58:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -7783553, now seen corresponding path program 1 times [2024-12-02 11:58:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:58:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534643107] [2024-12-02 11:58:54,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:58:54,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:13,518 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:59:13,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:59:13,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534643107] [2024-12-02 11:59:13,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534643107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:59:13,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:59:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:59:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203504063] [2024-12-02 11:59:13,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:59:13,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:59:13,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:59:13,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:59:13,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:59:13,521 INFO L87 Difference]: Start difference. First operand 9980 states and 14921 transitions. Second operand has 4 states, 4 states have (on average 695.0) internal successors, (2780), 4 states have internal predecessors, (2780), 0 states have call successors, (0), 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 11:59:15,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:59:15,923 INFO L93 Difference]: Finished difference Result 19429 states and 29049 transitions. [2024-12-02 11:59:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:59:15,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 695.0) internal successors, (2780), 4 states have internal predecessors, (2780), 0 states have call successors, (0), 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 2780 [2024-12-02 11:59:15,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:59:15,930 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:59:15,930 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:59:15,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:59:15,935 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6415 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6415 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:59:15,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6415 Valid, 11732 Invalid, 3927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:59:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:59:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:59:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4950395831245615) internal successors, (14919), 9979 states have internal predecessors, (14919), 0 states have call successors, (0), 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 11:59:16,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14919 transitions. [2024-12-02 11:59:16,054 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14919 transitions. Word has length 2780 [2024-12-02 11:59:16,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:59:16,055 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14919 transitions. [2024-12-02 11:59:16,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 695.0) internal successors, (2780), 4 states have internal predecessors, (2780), 0 states have call successors, (0), 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 11:59:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14919 transitions. [2024-12-02 11:59:16,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2782 [2024-12-02 11:59:16,087 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:59:16,088 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:16,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 11:59:16,088 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:59:16,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 140791153, now seen corresponding path program 1 times [2024-12-02 11:59:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:59:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755826068] [2024-12-02 11:59:16,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:59:36,595 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:59:36,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:59:36,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755826068] [2024-12-02 11:59:36,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755826068] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:59:36,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:59:36,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:59:36,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155239436] [2024-12-02 11:59:36,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:59:36,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:59:36,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:59:36,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:59:36,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:59:36,598 INFO L87 Difference]: Start difference. First operand 9980 states and 14919 transitions. Second operand has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 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 11:59:39,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:59:39,046 INFO L93 Difference]: Finished difference Result 19429 states and 29045 transitions. [2024-12-02 11:59:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:59:39,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 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 2781 [2024-12-02 11:59:39,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:59:39,054 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 11:59:39,054 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 11:59:39,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:59:39,059 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6274 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6274 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:59:39,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6274 Valid, 11732 Invalid, 3925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 11:59:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 11:59:39,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 11:59:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4948391622407056) internal successors, (14917), 9979 states have internal predecessors, (14917), 0 states have call successors, (0), 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 11:59:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14917 transitions. [2024-12-02 11:59:39,141 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14917 transitions. Word has length 2781 [2024-12-02 11:59:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:59:39,142 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14917 transitions. [2024-12-02 11:59:39,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 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 11:59:39,143 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14917 transitions. [2024-12-02 11:59:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2783 [2024-12-02 11:59:39,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:59:39,177 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:39,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 11:59:39,177 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:59:39,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:59:39,178 INFO L85 PathProgramCache]: Analyzing trace with hash 580111573, now seen corresponding path program 1 times [2024-12-02 11:59:39,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:59:39,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016238320] [2024-12-02 11:59:39,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:59:39,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:01,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:01,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016238320] [2024-12-02 12:00:01,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016238320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:00:01,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:00:01,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:00:01,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943688913] [2024-12-02 12:00:01,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:00:01,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:00:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:01,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:00:01,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:01,948 INFO L87 Difference]: Start difference. First operand 9980 states and 14917 transitions. Second operand has 4 states, 4 states have (on average 695.5) internal successors, (2782), 4 states have internal predecessors, (2782), 0 states have call successors, (0), 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 12:00:04,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:04,367 INFO L93 Difference]: Finished difference Result 19429 states and 29041 transitions. [2024-12-02 12:00:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:00:04,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 695.5) internal successors, (2782), 4 states have internal predecessors, (2782), 0 states have call successors, (0), 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 2782 [2024-12-02 12:00:04,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:04,374 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:00:04,374 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:00:04,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:04,378 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6180 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3922 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6180 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:04,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6180 Valid, 11731 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3922 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:00:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:00:04,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:00:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4946387413568494) internal successors, (14915), 9979 states have internal predecessors, (14915), 0 states have call successors, (0), 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 12:00:04,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14915 transitions. [2024-12-02 12:00:04,460 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14915 transitions. Word has length 2782 [2024-12-02 12:00:04,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:04,461 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14915 transitions. [2024-12-02 12:00:04,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 695.5) internal successors, (2782), 4 states have internal predecessors, (2782), 0 states have call successors, (0), 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 12:00:04,461 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14915 transitions. [2024-12-02 12:00:04,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2784 [2024-12-02 12:00:04,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:04,495 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:04,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 12:00:04,495 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:00:04,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:04,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1759286118, now seen corresponding path program 1 times [2024-12-02 12:00:04,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159352730] [2024-12-02 12:00:04,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:04,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:00:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:28,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:28,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159352730] [2024-12-02 12:00:28,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159352730] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:00:28,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:00:28,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:00:28,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844988968] [2024-12-02 12:00:28,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:00:28,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:00:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:28,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:00:28,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:28,867 INFO L87 Difference]: Start difference. First operand 9980 states and 14915 transitions. Second operand has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 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 12:00:31,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:31,315 INFO L93 Difference]: Finished difference Result 19429 states and 29037 transitions. [2024-12-02 12:00:31,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:00:31,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 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 2783 [2024-12-02 12:00:31,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:31,324 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:00:31,324 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:00:31,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:31,329 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6496 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3920 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6496 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:31,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6496 Valid, 11731 Invalid, 3921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3920 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:00:31,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:00:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:00:31,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4944383204729932) internal successors, (14913), 9979 states have internal predecessors, (14913), 0 states have call successors, (0), 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 12:00:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14913 transitions. [2024-12-02 12:00:31,439 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14913 transitions. Word has length 2783 [2024-12-02 12:00:31,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:31,440 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14913 transitions. [2024-12-02 12:00:31,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 695.75) internal successors, (2783), 4 states have internal predecessors, (2783), 0 states have call successors, (0), 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 12:00:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14913 transitions. [2024-12-02 12:00:31,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2785 [2024-12-02 12:00:31,473 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:31,473 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:31,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 12:00:31,473 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:00:31,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:31,474 INFO L85 PathProgramCache]: Analyzing trace with hash -980831342, now seen corresponding path program 1 times [2024-12-02 12:00:31,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:31,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119096742] [2024-12-02 12:00:31,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:31,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:00:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:54,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:54,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119096742] [2024-12-02 12:00:54,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119096742] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:00:54,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:00:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:00:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610984052] [2024-12-02 12:00:54,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:00:54,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:00:54,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:54,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:00:54,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:54,156 INFO L87 Difference]: Start difference. First operand 9980 states and 14913 transitions. Second operand has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 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 12:00:56,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:56,533 INFO L93 Difference]: Finished difference Result 19429 states and 29033 transitions. [2024-12-02 12:00:56,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:00:56,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 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 2784 [2024-12-02 12:00:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:56,542 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:00:56,542 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:00:56,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:00:56,546 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6314 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 3918 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6314 SdHoareTripleChecker+Valid, 11731 SdHoareTripleChecker+Invalid, 3919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:56,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6314 Valid, 11731 Invalid, 3919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3918 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:00:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:00:56,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:00:56,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4942378995891372) internal successors, (14911), 9979 states have internal predecessors, (14911), 0 states have call successors, (0), 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 12:00:56,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14911 transitions. [2024-12-02 12:00:56,625 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14911 transitions. Word has length 2784 [2024-12-02 12:00:56,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:56,626 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14911 transitions. [2024-12-02 12:00:56,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 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 12:00:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14911 transitions. [2024-12-02 12:00:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2786 [2024-12-02 12:00:56,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:56,682 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:56,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 12:00:56,683 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:00:56,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1664076691, now seen corresponding path program 1 times [2024-12-02 12:00:56,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:56,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360687071] [2024-12-02 12:00:56,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:56,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:01:21,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:21,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360687071] [2024-12-02 12:01:21,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360687071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:21,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:21,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:01:21,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255292361] [2024-12-02 12:01:21,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:21,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:01:21,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:21,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:01:21,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:01:21,049 INFO L87 Difference]: Start difference. First operand 9980 states and 14911 transitions. Second operand has 4 states, 4 states have (on average 696.25) internal successors, (2785), 4 states have internal predecessors, (2785), 0 states have call successors, (0), 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 12:01:23,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:23,552 INFO L93 Difference]: Finished difference Result 19429 states and 29029 transitions. [2024-12-02 12:01:23,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:01:23,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 696.25) internal successors, (2785), 4 states have internal predecessors, (2785), 0 states have call successors, (0), 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 2785 [2024-12-02 12:01:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:23,559 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:01:23,559 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:01:23,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:01:23,564 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6394 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3916 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:23,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 11732 Invalid, 3917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3916 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-12-02 12:01:23,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:01:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:01:23,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.494037478705281) internal successors, (14909), 9979 states have internal predecessors, (14909), 0 states have call successors, (0), 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 12:01:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14909 transitions. [2024-12-02 12:01:23,648 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14909 transitions. Word has length 2785 [2024-12-02 12:01:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:23,649 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14909 transitions. [2024-12-02 12:01:23,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 696.25) internal successors, (2785), 4 states have internal predecessors, (2785), 0 states have call successors, (0), 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 12:01:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14909 transitions. [2024-12-02 12:01:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2787 [2024-12-02 12:01:23,683 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:23,683 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:23,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 12:01:23,683 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:01:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:23,684 INFO L85 PathProgramCache]: Analyzing trace with hash -766822586, now seen corresponding path program 1 times [2024-12-02 12:01:23,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:23,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072725662] [2024-12-02 12:01:23,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:01:47,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:47,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072725662] [2024-12-02 12:01:47,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072725662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:47,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:47,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:01:47,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493317056] [2024-12-02 12:01:47,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:47,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:01:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:47,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:01:47,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:01:47,724 INFO L87 Difference]: Start difference. First operand 9980 states and 14909 transitions. Second operand has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 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 12:01:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:50,174 INFO L93 Difference]: Finished difference Result 19429 states and 29025 transitions. [2024-12-02 12:01:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:01:50,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 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 2786 [2024-12-02 12:01:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:50,206 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:01:50,206 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:01:50,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:01:50,208 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6185 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3914 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6185 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:50,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6185 Valid, 11732 Invalid, 3915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3914 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:01:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:01:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:01:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.493837057821425) internal successors, (14907), 9979 states have internal predecessors, (14907), 0 states have call successors, (0), 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 12:01:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14907 transitions. [2024-12-02 12:01:50,284 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14907 transitions. Word has length 2786 [2024-12-02 12:01:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:50,284 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14907 transitions. [2024-12-02 12:01:50,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 696.5) internal successors, (2786), 4 states have internal predecessors, (2786), 0 states have call successors, (0), 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 12:01:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14907 transitions. [2024-12-02 12:01:50,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2788 [2024-12-02 12:01:50,318 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:50,319 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:01:50,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 12:01:50,319 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:01:50,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2099848262, now seen corresponding path program 1 times [2024-12-02 12:01:50,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:50,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210438413] [2024-12-02 12:01:50,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:50,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:10,521 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:02:10,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:10,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210438413] [2024-12-02 12:02:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210438413] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:10,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:02:10,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323691132] [2024-12-02 12:02:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:10,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:02:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:10,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:02:10,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:02:10,524 INFO L87 Difference]: Start difference. First operand 9980 states and 14907 transitions. Second operand has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 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 12:02:12,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:12,961 INFO L93 Difference]: Finished difference Result 19429 states and 29021 transitions. [2024-12-02 12:02:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:02:12,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 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 2787 [2024-12-02 12:02:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:12,969 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:02:12,969 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:02:12,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:02:12,975 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6533 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6533 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:12,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6533 Valid, 11732 Invalid, 3913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3912 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:02:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:02:13,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:02:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.4936366369375689) internal successors, (14905), 9979 states have internal predecessors, (14905), 0 states have call successors, (0), 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 12:02:13,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14905 transitions. [2024-12-02 12:02:13,079 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14905 transitions. Word has length 2787 [2024-12-02 12:02:13,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:13,080 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14905 transitions. [2024-12-02 12:02:13,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 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 12:02:13,080 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14905 transitions. [2024-12-02 12:02:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2789 [2024-12-02 12:02:13,113 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:13,113 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:13,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 12:02:13,113 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:02:13,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash -811227775, now seen corresponding path program 1 times [2024-12-02 12:02:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:13,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253272500] [2024-12-02 12:02:13,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:13,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:37,220 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:02:37,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253272500] [2024-12-02 12:02:37,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253272500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:37,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:37,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:02:37,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802450691] [2024-12-02 12:02:37,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:37,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:02:37,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:37,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:02:37,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:02:37,224 INFO L87 Difference]: Start difference. First operand 9980 states and 14905 transitions. Second operand has 4 states, 4 states have (on average 697.0) internal successors, (2788), 4 states have internal predecessors, (2788), 0 states have call successors, (0), 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 12:02:39,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:39,666 INFO L93 Difference]: Finished difference Result 19429 states and 29017 transitions. [2024-12-02 12:02:39,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:02:39,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 697.0) internal successors, (2788), 4 states have internal predecessors, (2788), 0 states have call successors, (0), 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 2788 [2024-12-02 12:02:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:39,674 INFO L225 Difference]: With dead ends: 19429 [2024-12-02 12:02:39,674 INFO L226 Difference]: Without dead ends: 9980 [2024-12-02 12:02:39,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:02:39,679 INFO L435 NwaCegarLoop]: 5870 mSDtfsCounter, 6124 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 3910 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6124 SdHoareTripleChecker+Valid, 11732 SdHoareTripleChecker+Invalid, 3911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:39,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6124 Valid, 11732 Invalid, 3911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3910 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 12:02:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9980 states. [2024-12-02 12:02:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9980 to 9980. [2024-12-02 12:02:39,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9980 states, 9979 states have (on average 1.493436216053713) internal successors, (14903), 9979 states have internal predecessors, (14903), 0 states have call successors, (0), 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 12:02:39,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9980 states to 9980 states and 14903 transitions. [2024-12-02 12:02:39,760 INFO L78 Accepts]: Start accepts. Automaton has 9980 states and 14903 transitions. Word has length 2788 [2024-12-02 12:02:39,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:39,761 INFO L471 AbstractCegarLoop]: Abstraction has 9980 states and 14903 transitions. [2024-12-02 12:02:39,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 697.0) internal successors, (2788), 4 states have internal predecessors, (2788), 0 states have call successors, (0), 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 12:02:39,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9980 states and 14903 transitions. [2024-12-02 12:02:39,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2790 [2024-12-02 12:02:39,796 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:39,796 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:02:39,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 12:02:39,796 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:02:39,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:39,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1650299743, now seen corresponding path program 1 times [2024-12-02 12:02:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:39,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465663411] [2024-12-02 12:02:39,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:39,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:03:01,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:01,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465663411] [2024-12-02 12:03:01,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465663411] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:01,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:01,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:03:01,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021536323] [2024-12-02 12:03:01,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:01,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:03:01,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:01,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:03:01,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:03:01,612 INFO L87 Difference]: Start difference. First operand 9980 states and 14903 transitions. Second operand has 4 states, 4 states have (on average 697.25) internal successors, (2789), 4 states have internal predecessors, (2789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)