./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.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_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/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_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/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_2083f194-3fc8-493e-be25-a4d21fb5bddc/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 682cc02099f4a9e798f626fc8a1e095afe1c1b5876e85a30802d19b3ebc5096c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:25:10,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:25:10,503 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 06:25:10,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:25:10,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:25:10,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:25:10,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:25:10,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:25:10,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:25:10,536 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:25:10,536 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:25:10,536 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:25:10,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:25:10,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:25:10,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:25:10,538 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:25:10,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:25:10,538 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:25:10,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:25:10,539 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:25:10,540 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:25:10,540 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:25:10,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:25:10,540 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_2083f194-3fc8-493e-be25-a4d21fb5bddc/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 -> 682cc02099f4a9e798f626fc8a1e095afe1c1b5876e85a30802d19b3ebc5096c [2024-12-02 06:25:10,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:25:10,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:25:10,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:25:10,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:25:10,795 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:25:10,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-func-interl.c [2024-12-02 06:25:13,484 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/data/28fad8912/32ffe6a3b06c4b1192bc8324c86b4271/FLAG673497d55 [2024-12-02 06:25:13,911 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:25:13,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-func-interl.c [2024-12-02 06:25:13,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/data/28fad8912/32ffe6a3b06c4b1192bc8324c86b4271/FLAG673497d55 [2024-12-02 06:25:13,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/data/28fad8912/32ffe6a3b06c4b1192bc8324c86b4271 [2024-12-02 06:25:13,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:25:13,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:25:13,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:25:13,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:25:13,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:25:13,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:25:13" (1/1) ... [2024-12-02 06:25:13,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66695959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:13, skipping insertion in model container [2024-12-02 06:25:13,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:25:13" (1/1) ... [2024-12-02 06:25:14,059 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:25:14,274 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_2083f194-3fc8-493e-be25-a4d21fb5bddc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-func-interl.c[1174,1187] [2024-12-02 06:25:15,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:25:15,045 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:25:15,054 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_2083f194-3fc8-493e-be25-a4d21fb5bddc/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-func-interl.c[1174,1187] [2024-12-02 06:25:15,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:25:15,786 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:25:15,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15 WrapperNode [2024-12-02 06:25:15,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:25:15,788 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:25:15,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:25:15,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:25:15,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:15,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:17,809 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29301 [2024-12-02 06:25:17,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:25:17,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:25:17,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:25:17,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:25:17,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:17,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:18,410 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:18,747 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 06:25:18,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:18,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,964 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:25:19,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:25:19,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:25:19,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:25:19,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (1/1) ... [2024-12-02 06:25:19,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:25:19,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:25:19,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:25:19,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2083f194-3fc8-493e-be25-a4d21fb5bddc/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:25:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:25:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:25:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:25:20,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:25:21,495 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:25:21,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:27:04,449 INFO L? ?]: Removed 17045 outVars from TransFormulas that were not future-live. [2024-12-02 06:27:04,450 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:27:04,533 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:27:04,533 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 06:27:04,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:27:04 BoogieIcfgContainer [2024-12-02 06:27:04,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:27:04,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:27:04,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:27:04,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:27:04,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:25:13" (1/3) ... [2024-12-02 06:27:04,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25635dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:27:04, skipping insertion in model container [2024-12-02 06:27:04,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:25:15" (2/3) ... [2024-12-02 06:27:04,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25635dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:27:04, skipping insertion in model container [2024-12-02 06:27:04,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:27:04" (3/3) ... [2024-12-02 06:27:04,542 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synapse.2.prop1-func-interl.c [2024-12-02 06:27:04,554 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:27:04,555 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.synapse.2.prop1-func-interl.c that has 1 procedures, 10083 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:27:04,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:27:04,727 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;@26720047, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:27:04,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:27:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 10083 states, 10081 states have (on average 1.5010415633369705) internal successors, (15132), 10082 states have internal predecessors, (15132), 0 states have call successors, (0), 0 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 06:27:04,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-12-02 06:27:04,775 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:04,776 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:04,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:04,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:04,782 INFO L85 PathProgramCache]: Analyzing trace with hash -76356535, now seen corresponding path program 1 times [2024-12-02 06:27:04,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:04,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719484058] [2024-12-02 06:27:04,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:04,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:06,990 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 06:27:06,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:06,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719484058] [2024-12-02 06:27:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719484058] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:27:06,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:27:06,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:27:06,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833978634] [2024-12-02 06:27:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:27:07,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:27:07,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:07,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:27:07,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:27:07,050 INFO L87 Difference]: Start difference. First operand has 10083 states, 10081 states have (on average 1.5010415633369705) internal successors, (15132), 10082 states have internal predecessors, (15132), 0 states have call successors, (0), 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 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 06:27:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:27:07,632 INFO L93 Difference]: Finished difference Result 19915 states and 29891 transitions. [2024-12-02 06:27:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:27:07,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 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 419 [2024-12-02 06:27:07,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:27:07,694 INFO L225 Difference]: With dead ends: 19915 [2024-12-02 06:27:07,694 INFO L226 Difference]: Without dead ends: 10082 [2024-12-02 06:27:07,711 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 06:27:07,714 INFO L435 NwaCegarLoop]: 15126 mSDtfsCounter, 0 mSDsluCounter, 30246 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45372 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:27:07,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45372 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:27:07,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10082 states. [2024-12-02 06:27:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10082 to 10082. [2024-12-02 06:27:07,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10082 states, 10081 states have (on average 1.5008431703204048) internal successors, (15130), 10081 states have internal predecessors, (15130), 0 states have call successors, (0), 0 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 06:27:08,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10082 states to 10082 states and 15130 transitions. [2024-12-02 06:27:08,028 INFO L78 Accepts]: Start accepts. Automaton has 10082 states and 15130 transitions. Word has length 419 [2024-12-02 06:27:08,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:27:08,030 INFO L471 AbstractCegarLoop]: Abstraction has 10082 states and 15130 transitions. [2024-12-02 06:27:08,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 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 06:27:08,030 INFO L276 IsEmpty]: Start isEmpty. Operand 10082 states and 15130 transitions. [2024-12-02 06:27:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-12-02 06:27:08,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:08,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:08,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 06:27:08,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:08,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1929612555, now seen corresponding path program 1 times [2024-12-02 06:27:08,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:08,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843272432] [2024-12-02 06:27:08,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:09,021 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 06:27:09,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:09,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843272432] [2024-12-02 06:27:09,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843272432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:27:09,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:27:09,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:27:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749376190] [2024-12-02 06:27:09,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:27:09,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:27:09,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:09,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:27:09,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:27:09,026 INFO L87 Difference]: Start difference. First operand 10082 states and 15130 transitions. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 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 06:27:09,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:27:09,397 INFO L93 Difference]: Finished difference Result 19916 states and 29889 transitions. [2024-12-02 06:27:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:27:09,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 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 420 [2024-12-02 06:27:09,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:27:09,434 INFO L225 Difference]: With dead ends: 19916 [2024-12-02 06:27:09,434 INFO L226 Difference]: Without dead ends: 10084 [2024-12-02 06:27:09,443 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 06:27:09,444 INFO L435 NwaCegarLoop]: 15126 mSDtfsCounter, 0 mSDsluCounter, 30242 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45368 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:27:09,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45368 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:27:09,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10084 states. [2024-12-02 06:27:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10084 to 10084. [2024-12-02 06:27:09,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10084 states, 10083 states have (on average 1.5007438262421897) internal successors, (15132), 10083 states have internal predecessors, (15132), 0 states have call successors, (0), 0 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 06:27:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10084 states to 10084 states and 15132 transitions. [2024-12-02 06:27:09,675 INFO L78 Accepts]: Start accepts. Automaton has 10084 states and 15132 transitions. Word has length 420 [2024-12-02 06:27:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:27:09,676 INFO L471 AbstractCegarLoop]: Abstraction has 10084 states and 15132 transitions. [2024-12-02 06:27:09,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 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 06:27:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 10084 states and 15132 transitions. [2024-12-02 06:27:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-12-02 06:27:09,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:09,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:09,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:27:09,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:09,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:09,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1409516190, now seen corresponding path program 1 times [2024-12-02 06:27:09,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:09,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139488043] [2024-12-02 06:27:09,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:09,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:10,296 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 06:27:10,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:10,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139488043] [2024-12-02 06:27:10,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139488043] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:27:10,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:27:10,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:27:10,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946761949] [2024-12-02 06:27:10,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:27:10,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:27:10,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:10,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:27:10,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:27:10,299 INFO L87 Difference]: Start difference. First operand 10084 states and 15132 transitions. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 06:27:10,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:27:10,487 INFO L93 Difference]: Finished difference Result 19920 states and 29893 transitions. [2024-12-02 06:27:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:27:10,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 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 421 [2024-12-02 06:27:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:27:10,517 INFO L225 Difference]: With dead ends: 19920 [2024-12-02 06:27:10,517 INFO L226 Difference]: Without dead ends: 10086 [2024-12-02 06:27:10,525 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 06:27:10,526 INFO L435 NwaCegarLoop]: 15126 mSDtfsCounter, 0 mSDsluCounter, 30236 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45362 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:27:10,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45362 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:27:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10086 states. [2024-12-02 06:27:10,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10086 to 10086. [2024-12-02 06:27:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10086 states, 10085 states have (on average 1.5006445215666833) internal successors, (15134), 10085 states have internal predecessors, (15134), 0 states have call successors, (0), 0 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 06:27:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10086 states to 10086 states and 15134 transitions. [2024-12-02 06:27:10,669 INFO L78 Accepts]: Start accepts. Automaton has 10086 states and 15134 transitions. Word has length 421 [2024-12-02 06:27:10,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:27:10,670 INFO L471 AbstractCegarLoop]: Abstraction has 10086 states and 15134 transitions. [2024-12-02 06:27:10,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 0 states have call successors, (0), 0 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 06:27:10,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10086 states and 15134 transitions. [2024-12-02 06:27:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-12-02 06:27:10,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:10,677 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:27:10,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:27:10,677 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:10,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash 163560562, now seen corresponding path program 1 times [2024-12-02 06:27:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:10,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342111025] [2024-12-02 06:27:10,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:11,392 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 06:27:11,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:11,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342111025] [2024-12-02 06:27:11,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342111025] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:27:11,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:27:11,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:27:11,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822668398] [2024-12-02 06:27:11,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:27:11,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:27:11,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:11,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:27:11,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:27:11,394 INFO L87 Difference]: Start difference. First operand 10086 states and 15134 transitions. Second operand has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 06:27:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:27:11,751 INFO L93 Difference]: Finished difference Result 28916 states and 43393 transitions. [2024-12-02 06:27:11,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:27:11,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 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 422 [2024-12-02 06:27:11,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:27:11,781 INFO L225 Difference]: With dead ends: 28916 [2024-12-02 06:27:11,781 INFO L226 Difference]: Without dead ends: 19080 [2024-12-02 06:27:11,792 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 06:27:11,793 INFO L435 NwaCegarLoop]: 15122 mSDtfsCounter, 13462 mSDsluCounter, 44987 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13462 SdHoareTripleChecker+Valid, 60109 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:27:11,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13462 Valid, 60109 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:27:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19080 states. [2024-12-02 06:27:11,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19080 to 10658. [2024-12-02 06:27:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5006099277470208) internal successors, (15992), 10657 states have internal predecessors, (15992), 0 states have call successors, (0), 0 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 06:27:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15992 transitions. [2024-12-02 06:27:11,990 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15992 transitions. Word has length 422 [2024-12-02 06:27:11,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:27:11,991 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15992 transitions. [2024-12-02 06:27:11,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 06:27:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15992 transitions. [2024-12-02 06:27:12,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5306 [2024-12-02 06:27:12,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:27:12,159 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:27:12,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:27:12,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:27:12,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:27:12,163 INFO L85 PathProgramCache]: Analyzing trace with hash 628930573, now seen corresponding path program 1 times [2024-12-02 06:27:12,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:27:12,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618221950] [2024-12-02 06:27:12,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:27:12,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:27:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:27:35,074 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:27:35,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:27:35,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618221950] [2024-12-02 06:27:35,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618221950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:27:35,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:27:35,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:27:35,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890016097] [2024-12-02 06:27:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:27:35,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:27:35,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:27:35,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:27:35,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:27:35,090 INFO L87 Difference]: Start difference. First operand 10658 states and 15992 transitions. Second operand has 4 states, 4 states have (on average 1326.25) internal successors, (5305), 4 states have internal predecessors, (5305), 0 states have call successors, (0), 0 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 06:27:39,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:27:43,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:27:47,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:27:51,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:27:55,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:27:59,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:28:03,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:28:04,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:28:04,181 INFO L93 Difference]: Finished difference Result 20494 states and 30752 transitions. [2024-12-02 06:28:04,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:28:04,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1326.25) internal successors, (5305), 4 states have internal predecessors, (5305), 0 states have call successors, (0), 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 5305 [2024-12-02 06:28:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:28:04,199 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:28:04,199 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:28:04,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:28:04,206 INFO L435 NwaCegarLoop]: 15112 mSDtfsCounter, 14710 mSDsluCounter, 15110 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14710 SdHoareTripleChecker+Valid, 30222 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:28:04,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14710 Valid, 30222 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 28.8s Time] [2024-12-02 06:28:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:28:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:28:04,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5005160927090175) internal successors, (15991), 10657 states have internal predecessors, (15991), 0 states have call successors, (0), 0 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 06:28:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15991 transitions. [2024-12-02 06:28:04,335 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15991 transitions. Word has length 5305 [2024-12-02 06:28:04,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:28:04,336 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15991 transitions. [2024-12-02 06:28:04,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1326.25) internal successors, (5305), 4 states have internal predecessors, (5305), 0 states have call successors, (0), 0 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 06:28:04,337 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15991 transitions. [2024-12-02 06:28:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5307 [2024-12-02 06:28:04,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:28:04,553 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:28:04,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:28:04,553 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:28:04,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:28:04,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1947064455, now seen corresponding path program 1 times [2024-12-02 06:28:04,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:28:04,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962731040] [2024-12-02 06:28:04,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:28:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:28:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:28:23,493 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:28:23,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:28:23,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962731040] [2024-12-02 06:28:23,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962731040] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:28:23,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:28:23,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:28:23,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650308158] [2024-12-02 06:28:23,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:28:23,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:28:23,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:28:23,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:28:23,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:28:23,502 INFO L87 Difference]: Start difference. First operand 10658 states and 15991 transitions. Second operand has 4 states, 4 states have (on average 1326.5) internal successors, (5306), 4 states have internal predecessors, (5306), 0 states have call successors, (0), 0 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 06:28:27,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:28:31,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:28:35,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:28:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:28:36,164 INFO L93 Difference]: Finished difference Result 20494 states and 30750 transitions. [2024-12-02 06:28:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:28:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1326.5) internal successors, (5306), 4 states have internal predecessors, (5306), 0 states have call successors, (0), 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 5306 [2024-12-02 06:28:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:28:36,188 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:28:36,188 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:28:36,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:28:36,196 INFO L435 NwaCegarLoop]: 15111 mSDtfsCounter, 14706 mSDsluCounter, 15109 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14706 SdHoareTripleChecker+Valid, 30220 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:28:36,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14706 Valid, 30220 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2024-12-02 06:28:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:28:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:28:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5004222576710144) internal successors, (15990), 10657 states have internal predecessors, (15990), 0 states have call successors, (0), 0 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 06:28:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15990 transitions. [2024-12-02 06:28:36,357 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15990 transitions. Word has length 5306 [2024-12-02 06:28:36,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:28:36,359 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15990 transitions. [2024-12-02 06:28:36,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1326.5) internal successors, (5306), 4 states have internal predecessors, (5306), 0 states have call successors, (0), 0 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 06:28:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15990 transitions. [2024-12-02 06:28:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5308 [2024-12-02 06:28:36,640 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:28:36,643 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:28:36,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:28:36,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:28:36,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:28:36,647 INFO L85 PathProgramCache]: Analyzing trace with hash -439939231, now seen corresponding path program 1 times [2024-12-02 06:28:36,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:28:36,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411770497] [2024-12-02 06:28:36,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:28:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:28:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:28:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:28:56,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:28:56,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411770497] [2024-12-02 06:28:56,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411770497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:28:56,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:28:56,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:28:56,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15355305] [2024-12-02 06:28:56,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:28:56,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:28:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:28:56,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:28:56,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:28:56,059 INFO L87 Difference]: Start difference. First operand 10658 states and 15990 transitions. Second operand has 4 states, 4 states have (on average 1326.75) internal successors, (5307), 4 states have internal predecessors, (5307), 0 states have call successors, (0), 0 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 06:29:00,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:04,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:10,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:14,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:14,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:29:14,437 INFO L93 Difference]: Finished difference Result 20494 states and 30748 transitions. [2024-12-02 06:29:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:29:14,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1326.75) internal successors, (5307), 4 states have internal predecessors, (5307), 0 states have call successors, (0), 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 5307 [2024-12-02 06:29:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:29:14,462 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:29:14,463 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:29:14,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:29:14,471 INFO L435 NwaCegarLoop]: 15110 mSDtfsCounter, 14702 mSDsluCounter, 15108 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14702 SdHoareTripleChecker+Valid, 30218 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-12-02 06:29:14,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14702 Valid, 30218 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2024-12-02 06:29:14,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:29:14,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:29:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5003284226330111) internal successors, (15989), 10657 states have internal predecessors, (15989), 0 states have call successors, (0), 0 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 06:29:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15989 transitions. [2024-12-02 06:29:14,616 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15989 transitions. Word has length 5307 [2024-12-02 06:29:14,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:29:14,617 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15989 transitions. [2024-12-02 06:29:14,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1326.75) internal successors, (5307), 4 states have internal predecessors, (5307), 0 states have call successors, (0), 0 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 06:29:14,619 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15989 transitions. [2024-12-02 06:29:14,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5309 [2024-12-02 06:29:14,822 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:29:14,824 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:29:14,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 06:29:14,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:29:14,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:29:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash -189402917, now seen corresponding path program 1 times [2024-12-02 06:29:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:29:14,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023413248] [2024-12-02 06:29:14,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:29:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:29:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:29:34,276 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:29:34,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:29:34,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023413248] [2024-12-02 06:29:34,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023413248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:29:34,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:29:34,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:29:34,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110554307] [2024-12-02 06:29:34,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:29:34,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:29:34,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:29:34,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:29:34,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:29:34,286 INFO L87 Difference]: Start difference. First operand 10658 states and 15989 transitions. Second operand has 4 states, 4 states have (on average 1327.0) internal successors, (5308), 4 states have internal predecessors, (5308), 0 states have call successors, (0), 0 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 06:29:38,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:42,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:46,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:50,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:54,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:58,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:29:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:29:58,641 INFO L93 Difference]: Finished difference Result 20494 states and 30746 transitions. [2024-12-02 06:29:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:29:58,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1327.0) internal successors, (5308), 4 states have internal predecessors, (5308), 0 states have call successors, (0), 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 5308 [2024-12-02 06:29:58,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:29:58,659 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:29:58,659 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:29:58,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:29:58,665 INFO L435 NwaCegarLoop]: 15109 mSDtfsCounter, 14698 mSDsluCounter, 15107 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14698 SdHoareTripleChecker+Valid, 30216 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:29:58,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14698 Valid, 30216 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 24.2s Time] [2024-12-02 06:29:58,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:29:58,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:29:58,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.500234587595008) internal successors, (15988), 10657 states have internal predecessors, (15988), 0 states have call successors, (0), 0 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 06:29:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15988 transitions. [2024-12-02 06:29:58,802 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15988 transitions. Word has length 5308 [2024-12-02 06:29:58,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:29:58,803 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15988 transitions. [2024-12-02 06:29:58,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1327.0) internal successors, (5308), 4 states have internal predecessors, (5308), 0 states have call successors, (0), 0 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 06:29:58,805 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15988 transitions. [2024-12-02 06:29:59,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5310 [2024-12-02 06:29:59,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:29:59,016 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:29:59,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 06:29:59,016 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:29:59,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:29:59,020 INFO L85 PathProgramCache]: Analyzing trace with hash -55005003, now seen corresponding path program 1 times [2024-12-02 06:29:59,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:29:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226802137] [2024-12-02 06:29:59,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:29:59,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:30:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:30:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:30:18,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:30:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226802137] [2024-12-02 06:30:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226802137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:30:18,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:30:18,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:30:18,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990934809] [2024-12-02 06:30:18,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:30:18,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:30:18,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:30:18,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:30:18,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:30:18,580 INFO L87 Difference]: Start difference. First operand 10658 states and 15988 transitions. Second operand has 4 states, 4 states have (on average 1327.25) internal successors, (5309), 4 states have internal predecessors, (5309), 0 states have call successors, (0), 0 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 06:30:22,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:30:26,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:30:30,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:30:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:30:30,580 INFO L93 Difference]: Finished difference Result 20494 states and 30744 transitions. [2024-12-02 06:30:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:30:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1327.25) internal successors, (5309), 4 states have internal predecessors, (5309), 0 states have call successors, (0), 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 5309 [2024-12-02 06:30:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:30:30,592 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:30:30,592 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:30:30,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:30:30,597 INFO L435 NwaCegarLoop]: 15108 mSDtfsCounter, 14694 mSDsluCounter, 15106 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14694 SdHoareTripleChecker+Valid, 30214 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-12-02 06:30:30,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14694 Valid, 30214 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2024-12-02 06:30:30,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:30:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:30:30,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5001407525570047) internal successors, (15987), 10657 states have internal predecessors, (15987), 0 states have call successors, (0), 0 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 06:30:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15987 transitions. [2024-12-02 06:30:30,735 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15987 transitions. Word has length 5309 [2024-12-02 06:30:30,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:30:30,737 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15987 transitions. [2024-12-02 06:30:30,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1327.25) internal successors, (5309), 4 states have internal predecessors, (5309), 0 states have call successors, (0), 0 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 06:30:30,738 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15987 transitions. [2024-12-02 06:30:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5311 [2024-12-02 06:30:30,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:30:30,982 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:30:30,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 06:30:30,982 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:30:30,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:30:30,985 INFO L85 PathProgramCache]: Analyzing trace with hash -280964305, now seen corresponding path program 1 times [2024-12-02 06:30:30,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:30:30,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585249851] [2024-12-02 06:30:30,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:30:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:30:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:30:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:30:51,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:30:51,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585249851] [2024-12-02 06:30:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585249851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:30:51,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:30:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:30:51,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072537694] [2024-12-02 06:30:51,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:30:51,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:30:51,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:30:51,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:30:51,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:30:51,642 INFO L87 Difference]: Start difference. First operand 10658 states and 15987 transitions. Second operand has 4 states, 4 states have (on average 1327.5) internal successors, (5310), 4 states have internal predecessors, (5310), 0 states have call successors, (0), 0 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 06:30:54,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:30:58,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:31:04,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:31:05,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:31:05,187 INFO L93 Difference]: Finished difference Result 20494 states and 30742 transitions. [2024-12-02 06:31:05,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:31:05,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1327.5) internal successors, (5310), 4 states have internal predecessors, (5310), 0 states have call successors, (0), 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 5310 [2024-12-02 06:31:05,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:31:05,200 INFO L225 Difference]: With dead ends: 20494 [2024-12-02 06:31:05,201 INFO L226 Difference]: Without dead ends: 10658 [2024-12-02 06:31:05,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:31:05,209 INFO L435 NwaCegarLoop]: 15107 mSDtfsCounter, 14690 mSDsluCounter, 15105 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14690 SdHoareTripleChecker+Valid, 30212 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-12-02 06:31:05,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14690 Valid, 30212 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2024-12-02 06:31:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10658 states. [2024-12-02 06:31:05,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10658 to 10658. [2024-12-02 06:31:05,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10658 states, 10657 states have (on average 1.5000469175190017) internal successors, (15986), 10657 states have internal predecessors, (15986), 0 states have call successors, (0), 0 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 06:31:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10658 states to 10658 states and 15986 transitions. [2024-12-02 06:31:05,351 INFO L78 Accepts]: Start accepts. Automaton has 10658 states and 15986 transitions. Word has length 5310 [2024-12-02 06:31:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:31:05,352 INFO L471 AbstractCegarLoop]: Abstraction has 10658 states and 15986 transitions. [2024-12-02 06:31:05,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1327.5) internal successors, (5310), 4 states have internal predecessors, (5310), 0 states have call successors, (0), 0 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 06:31:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 10658 states and 15986 transitions. [2024-12-02 06:31:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5312 [2024-12-02 06:31:05,619 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:31:05,621 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:31:05,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 06:31:05,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:31:05,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:31:05,626 INFO L85 PathProgramCache]: Analyzing trace with hash 736533513, now seen corresponding path program 1 times [2024-12-02 06:31:05,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:31:05,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984604624] [2024-12-02 06:31:05,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:31:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:31:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:31:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:31:26,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:31:26,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984604624] [2024-12-02 06:31:26,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984604624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:31:26,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:31:26,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:31:26,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921067981] [2024-12-02 06:31:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:31:26,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:31:26,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:31:26,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:31:26,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:31:26,330 INFO L87 Difference]: Start difference. First operand 10658 states and 15986 transitions. Second operand has 3 states, 3 states have (on average 1770.3333333333333) internal successors, (5311), 3 states have internal predecessors, (5311), 0 states have call successors, (0), 0 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 06:31:26,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:31:26,424 INFO L93 Difference]: Finished difference Result 20495 states and 30742 transitions. [2024-12-02 06:31:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:31:26,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1770.3333333333333) internal successors, (5311), 3 states have internal predecessors, (5311), 0 states have call successors, (0), 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 5311 [2024-12-02 06:31:26,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:31:26,433 INFO L225 Difference]: With dead ends: 20495 [2024-12-02 06:31:26,433 INFO L226 Difference]: Without dead ends: 10659 [2024-12-02 06:31:26,438 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 06:31:26,439 INFO L435 NwaCegarLoop]: 15121 mSDtfsCounter, 0 mSDsluCounter, 15115 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30236 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:31:26,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30236 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:31:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2024-12-02 06:31:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10659. [2024-12-02 06:31:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10659 states, 10658 states have (on average 1.5) internal successors, (15987), 10658 states have internal predecessors, (15987), 0 states have call successors, (0), 0 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 06:31:26,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10659 states to 10659 states and 15987 transitions. [2024-12-02 06:31:26,536 INFO L78 Accepts]: Start accepts. Automaton has 10659 states and 15987 transitions. Word has length 5311 [2024-12-02 06:31:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:31:26,537 INFO L471 AbstractCegarLoop]: Abstraction has 10659 states and 15987 transitions. [2024-12-02 06:31:26,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1770.3333333333333) internal successors, (5311), 3 states have internal predecessors, (5311), 0 states have call successors, (0), 0 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 06:31:26,538 INFO L276 IsEmpty]: Start isEmpty. Operand 10659 states and 15987 transitions. [2024-12-02 06:31:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5312 [2024-12-02 06:31:26,759 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:31:26,765 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:31:26,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 06:31:26,765 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:31:26,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:31:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash -79224198, now seen corresponding path program 1 times [2024-12-02 06:31:26,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:31:26,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894453888] [2024-12-02 06:31:26,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:31:26,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:31:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:31:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:31:46,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:31:46,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894453888] [2024-12-02 06:31:46,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894453888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:31:46,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:31:46,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:31:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627298148] [2024-12-02 06:31:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:31:46,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:31:46,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:31:46,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:31:46,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:31:46,484 INFO L87 Difference]: Start difference. First operand 10659 states and 15987 transitions. Second operand has 4 states, 4 states have (on average 1327.75) internal successors, (5311), 4 states have internal predecessors, (5311), 0 states have call successors, (0), 0 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 06:31:50,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:31:54,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:31:58,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:02,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:06,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:10,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:14,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:32:15,080 INFO L93 Difference]: Finished difference Result 20496 states and 30742 transitions. [2024-12-02 06:32:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:32:15,081 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1327.75) internal successors, (5311), 4 states have internal predecessors, (5311), 0 states have call successors, (0), 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 5311 [2024-12-02 06:32:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:32:15,088 INFO L225 Difference]: With dead ends: 20496 [2024-12-02 06:32:15,088 INFO L226 Difference]: Without dead ends: 10659 [2024-12-02 06:32:15,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:32:15,094 INFO L435 NwaCegarLoop]: 15106 mSDtfsCounter, 14626 mSDsluCounter, 15104 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14626 SdHoareTripleChecker+Valid, 30210 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2024-12-02 06:32:15,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14626 Valid, 30210 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 7 Unknown, 0 Unchecked, 28.5s Time] [2024-12-02 06:32:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2024-12-02 06:32:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10659. [2024-12-02 06:32:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10659 states, 10658 states have (on average 1.499906173766185) internal successors, (15986), 10658 states have internal predecessors, (15986), 0 states have call successors, (0), 0 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 06:32:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10659 states to 10659 states and 15986 transitions. [2024-12-02 06:32:15,193 INFO L78 Accepts]: Start accepts. Automaton has 10659 states and 15986 transitions. Word has length 5311 [2024-12-02 06:32:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:32:15,193 INFO L471 AbstractCegarLoop]: Abstraction has 10659 states and 15986 transitions. [2024-12-02 06:32:15,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1327.75) internal successors, (5311), 4 states have internal predecessors, (5311), 0 states have call successors, (0), 0 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 06:32:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10659 states and 15986 transitions. [2024-12-02 06:32:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5313 [2024-12-02 06:32:15,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:32:15,524 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:32:15,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 06:32:15,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:32:15,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:32:15,526 INFO L85 PathProgramCache]: Analyzing trace with hash 929965948, now seen corresponding path program 1 times [2024-12-02 06:32:15,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:32:15,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963976607] [2024-12-02 06:32:15,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:32:15,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:32:24,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:32:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:32:34,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:32:34,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963976607] [2024-12-02 06:32:34,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963976607] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:32:34,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:32:34,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:32:34,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054532574] [2024-12-02 06:32:34,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:32:34,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:32:34,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:32:34,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:32:34,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:32:34,935 INFO L87 Difference]: Start difference. First operand 10659 states and 15986 transitions. Second operand has 4 states, 4 states have (on average 1328.0) internal successors, (5312), 4 states have internal predecessors, (5312), 0 states have call successors, (0), 0 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 06:32:39,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:43,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 06:32:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:32:43,893 INFO L93 Difference]: Finished difference Result 20496 states and 30740 transitions. [2024-12-02 06:32:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:32:43,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1328.0) internal successors, (5312), 4 states have internal predecessors, (5312), 0 states have call successors, (0), 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 5312 [2024-12-02 06:32:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:32:43,901 INFO L225 Difference]: With dead ends: 20496 [2024-12-02 06:32:43,902 INFO L226 Difference]: Without dead ends: 10659 [2024-12-02 06:32:43,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:32:43,907 INFO L435 NwaCegarLoop]: 15105 mSDtfsCounter, 14622 mSDsluCounter, 15103 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14622 SdHoareTripleChecker+Valid, 30208 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:32:43,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14622 Valid, 30208 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2024-12-02 06:32:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10659 states. [2024-12-02 06:32:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10659 to 10659. [2024-12-02 06:32:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10659 states, 10658 states have (on average 1.4998123475323701) internal successors, (15985), 10658 states have internal predecessors, (15985), 0 states have call successors, (0), 0 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 06:32:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10659 states to 10659 states and 15985 transitions. [2024-12-02 06:32:43,984 INFO L78 Accepts]: Start accepts. Automaton has 10659 states and 15985 transitions. Word has length 5312 [2024-12-02 06:32:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:32:43,985 INFO L471 AbstractCegarLoop]: Abstraction has 10659 states and 15985 transitions. [2024-12-02 06:32:43,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1328.0) internal successors, (5312), 4 states have internal predecessors, (5312), 0 states have call successors, (0), 0 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 06:32:43,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10659 states and 15985 transitions. [2024-12-02 06:32:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5314 [2024-12-02 06:32:44,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:32:44,171 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:32:44,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 06:32:44,172 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:32:44,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:32:44,174 INFO L85 PathProgramCache]: Analyzing trace with hash 188481230, now seen corresponding path program 1 times [2024-12-02 06:32:44,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:32:44,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294541181] [2024-12-02 06:32:44,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:32:44,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:32:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:33:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:33:04,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:33:04,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294541181] [2024-12-02 06:33:04,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294541181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:33:04,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:33:04,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 06:33:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798009632] [2024-12-02 06:33:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:33:04,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 06:33:04,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:33:04,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 06:33:04,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 06:33:04,371 INFO L87 Difference]: Start difference. First operand 10659 states and 15985 transitions. Second operand has 3 states, 3 states have (on average 1771.0) internal successors, (5313), 3 states have internal predecessors, (5313), 0 states have call successors, (0), 0 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 06:33:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:33:04,512 INFO L93 Difference]: Finished difference Result 20497 states and 30740 transitions. [2024-12-02 06:33:04,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 06:33:04,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1771.0) internal successors, (5313), 3 states have internal predecessors, (5313), 0 states have call successors, (0), 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 5313 [2024-12-02 06:33:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:33:04,522 INFO L225 Difference]: With dead ends: 20497 [2024-12-02 06:33:04,522 INFO L226 Difference]: Without dead ends: 10660 [2024-12-02 06:33:04,528 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 06:33:04,529 INFO L435 NwaCegarLoop]: 15119 mSDtfsCounter, 0 mSDsluCounter, 15113 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30232 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:33:04,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30232 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:33:04,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2024-12-02 06:33:04,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 10660. [2024-12-02 06:33:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10659 states have (on average 1.4997654564218033) internal successors, (15986), 10659 states have internal predecessors, (15986), 0 states have call successors, (0), 0 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 06:33:04,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15986 transitions. [2024-12-02 06:33:04,910 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15986 transitions. Word has length 5313 [2024-12-02 06:33:04,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:33:04,910 INFO L471 AbstractCegarLoop]: Abstraction has 10660 states and 15986 transitions. [2024-12-02 06:33:04,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1771.0) internal successors, (5313), 3 states have internal predecessors, (5313), 0 states have call successors, (0), 0 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 06:33:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15986 transitions. [2024-12-02 06:33:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5314 [2024-12-02 06:33:05,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:33:05,038 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:33:05,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 06:33:05,038 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:33:05,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:33:05,040 INFO L85 PathProgramCache]: Analyzing trace with hash -966803139, now seen corresponding path program 1 times [2024-12-02 06:33:05,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:33:05,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482134792] [2024-12-02 06:33:05,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:33:05,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:33:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:33:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:33:24,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:33:24,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482134792] [2024-12-02 06:33:24,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482134792] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:33:24,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:33:24,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:33:24,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187135209] [2024-12-02 06:33:24,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:33:24,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:33:24,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:33:24,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:33:24,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:33:24,203 INFO L87 Difference]: Start difference. First operand 10660 states and 15986 transitions. Second operand has 4 states, 4 states have (on average 1328.25) internal successors, (5313), 4 states have internal predecessors, (5313), 0 states have call successors, (0), 0 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 06:33:24,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:33:24,523 INFO L93 Difference]: Finished difference Result 20498 states and 30740 transitions. [2024-12-02 06:33:24,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:33:24,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1328.25) internal successors, (5313), 4 states have internal predecessors, (5313), 0 states have call successors, (0), 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 5313 [2024-12-02 06:33:24,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:33:24,531 INFO L225 Difference]: With dead ends: 20498 [2024-12-02 06:33:24,532 INFO L226 Difference]: Without dead ends: 10660 [2024-12-02 06:33:24,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:33:24,538 INFO L435 NwaCegarLoop]: 15107 mSDtfsCounter, 14574 mSDsluCounter, 15105 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14574 SdHoareTripleChecker+Valid, 30212 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 06:33:24,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14574 Valid, 30212 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 06:33:24,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10660 states. [2024-12-02 06:33:24,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10660 to 10660. [2024-12-02 06:33:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10660 states, 10659 states have (on average 1.4996716389905245) internal successors, (15985), 10659 states have internal predecessors, (15985), 0 states have call successors, (0), 0 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 06:33:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10660 states to 10660 states and 15985 transitions. [2024-12-02 06:33:24,905 INFO L78 Accepts]: Start accepts. Automaton has 10660 states and 15985 transitions. Word has length 5313 [2024-12-02 06:33:24,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:33:24,906 INFO L471 AbstractCegarLoop]: Abstraction has 10660 states and 15985 transitions. [2024-12-02 06:33:24,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1328.25) internal successors, (5313), 4 states have internal predecessors, (5313), 0 states have call successors, (0), 0 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 06:33:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10660 states and 15985 transitions. [2024-12-02 06:33:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5315 [2024-12-02 06:33:25,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:33:25,032 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-12-02 06:33:25,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 06:33:25,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:33:25,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:33:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2010310421, now seen corresponding path program 1 times [2024-12-02 06:33:25,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:33:25,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690011053] [2024-12-02 06:33:25,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:33:25,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:33:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat