./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.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_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/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_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/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_3f473125-eabc-4f57-8aba-93f9ee560544/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 7b1eaa116faef0972e69419ae852ad956005b7be6a0ba654f44ba13faf9873e4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:33:23,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:33:23,544 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:33:23,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:33:23,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:33:23,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:33:23,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:33:23,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:33:23,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:33:23,571 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:33:23,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:33:23,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:33:23,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:33:23,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:33:23,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:33:23,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:33:23,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:33:23,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:33:23,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:33:23,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:33:23,575 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_3f473125-eabc-4f57-8aba-93f9ee560544/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 -> 7b1eaa116faef0972e69419ae852ad956005b7be6a0ba654f44ba13faf9873e4 [2024-12-02 08:33:23,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:33:23,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:33:23,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:33:23,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:33:23,820 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:33:23,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c [2024-12-02 08:33:26,488 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/data/949de3b0f/c6014f02c8834aec9c5d48efc0574712/FLAGe7c13d4b4 [2024-12-02 08:33:26,808 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:33:26,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c [2024-12-02 08:33:26,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/data/949de3b0f/c6014f02c8834aec9c5d48efc0574712/FLAGe7c13d4b4 [2024-12-02 08:33:26,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/data/949de3b0f/c6014f02c8834aec9c5d48efc0574712 [2024-12-02 08:33:26,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:33:26,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:33:26,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:33:26,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:33:26,848 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:33:26,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:33:26" (1/1) ... [2024-12-02 08:33:26,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573580c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:26, skipping insertion in model container [2024-12-02 08:33:26,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:33:26" (1/1) ... [2024-12-02 08:33:26,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:33:27,066 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_3f473125-eabc-4f57-8aba-93f9ee560544/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c[1177,1190] [2024-12-02 08:33:27,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:33:27,588 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:33:27,597 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_3f473125-eabc-4f57-8aba-93f9ee560544/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-back-serstep.c[1177,1190] [2024-12-02 08:33:27,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:33:27,933 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:33:27,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27 WrapperNode [2024-12-02 08:33:27,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:33:27,934 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:33:27,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:33:27,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:33:27,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:28,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,048 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15276 [2024-12-02 08:33:29,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:33:29,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:33:29,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:33:29,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:33:29,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,611 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 08:33:29,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,611 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,924 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:29,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:30,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:30,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:30,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:33:30,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:33:30,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:33:30,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:33:30,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (1/1) ... [2024-12-02 08:33:30,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:33:30,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:33:30,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:33:30,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:33:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:33:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:33:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:33:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:33:30,966 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:33:30,967 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:33:57,209 INFO L? ?]: Removed 8521 outVars from TransFormulas that were not future-live. [2024-12-02 08:33:57,209 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:33:57,272 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:33:57,272 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:33:57,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:33:57 BoogieIcfgContainer [2024-12-02 08:33:57,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:33:57,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:33:57,274 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:33:57,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:33:57,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:33:26" (1/3) ... [2024-12-02 08:33:57,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70741c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:33:57, skipping insertion in model container [2024-12-02 08:33:57,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:33:27" (2/3) ... [2024-12-02 08:33:57,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70741c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:33:57, skipping insertion in model container [2024-12-02 08:33:57,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:33:57" (3/3) ... [2024-12-02 08:33:57,281 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.2.prop1-back-serstep.c [2024-12-02 08:33:57,295 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:33:57,296 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.szymanski.2.prop1-back-serstep.c that has 1 procedures, 5178 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:33:57,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:33:57,433 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;@576e7085, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:33:57,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:33:57,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 5178 states, 5176 states have (on average 1.4998068006182381) internal successors, (7763), 5177 states have internal predecessors, (7763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:33:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-12-02 08:33:57,475 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:33:57,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:33:57,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:33:57,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:33:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash -703102094, now seen corresponding path program 1 times [2024-12-02 08:33:57,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:33:57,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472120858] [2024-12-02 08:33:57,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:33:57,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:33:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:33:59,733 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 08:33:59,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:33:59,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472120858] [2024-12-02 08:33:59,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472120858] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:33:59,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:33:59,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:33:59,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695290036] [2024-12-02 08:33:59,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:33:59,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:33:59,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:33:59,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:33:59,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:33:59,774 INFO L87 Difference]: Start difference. First operand has 5178 states, 5176 states have (on average 1.4998068006182381) internal successors, (7763), 5177 states have internal predecessors, (7763), 0 states have call successors, (0), 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 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:00,099 INFO L93 Difference]: Finished difference Result 10141 states and 15207 transitions. [2024-12-02 08:34:00,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:00,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 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 485 [2024-12-02 08:34:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:00,131 INFO L225 Difference]: With dead ends: 10141 [2024-12-02 08:34:00,131 INFO L226 Difference]: Without dead ends: 5177 [2024-12-02 08:34:00,141 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 08:34:00,144 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15508 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23265 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:00,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23265 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2024-12-02 08:34:00,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 5177. [2024-12-02 08:34:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5177 states, 5176 states have (on average 1.4994204018547141) internal successors, (7761), 5176 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:00,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5177 states to 5177 states and 7761 transitions. [2024-12-02 08:34:00,317 INFO L78 Accepts]: Start accepts. Automaton has 5177 states and 7761 transitions. Word has length 485 [2024-12-02 08:34:00,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:00,319 INFO L471 AbstractCegarLoop]: Abstraction has 5177 states and 7761 transitions. [2024-12-02 08:34:00,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:00,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5177 states and 7761 transitions. [2024-12-02 08:34:00,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-12-02 08:34:00,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:00,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:00,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:34:00,330 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:00,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:00,331 INFO L85 PathProgramCache]: Analyzing trace with hash -319630161, now seen corresponding path program 1 times [2024-12-02 08:34:00,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:00,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179956] [2024-12-02 08:34:00,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:01,324 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 08:34:01,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179956] [2024-12-02 08:34:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:01,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:01,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:34:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683822091] [2024-12-02 08:34:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:01,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:34:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:01,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:34:01,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:34:01,328 INFO L87 Difference]: Start difference. First operand 5177 states and 7761 transitions. Second operand has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:01,540 INFO L93 Difference]: Finished difference Result 10142 states and 15205 transitions. [2024-12-02 08:34:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:01,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 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 486 [2024-12-02 08:34:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:01,560 INFO L225 Difference]: With dead ends: 10142 [2024-12-02 08:34:01,560 INFO L226 Difference]: Without dead ends: 5179 [2024-12-02 08:34:01,566 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 08:34:01,567 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:01,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5179 states. [2024-12-02 08:34:01,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5179 to 5179. [2024-12-02 08:34:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5179 states, 5178 states have (on average 1.4992275009656237) internal successors, (7763), 5178 states have internal predecessors, (7763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:01,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5179 states to 5179 states and 7763 transitions. [2024-12-02 08:34:01,692 INFO L78 Accepts]: Start accepts. Automaton has 5179 states and 7763 transitions. Word has length 486 [2024-12-02 08:34:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:01,693 INFO L471 AbstractCegarLoop]: Abstraction has 5179 states and 7763 transitions. [2024-12-02 08:34:01,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5179 states and 7763 transitions. [2024-12-02 08:34:01,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-12-02 08:34:01,703 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:01,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:01,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:34:01,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:01,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:01,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1878404075, now seen corresponding path program 1 times [2024-12-02 08:34:01,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:01,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201236907] [2024-12-02 08:34:01,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:01,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:02,449 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 08:34:02,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:02,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201236907] [2024-12-02 08:34:02,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201236907] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:02,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:02,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:34:02,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056152565] [2024-12-02 08:34:02,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:02,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:34:02,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:02,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:34:02,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:34:02,452 INFO L87 Difference]: Start difference. First operand 5179 states and 7763 transitions. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:02,683 INFO L93 Difference]: Finished difference Result 15087 states and 22618 transitions. [2024-12-02 08:34:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:34:02,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 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 487 [2024-12-02 08:34:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:02,705 INFO L225 Difference]: With dead ends: 15087 [2024-12-02 08:34:02,705 INFO L226 Difference]: Without dead ends: 10122 [2024-12-02 08:34:02,711 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 08:34:02,712 INFO L435 NwaCegarLoop]: 7755 mSDtfsCounter, 7252 mSDsluCounter, 22940 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7252 SdHoareTripleChecker+Valid, 30695 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:02,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7252 Valid, 30695 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:02,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2024-12-02 08:34:02,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5921. [2024-12-02 08:34:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5920 states have (on average 1.4991554054054055) internal successors, (8875), 5920 states have internal predecessors, (8875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 8875 transitions. [2024-12-02 08:34:02,826 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 8875 transitions. Word has length 487 [2024-12-02 08:34:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:02,827 INFO L471 AbstractCegarLoop]: Abstraction has 5921 states and 8875 transitions. [2024-12-02 08:34:02,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:02,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 8875 transitions. [2024-12-02 08:34:02,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2969 [2024-12-02 08:34:02,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:02,987 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:34:02,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:34:02,987 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:02,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:02,991 INFO L85 PathProgramCache]: Analyzing trace with hash -173687466, now seen corresponding path program 1 times [2024-12-02 08:34:02,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:02,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641647574] [2024-12-02 08:34:02,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:02,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-12-02 08:34:12,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:12,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641647574] [2024-12-02 08:34:12,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641647574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:12,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:12,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:34:12,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823214091] [2024-12-02 08:34:12,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:12,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:34:12,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:12,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:34:12,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:34:12,769 INFO L87 Difference]: Start difference. First operand 5921 states and 8875 transitions. Second operand has 5 states, 5 states have (on average 519.8) internal successors, (2599), 5 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:12,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:12,948 INFO L93 Difference]: Finished difference Result 10890 states and 16323 transitions. [2024-12-02 08:34:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 519.8) internal successors, (2599), 5 states have internal predecessors, (2599), 0 states have call successors, (0), 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 2968 [2024-12-02 08:34:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:12,975 INFO L225 Difference]: With dead ends: 10890 [2024-12-02 08:34:12,975 INFO L226 Difference]: Without dead ends: 5925 [2024-12-02 08:34:12,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:34:12,982 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 23255 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31012 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:12,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31012 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:34:12,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-12-02 08:34:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5921. [2024-12-02 08:34:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5921 states, 5920 states have (on average 1.4991554054054055) internal successors, (8875), 5920 states have internal predecessors, (8875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5921 states to 5921 states and 8875 transitions. [2024-12-02 08:34:13,122 INFO L78 Accepts]: Start accepts. Automaton has 5921 states and 8875 transitions. Word has length 2968 [2024-12-02 08:34:13,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:13,128 INFO L471 AbstractCegarLoop]: Abstraction has 5921 states and 8875 transitions. [2024-12-02 08:34:13,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 519.8) internal successors, (2599), 5 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:13,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5921 states and 8875 transitions. [2024-12-02 08:34:13,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2970 [2024-12-02 08:34:13,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:13,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:13,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:34:13,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:13,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:13,206 INFO L85 PathProgramCache]: Analyzing trace with hash -180454229, now seen corresponding path program 1 times [2024-12-02 08:34:13,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:13,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029958766] [2024-12-02 08:34:13,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-12-02 08:34:21,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:21,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029958766] [2024-12-02 08:34:21,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029958766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:21,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:21,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:34:21,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871041106] [2024-12-02 08:34:21,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:21,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:34:21,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:21,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:34:21,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:34:21,992 INFO L87 Difference]: Start difference. First operand 5921 states and 8875 transitions. Second operand has 4 states, 4 states have (on average 650.5) internal successors, (2602), 4 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:22,221 INFO L93 Difference]: Finished difference Result 10894 states and 16329 transitions. [2024-12-02 08:34:22,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:22,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 650.5) internal successors, (2602), 4 states have internal predecessors, (2602), 0 states have call successors, (0), 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 2969 [2024-12-02 08:34:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:22,242 INFO L225 Difference]: With dead ends: 10894 [2024-12-02 08:34:22,242 INFO L226 Difference]: Without dead ends: 5925 [2024-12-02 08:34:22,248 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 08:34:22,250 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:22,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:22,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2024-12-02 08:34:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5923. [2024-12-02 08:34:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5922 states have (on average 1.4989868287740629) internal successors, (8877), 5922 states have internal predecessors, (8877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 8877 transitions. [2024-12-02 08:34:22,362 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 8877 transitions. Word has length 2969 [2024-12-02 08:34:22,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:22,364 INFO L471 AbstractCegarLoop]: Abstraction has 5923 states and 8877 transitions. [2024-12-02 08:34:22,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 650.5) internal successors, (2602), 4 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:22,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 8877 transitions. [2024-12-02 08:34:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2971 [2024-12-02 08:34:22,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:22,436 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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WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:34:22,437 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:22,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:22,440 INFO L85 PathProgramCache]: Analyzing trace with hash -184917489, now seen corresponding path program 1 times [2024-12-02 08:34:22,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620185247] [2024-12-02 08:34:22,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:22,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:30,856 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-12-02 08:34:30,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620185247] [2024-12-02 08:34:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620185247] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:30,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:30,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:34:30,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373069456] [2024-12-02 08:34:30,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:30,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:34:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:30,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:34:30,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:34:30,862 INFO L87 Difference]: Start difference. First operand 5923 states and 8877 transitions. Second operand has 5 states, 5 states have (on average 521.0) internal successors, (2605), 5 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:31,060 INFO L93 Difference]: Finished difference Result 10902 states and 16339 transitions. [2024-12-02 08:34:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:31,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 521.0) internal successors, (2605), 5 states have internal predecessors, (2605), 0 states have call successors, (0), 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 2970 [2024-12-02 08:34:31,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:31,074 INFO L225 Difference]: With dead ends: 10902 [2024-12-02 08:34:31,074 INFO L226 Difference]: Without dead ends: 5927 [2024-12-02 08:34:31,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:34:31,080 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 23255 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31012 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:31,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31012 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5927 states. [2024-12-02 08:34:31,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5927 to 5925. [2024-12-02 08:34:31,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5925 states, 5924 states have (on average 1.4988183659689398) internal successors, (8879), 5924 states have internal predecessors, (8879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 8879 transitions. [2024-12-02 08:34:31,192 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 8879 transitions. Word has length 2970 [2024-12-02 08:34:31,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:31,195 INFO L471 AbstractCegarLoop]: Abstraction has 5925 states and 8879 transitions. [2024-12-02 08:34:31,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 521.0) internal successors, (2605), 5 states have internal predecessors, (2605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 8879 transitions. [2024-12-02 08:34:31,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2972 [2024-12-02 08:34:31,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:31,365 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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08:34:31,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:34:31,365 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:31,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:31,367 INFO L85 PathProgramCache]: Analyzing trace with hash -73954190, now seen corresponding path program 1 times [2024-12-02 08:34:31,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:31,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754818362] [2024-12-02 08:34:31,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:31,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-12-02 08:34:39,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:39,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754818362] [2024-12-02 08:34:39,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754818362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:39,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:39,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:34:39,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964332314] [2024-12-02 08:34:39,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:39,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:34:39,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:39,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:34:39,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:34:39,164 INFO L87 Difference]: Start difference. First operand 5925 states and 8879 transitions. Second operand has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:39,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:39,359 INFO L93 Difference]: Finished difference Result 10910 states and 16349 transitions. [2024-12-02 08:34:39,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:39,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 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 2971 [2024-12-02 08:34:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:39,376 INFO L225 Difference]: With dead ends: 10910 [2024-12-02 08:34:39,376 INFO L226 Difference]: Without dead ends: 5929 [2024-12-02 08:34:39,381 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 08:34:39,382 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:39,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5929 states. [2024-12-02 08:34:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5929 to 5927. [2024-12-02 08:34:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5926 states have (on average 1.4986500168747892) internal successors, (8881), 5926 states have internal predecessors, (8881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 8881 transitions. [2024-12-02 08:34:39,469 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 8881 transitions. Word has length 2971 [2024-12-02 08:34:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:39,472 INFO L471 AbstractCegarLoop]: Abstraction has 5927 states and 8881 transitions. [2024-12-02 08:34:39,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 8881 transitions. [2024-12-02 08:34:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2973 [2024-12-02 08:34:39,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:39,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:39,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:34:39,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:39,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:39,609 INFO L85 PathProgramCache]: Analyzing trace with hash 694464968, now seen corresponding path program 1 times [2024-12-02 08:34:39,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:39,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224803343] [2024-12-02 08:34:39,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:39,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-12-02 08:34:47,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:47,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224803343] [2024-12-02 08:34:47,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224803343] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:47,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:47,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:34:47,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931636417] [2024-12-02 08:34:47,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:47,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:34:47,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:47,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:34:47,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:34:47,033 INFO L87 Difference]: Start difference. First operand 5927 states and 8881 transitions. Second operand has 4 states, 4 states have (on average 652.75) internal successors, (2611), 4 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:47,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:47,148 INFO L93 Difference]: Finished difference Result 10918 states and 16359 transitions. [2024-12-02 08:34:47,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:47,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 652.75) internal successors, (2611), 4 states have internal predecessors, (2611), 0 states have call successors, (0), 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 2972 [2024-12-02 08:34:47,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:47,159 INFO L225 Difference]: With dead ends: 10918 [2024-12-02 08:34:47,159 INFO L226 Difference]: Without dead ends: 5931 [2024-12-02 08:34:47,162 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 08:34:47,163 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:47,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2024-12-02 08:34:47,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 5929. [2024-12-02 08:34:47,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5929 states, 5928 states have (on average 1.4984817813765183) internal successors, (8883), 5928 states have internal predecessors, (8883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:47,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5929 states to 5929 states and 8883 transitions. [2024-12-02 08:34:47,238 INFO L78 Accepts]: Start accepts. Automaton has 5929 states and 8883 transitions. Word has length 2972 [2024-12-02 08:34:47,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:47,241 INFO L471 AbstractCegarLoop]: Abstraction has 5929 states and 8883 transitions. [2024-12-02 08:34:47,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 652.75) internal successors, (2611), 4 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:47,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5929 states and 8883 transitions. [2024-12-02 08:34:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2974 [2024-12-02 08:34:47,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:47,427 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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[2024-12-02 08:34:47,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:34:47,427 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:47,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash -472069831, now seen corresponding path program 1 times [2024-12-02 08:34:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:47,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334438446] [2024-12-02 08:34:47,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:47,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:34:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-12-02 08:34:55,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:34:55,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334438446] [2024-12-02 08:34:55,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334438446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:34:55,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:34:55,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:34:55,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907474624] [2024-12-02 08:34:55,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:34:55,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:34:55,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:34:55,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:34:55,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:34:55,304 INFO L87 Difference]: Start difference. First operand 5929 states and 8883 transitions. Second operand has 4 states, 4 states have (on average 653.5) internal successors, (2614), 4 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:34:55,397 INFO L93 Difference]: Finished difference Result 10926 states and 16369 transitions. [2024-12-02 08:34:55,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:34:55,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 653.5) internal successors, (2614), 4 states have internal predecessors, (2614), 0 states have call successors, (0), 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 2973 [2024-12-02 08:34:55,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:34:55,403 INFO L225 Difference]: With dead ends: 10926 [2024-12-02 08:34:55,403 INFO L226 Difference]: Without dead ends: 5933 [2024-12-02 08:34:55,407 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 08:34:55,407 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:34:55,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:34:55,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5933 states. [2024-12-02 08:34:55,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5933 to 5931. [2024-12-02 08:34:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 1.4983136593591906) internal successors, (8885), 5930 states have internal predecessors, (8885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:55,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 8885 transitions. [2024-12-02 08:34:55,452 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 8885 transitions. Word has length 2973 [2024-12-02 08:34:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:34:55,454 INFO L471 AbstractCegarLoop]: Abstraction has 5931 states and 8885 transitions. [2024-12-02 08:34:55,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 653.5) internal successors, (2614), 4 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:34:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 8885 transitions. [2024-12-02 08:34:55,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2975 [2024-12-02 08:34:55,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:34:55,492 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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[2024-12-02 08:34:55,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:34:55,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:34:55,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:34:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2010579839, now seen corresponding path program 1 times [2024-12-02 08:34:55,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:34:55,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569605128] [2024-12-02 08:34:55,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:34:55,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:34:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-12-02 08:35:02,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569605128] [2024-12-02 08:35:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569605128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:02,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:02,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:35:02,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796762864] [2024-12-02 08:35:02,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:02,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:35:02,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:02,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:35:02,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:35:02,363 INFO L87 Difference]: Start difference. First operand 5931 states and 8885 transitions. Second operand has 4 states, 4 states have (on average 654.25) internal successors, (2617), 4 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:02,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:02,435 INFO L93 Difference]: Finished difference Result 10934 states and 16379 transitions. [2024-12-02 08:35:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:02,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 654.25) internal successors, (2617), 4 states have internal predecessors, (2617), 0 states have call successors, (0), 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 2974 [2024-12-02 08:35:02,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:02,442 INFO L225 Difference]: With dead ends: 10934 [2024-12-02 08:35:02,442 INFO L226 Difference]: Without dead ends: 5935 [2024-12-02 08:35:02,445 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 08:35:02,445 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:02,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:02,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2024-12-02 08:35:02,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 5933. [2024-12-02 08:35:02,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5933 states, 5932 states have (on average 1.4981456507080242) internal successors, (8887), 5932 states have internal predecessors, (8887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:02,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5933 states to 5933 states and 8887 transitions. [2024-12-02 08:35:02,493 INFO L78 Accepts]: Start accepts. Automaton has 5933 states and 8887 transitions. Word has length 2974 [2024-12-02 08:35:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:02,495 INFO L471 AbstractCegarLoop]: Abstraction has 5933 states and 8887 transitions. [2024-12-02 08:35:02,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 654.25) internal successors, (2617), 4 states have internal predecessors, (2617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5933 states and 8887 transitions. [2024-12-02 08:35:02,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2976 [2024-12-02 08:35:02,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:02,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:02,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:35:02,582 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:02,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash -468065536, now seen corresponding path program 1 times [2024-12-02 08:35:02,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:02,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554772673] [2024-12-02 08:35:02,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:02,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:10,453 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2024-12-02 08:35:10,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:10,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554772673] [2024-12-02 08:35:10,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554772673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:10,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:10,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:35:10,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407466405] [2024-12-02 08:35:10,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:10,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:35:10,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:10,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:35:10,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:35:10,458 INFO L87 Difference]: Start difference. First operand 5933 states and 8887 transitions. Second operand has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:10,554 INFO L93 Difference]: Finished difference Result 10942 states and 16389 transitions. [2024-12-02 08:35:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:10,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 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 2975 [2024-12-02 08:35:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:10,564 INFO L225 Difference]: With dead ends: 10942 [2024-12-02 08:35:10,564 INFO L226 Difference]: Without dead ends: 5937 [2024-12-02 08:35:10,569 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 08:35:10,569 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:10,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5937 states. [2024-12-02 08:35:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5937 to 5935. [2024-12-02 08:35:10,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 1.4979777553083924) internal successors, (8889), 5934 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 8889 transitions. [2024-12-02 08:35:10,645 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 8889 transitions. Word has length 2975 [2024-12-02 08:35:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:10,647 INFO L471 AbstractCegarLoop]: Abstraction has 5935 states and 8889 transitions. [2024-12-02 08:35:10,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 8889 transitions. [2024-12-02 08:35:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2977 [2024-12-02 08:35:10,715 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:10,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:10,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:35:10,717 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:10,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:10,719 INFO L85 PathProgramCache]: Analyzing trace with hash -601124294, now seen corresponding path program 1 times [2024-12-02 08:35:10,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:10,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038993762] [2024-12-02 08:35:10,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:10,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-12-02 08:35:18,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:18,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038993762] [2024-12-02 08:35:18,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038993762] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:18,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:18,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:35:18,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210157459] [2024-12-02 08:35:18,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:18,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:35:18,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:18,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:35:18,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:35:18,596 INFO L87 Difference]: Start difference. First operand 5935 states and 8889 transitions. Second operand has 4 states, 4 states have (on average 655.75) internal successors, (2623), 4 states have internal predecessors, (2623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:18,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:18,665 INFO L93 Difference]: Finished difference Result 10950 states and 16399 transitions. [2024-12-02 08:35:18,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:18,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 655.75) internal successors, (2623), 4 states have internal predecessors, (2623), 0 states have call successors, (0), 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 2976 [2024-12-02 08:35:18,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:18,672 INFO L225 Difference]: With dead ends: 10950 [2024-12-02 08:35:18,672 INFO L226 Difference]: Without dead ends: 5939 [2024-12-02 08:35:18,675 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 08:35:18,675 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:18,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5939 states. [2024-12-02 08:35:18,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5939 to 5937. [2024-12-02 08:35:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5937 states, 5936 states have (on average 1.497809973045822) internal successors, (8891), 5936 states have internal predecessors, (8891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5937 states to 5937 states and 8891 transitions. [2024-12-02 08:35:18,744 INFO L78 Accepts]: Start accepts. Automaton has 5937 states and 8891 transitions. Word has length 2976 [2024-12-02 08:35:18,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:18,746 INFO L471 AbstractCegarLoop]: Abstraction has 5937 states and 8891 transitions. [2024-12-02 08:35:18,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 655.75) internal successors, (2623), 4 states have internal predecessors, (2623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:18,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5937 states and 8891 transitions. [2024-12-02 08:35:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2978 [2024-12-02 08:35:18,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:18,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:35:18,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1681557959, now seen corresponding path program 1 times [2024-12-02 08:35:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:18,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594590209] [2024-12-02 08:35:18,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:25,921 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-12-02 08:35:25,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:25,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594590209] [2024-12-02 08:35:25,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594590209] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:25,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:25,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:35:25,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184683470] [2024-12-02 08:35:25,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:25,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:35:25,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:25,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:35:25,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:35:25,925 INFO L87 Difference]: Start difference. First operand 5937 states and 8891 transitions. Second operand has 4 states, 4 states have (on average 656.5) internal successors, (2626), 4 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:25,999 INFO L93 Difference]: Finished difference Result 10958 states and 16409 transitions. [2024-12-02 08:35:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 656.5) internal successors, (2626), 4 states have internal predecessors, (2626), 0 states have call successors, (0), 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 2977 [2024-12-02 08:35:26,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:26,005 INFO L225 Difference]: With dead ends: 10958 [2024-12-02 08:35:26,006 INFO L226 Difference]: Without dead ends: 5941 [2024-12-02 08:35:26,009 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 08:35:26,009 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:26,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:26,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2024-12-02 08:35:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 5939. [2024-12-02 08:35:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 1.4976423038059954) internal successors, (8893), 5938 states have internal predecessors, (8893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:26,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 8893 transitions. [2024-12-02 08:35:26,063 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 8893 transitions. Word has length 2977 [2024-12-02 08:35:26,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:26,066 INFO L471 AbstractCegarLoop]: Abstraction has 5939 states and 8893 transitions. [2024-12-02 08:35:26,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 656.5) internal successors, (2626), 4 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 8893 transitions. [2024-12-02 08:35:26,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2979 [2024-12-02 08:35:26,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:26,187 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:26,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:35:26,187 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:26,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -151993613, now seen corresponding path program 1 times [2024-12-02 08:35:26,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:26,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370443135] [2024-12-02 08:35:26,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:26,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-12-02 08:35:34,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370443135] [2024-12-02 08:35:34,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370443135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:34,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:34,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:35:34,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950011398] [2024-12-02 08:35:34,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:34,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:35:34,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:34,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:35:34,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:35:34,063 INFO L87 Difference]: Start difference. First operand 5939 states and 8893 transitions. Second operand has 5 states, 5 states have (on average 525.8) internal successors, (2629), 5 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:34,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:34,153 INFO L93 Difference]: Finished difference Result 10966 states and 16419 transitions. [2024-12-02 08:35:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:34,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 525.8) internal successors, (2629), 5 states have internal predecessors, (2629), 0 states have call successors, (0), 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 2978 [2024-12-02 08:35:34,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:34,159 INFO L225 Difference]: With dead ends: 10966 [2024-12-02 08:35:34,159 INFO L226 Difference]: Without dead ends: 5943 [2024-12-02 08:35:34,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:35:34,162 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 23255 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31012 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:34,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31012 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:34,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2024-12-02 08:35:34,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5941. [2024-12-02 08:35:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5941 states, 5940 states have (on average 1.4974747474747474) internal successors, (8895), 5940 states have internal predecessors, (8895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 8895 transitions. [2024-12-02 08:35:34,207 INFO L78 Accepts]: Start accepts. Automaton has 5941 states and 8895 transitions. Word has length 2978 [2024-12-02 08:35:34,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:34,209 INFO L471 AbstractCegarLoop]: Abstraction has 5941 states and 8895 transitions. [2024-12-02 08:35:34,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 525.8) internal successors, (2629), 5 states have internal predecessors, (2629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5941 states and 8895 transitions. [2024-12-02 08:35:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2980 [2024-12-02 08:35:34,245 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:34,246 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:34,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:35:34,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:34,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1292529038, now seen corresponding path program 1 times [2024-12-02 08:35:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:34,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108148027] [2024-12-02 08:35:34,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:35:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-12-02 08:35:41,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:35:41,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108148027] [2024-12-02 08:35:41,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108148027] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:35:41,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:35:41,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:35:41,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456160898] [2024-12-02 08:35:41,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:35:41,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:35:41,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:35:41,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:35:41,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:35:41,958 INFO L87 Difference]: Start difference. First operand 5941 states and 8895 transitions. Second operand has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:42,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:35:42,032 INFO L93 Difference]: Finished difference Result 10974 states and 16429 transitions. [2024-12-02 08:35:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:35:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 0 states have call successors, (0), 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 2979 [2024-12-02 08:35:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:35:42,038 INFO L225 Difference]: With dead ends: 10974 [2024-12-02 08:35:42,038 INFO L226 Difference]: Without dead ends: 5945 [2024-12-02 08:35:42,041 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 08:35:42,041 INFO L435 NwaCegarLoop]: 7757 mSDtfsCounter, 0 mSDsluCounter, 15504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23261 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:35:42,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23261 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:35:42,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2024-12-02 08:35:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 5943. [2024-12-02 08:35:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 1.497307303938068) internal successors, (8897), 5942 states have internal predecessors, (8897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:42,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8897 transitions. [2024-12-02 08:35:42,087 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8897 transitions. Word has length 2979 [2024-12-02 08:35:42,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:35:42,088 INFO L471 AbstractCegarLoop]: Abstraction has 5943 states and 8897 transitions. [2024-12-02 08:35:42,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 658.0) internal successors, (2632), 4 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:35:42,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8897 transitions. [2024-12-02 08:35:42,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2981 [2024-12-02 08:35:42,140 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:35:42,141 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:35:42,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:35:42,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:35:42,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:35:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash -509813076, now seen corresponding path program 1 times [2024-12-02 08:35:42,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:35:42,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778946644] [2024-12-02 08:35:42,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:35:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:35:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:36:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778946644] [2024-12-02 08:36:05,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778946644] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:05,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:05,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:05,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156430642] [2024-12-02 08:36:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:05,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:05,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:05,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:05,191 INFO L87 Difference]: Start difference. First operand 5943 states and 8897 transitions. Second operand has 4 states, 4 states have (on average 745.0) internal successors, (2980), 4 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:07,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:07,529 INFO L93 Difference]: Finished difference Result 15229 states and 22795 transitions. [2024-12-02 08:36:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:36:07,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 745.0) internal successors, (2980), 4 states have internal predecessors, (2980), 0 states have call successors, (0), 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 2980 [2024-12-02 08:36:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:07,534 INFO L225 Difference]: With dead ends: 15229 [2024-12-02 08:36:07,534 INFO L226 Difference]: Without dead ends: 5943 [2024-12-02 08:36:07,536 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 08:36:07,537 INFO L435 NwaCegarLoop]: 10758 mSDtfsCounter, 4647 mSDsluCounter, 16581 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4647 SdHoareTripleChecker+Valid, 27339 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:07,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4647 Valid, 27339 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 08:36:07,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5943 states. [2024-12-02 08:36:07,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5943 to 5943. [2024-12-02 08:36:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 1.4971390104341973) internal successors, (8896), 5942 states have internal predecessors, (8896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:07,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 8896 transitions. [2024-12-02 08:36:07,577 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 8896 transitions. Word has length 2980 [2024-12-02 08:36:07,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:07,578 INFO L471 AbstractCegarLoop]: Abstraction has 5943 states and 8896 transitions. [2024-12-02 08:36:07,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 745.0) internal successors, (2980), 4 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:07,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 8896 transitions. [2024-12-02 08:36:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2982 [2024-12-02 08:36:07,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:07,615 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:36:07,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:36:07,615 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:07,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:07,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1177416255, now seen corresponding path program 1 times [2024-12-02 08:36:07,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:07,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987386594] [2024-12-02 08:36:07,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:07,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-12-02 08:36:15,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:15,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987386594] [2024-12-02 08:36:15,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987386594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:15,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:15,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:15,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784070632] [2024-12-02 08:36:15,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:15,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:15,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:15,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:15,647 INFO L87 Difference]: Start difference. First operand 5943 states and 8896 transitions. Second operand has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:15,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:15,758 INFO L93 Difference]: Finished difference Result 10982 states and 16437 transitions. [2024-12-02 08:36:15,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:15,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 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 2981 [2024-12-02 08:36:15,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:15,766 INFO L225 Difference]: With dead ends: 10982 [2024-12-02 08:36:15,766 INFO L226 Difference]: Without dead ends: 5947 [2024-12-02 08:36:15,769 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 08:36:15,770 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:15,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:15,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5947 states. [2024-12-02 08:36:15,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5947 to 5945. [2024-12-02 08:36:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5945 states, 5944 states have (on average 1.496971736204576) internal successors, (8898), 5944 states have internal predecessors, (8898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5945 states to 5945 states and 8898 transitions. [2024-12-02 08:36:15,832 INFO L78 Accepts]: Start accepts. Automaton has 5945 states and 8898 transitions. Word has length 2981 [2024-12-02 08:36:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:15,834 INFO L471 AbstractCegarLoop]: Abstraction has 5945 states and 8898 transitions. [2024-12-02 08:36:15,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5945 states and 8898 transitions. [2024-12-02 08:36:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2983 [2024-12-02 08:36:15,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:15,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:15,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:36:15,926 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:15,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:15,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2067358430, now seen corresponding path program 1 times [2024-12-02 08:36:15,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:15,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13253469] [2024-12-02 08:36:15,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:15,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:23,014 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-12-02 08:36:23,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:23,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13253469] [2024-12-02 08:36:23,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13253469] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:23,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:23,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:23,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642528158] [2024-12-02 08:36:23,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:23,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:23,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:23,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:23,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:23,020 INFO L87 Difference]: Start difference. First operand 5945 states and 8898 transitions. Second operand has 4 states, 4 states have (on average 659.75) internal successors, (2639), 4 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:23,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:23,100 INFO L93 Difference]: Finished difference Result 10990 states and 16447 transitions. [2024-12-02 08:36:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:23,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 659.75) internal successors, (2639), 4 states have internal predecessors, (2639), 0 states have call successors, (0), 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 2982 [2024-12-02 08:36:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:23,106 INFO L225 Difference]: With dead ends: 10990 [2024-12-02 08:36:23,106 INFO L226 Difference]: Without dead ends: 5949 [2024-12-02 08:36:23,108 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 08:36:23,109 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:23,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5949 states. [2024-12-02 08:36:23,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5949 to 5947. [2024-12-02 08:36:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5946 states have (on average 1.496804574503868) internal successors, (8900), 5946 states have internal predecessors, (8900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8900 transitions. [2024-12-02 08:36:23,150 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8900 transitions. Word has length 2982 [2024-12-02 08:36:23,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:23,151 INFO L471 AbstractCegarLoop]: Abstraction has 5947 states and 8900 transitions. [2024-12-02 08:36:23,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 659.75) internal successors, (2639), 4 states have internal predecessors, (2639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:23,152 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8900 transitions. [2024-12-02 08:36:23,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2984 [2024-12-02 08:36:23,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:23,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:23,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:36:23,224 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:23,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:23,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1836142536, now seen corresponding path program 1 times [2024-12-02 08:36:23,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:23,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637855269] [2024-12-02 08:36:23,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:23,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-12-02 08:36:31,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:31,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637855269] [2024-12-02 08:36:31,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637855269] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:31,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:31,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102982375] [2024-12-02 08:36:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:31,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:31,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:31,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:31,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:31,126 INFO L87 Difference]: Start difference. First operand 5947 states and 8900 transitions. Second operand has 4 states, 4 states have (on average 660.5) internal successors, (2642), 4 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:31,206 INFO L93 Difference]: Finished difference Result 11004 states and 16465 transitions. [2024-12-02 08:36:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 660.5) internal successors, (2642), 4 states have internal predecessors, (2642), 0 states have call successors, (0), 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 2983 [2024-12-02 08:36:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:31,213 INFO L225 Difference]: With dead ends: 11004 [2024-12-02 08:36:31,213 INFO L226 Difference]: Without dead ends: 5961 [2024-12-02 08:36:31,216 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 08:36:31,216 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 3 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:31,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:31,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2024-12-02 08:36:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5951. [2024-12-02 08:36:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5950 states have (on average 1.4968067226890756) internal successors, (8906), 5950 states have internal predecessors, (8906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:31,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 8906 transitions. [2024-12-02 08:36:31,259 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 8906 transitions. Word has length 2983 [2024-12-02 08:36:31,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:31,261 INFO L471 AbstractCegarLoop]: Abstraction has 5951 states and 8906 transitions. [2024-12-02 08:36:31,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 660.5) internal successors, (2642), 4 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 8906 transitions. [2024-12-02 08:36:31,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2985 [2024-12-02 08:36:31,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:31,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:31,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:36:31,347 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:31,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:31,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1761315753, now seen corresponding path program 1 times [2024-12-02 08:36:31,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:31,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979087718] [2024-12-02 08:36:31,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:31,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-12-02 08:36:38,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:38,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979087718] [2024-12-02 08:36:38,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979087718] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:38,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:38,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:38,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283585886] [2024-12-02 08:36:38,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:38,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:38,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:38,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:38,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:38,059 INFO L87 Difference]: Start difference. First operand 5951 states and 8906 transitions. Second operand has 4 states, 4 states have (on average 661.25) internal successors, (2645), 4 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:38,132 INFO L93 Difference]: Finished difference Result 11010 states and 16475 transitions. [2024-12-02 08:36:38,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 661.25) internal successors, (2645), 4 states have internal predecessors, (2645), 0 states have call successors, (0), 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 2984 [2024-12-02 08:36:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:38,138 INFO L225 Difference]: With dead ends: 11010 [2024-12-02 08:36:38,138 INFO L226 Difference]: Without dead ends: 5955 [2024-12-02 08:36:38,140 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 08:36:38,141 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:38,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2024-12-02 08:36:38,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5953. [2024-12-02 08:36:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5953 states, 5952 states have (on average 1.4966397849462365) internal successors, (8908), 5952 states have internal predecessors, (8908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:38,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5953 states to 5953 states and 8908 transitions. [2024-12-02 08:36:38,186 INFO L78 Accepts]: Start accepts. Automaton has 5953 states and 8908 transitions. Word has length 2984 [2024-12-02 08:36:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:38,187 INFO L471 AbstractCegarLoop]: Abstraction has 5953 states and 8908 transitions. [2024-12-02 08:36:38,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 661.25) internal successors, (2645), 4 states have internal predecessors, (2645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:38,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5953 states and 8908 transitions. [2024-12-02 08:36:38,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2986 [2024-12-02 08:36:38,223 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:38,224 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:38,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:36:38,225 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:38,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:38,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1329735985, now seen corresponding path program 1 times [2024-12-02 08:36:38,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:38,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009483536] [2024-12-02 08:36:38,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:38,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-02 08:36:45,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:45,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009483536] [2024-12-02 08:36:45,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009483536] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:45,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:45,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:45,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850570936] [2024-12-02 08:36:45,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:45,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:45,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:45,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:45,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:45,666 INFO L87 Difference]: Start difference. First operand 5953 states and 8908 transitions. Second operand has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:45,747 INFO L93 Difference]: Finished difference Result 11024 states and 16493 transitions. [2024-12-02 08:36:45,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:45,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 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 2985 [2024-12-02 08:36:45,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:45,753 INFO L225 Difference]: With dead ends: 11024 [2024-12-02 08:36:45,753 INFO L226 Difference]: Without dead ends: 5967 [2024-12-02 08:36:45,757 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 08:36:45,757 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 3 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:45,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:45,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2024-12-02 08:36:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5957. [2024-12-02 08:36:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5957 states, 5956 states have (on average 1.4966420416386836) internal successors, (8914), 5956 states have internal predecessors, (8914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:45,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5957 states to 5957 states and 8914 transitions. [2024-12-02 08:36:45,802 INFO L78 Accepts]: Start accepts. Automaton has 5957 states and 8914 transitions. Word has length 2985 [2024-12-02 08:36:45,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:45,803 INFO L471 AbstractCegarLoop]: Abstraction has 5957 states and 8914 transitions. [2024-12-02 08:36:45,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 662.0) internal successors, (2648), 4 states have internal predecessors, (2648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:45,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5957 states and 8914 transitions. [2024-12-02 08:36:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2987 [2024-12-02 08:36:45,868 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:45,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:45,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:36:45,870 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:45,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:45,871 INFO L85 PathProgramCache]: Analyzing trace with hash -794454224, now seen corresponding path program 1 times [2024-12-02 08:36:45,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:45,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441687371] [2024-12-02 08:36:45,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:45,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:36:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-12-02 08:36:53,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:36:53,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441687371] [2024-12-02 08:36:53,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441687371] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:36:53,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:36:53,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:36:53,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665736793] [2024-12-02 08:36:53,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:36:53,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:36:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:36:53,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:36:53,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:36:53,077 INFO L87 Difference]: Start difference. First operand 5957 states and 8914 transitions. Second operand has 4 states, 4 states have (on average 662.75) internal successors, (2651), 4 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:36:53,170 INFO L93 Difference]: Finished difference Result 11030 states and 16503 transitions. [2024-12-02 08:36:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:36:53,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 662.75) internal successors, (2651), 4 states have internal predecessors, (2651), 0 states have call successors, (0), 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 2986 [2024-12-02 08:36:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:36:53,178 INFO L225 Difference]: With dead ends: 11030 [2024-12-02 08:36:53,178 INFO L226 Difference]: Without dead ends: 5961 [2024-12-02 08:36:53,182 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 08:36:53,185 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:36:53,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:36:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5961 states. [2024-12-02 08:36:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5961 to 5959. [2024-12-02 08:36:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5958 states have (on average 1.4964753272910372) internal successors, (8916), 5958 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 8916 transitions. [2024-12-02 08:36:53,250 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 8916 transitions. Word has length 2986 [2024-12-02 08:36:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:36:53,252 INFO L471 AbstractCegarLoop]: Abstraction has 5959 states and 8916 transitions. [2024-12-02 08:36:53,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 662.75) internal successors, (2651), 4 states have internal predecessors, (2651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:36:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 8916 transitions. [2024-12-02 08:36:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2988 [2024-12-02 08:36:53,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:36:53,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:53,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:36:53,330 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:36:53,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:36:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1908363990, now seen corresponding path program 1 times [2024-12-02 08:36:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:36:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125267301] [2024-12-02 08:36:53,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:36:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:36:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-12-02 08:37:00,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:00,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125267301] [2024-12-02 08:37:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125267301] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:00,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:00,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:37:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025079234] [2024-12-02 08:37:00,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:00,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:00,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:00,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:00,809 INFO L87 Difference]: Start difference. First operand 5959 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 530.8) internal successors, (2654), 5 states have internal predecessors, (2654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:00,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:00,890 INFO L93 Difference]: Finished difference Result 11044 states and 16521 transitions. [2024-12-02 08:37:00,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:00,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 530.8) internal successors, (2654), 5 states have internal predecessors, (2654), 0 states have call successors, (0), 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 2987 [2024-12-02 08:37:00,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:00,895 INFO L225 Difference]: With dead ends: 11044 [2024-12-02 08:37:00,896 INFO L226 Difference]: Without dead ends: 5973 [2024-12-02 08:37:00,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:00,898 INFO L435 NwaCegarLoop]: 7753 mSDtfsCounter, 4 mSDsluCounter, 15499 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:00,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23252 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2024-12-02 08:37:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 5963. [2024-12-02 08:37:00,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 1.4964776920496479) internal successors, (8922), 5962 states have internal predecessors, (8922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 8922 transitions. [2024-12-02 08:37:00,938 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 8922 transitions. Word has length 2987 [2024-12-02 08:37:00,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:00,939 INFO L471 AbstractCegarLoop]: Abstraction has 5963 states and 8922 transitions. [2024-12-02 08:37:00,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 530.8) internal successors, (2654), 5 states have internal predecessors, (2654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 8922 transitions. [2024-12-02 08:37:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2989 [2024-12-02 08:37:00,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:00,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:00,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:37:00,976 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:00,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:00,977 INFO L85 PathProgramCache]: Analyzing trace with hash 10252215, now seen corresponding path program 1 times [2024-12-02 08:37:00,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:00,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122013447] [2024-12-02 08:37:00,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:00,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:07,594 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-12-02 08:37:07,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:07,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122013447] [2024-12-02 08:37:07,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122013447] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:07,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:07,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:07,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784141015] [2024-12-02 08:37:07,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:07,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:07,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:07,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:07,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:07,598 INFO L87 Difference]: Start difference. First operand 5963 states and 8922 transitions. Second operand has 4 states, 4 states have (on average 664.25) internal successors, (2657), 4 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:07,672 INFO L93 Difference]: Finished difference Result 11050 states and 16531 transitions. [2024-12-02 08:37:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:07,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 664.25) internal successors, (2657), 4 states have internal predecessors, (2657), 0 states have call successors, (0), 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 2988 [2024-12-02 08:37:07,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:07,678 INFO L225 Difference]: With dead ends: 11050 [2024-12-02 08:37:07,678 INFO L226 Difference]: Without dead ends: 5967 [2024-12-02 08:37:07,680 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 08:37:07,681 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:07,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2024-12-02 08:37:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5965. [2024-12-02 08:37:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5965 states, 5964 states have (on average 1.4963112005365526) internal successors, (8924), 5964 states have internal predecessors, (8924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:07,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5965 states to 5965 states and 8924 transitions. [2024-12-02 08:37:07,720 INFO L78 Accepts]: Start accepts. Automaton has 5965 states and 8924 transitions. Word has length 2988 [2024-12-02 08:37:07,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:07,722 INFO L471 AbstractCegarLoop]: Abstraction has 5965 states and 8924 transitions. [2024-12-02 08:37:07,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 664.25) internal successors, (2657), 4 states have internal predecessors, (2657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5965 states and 8924 transitions. [2024-12-02 08:37:07,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2990 [2024-12-02 08:37:07,757 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:07,758 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:07,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:37:07,758 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:07,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 807570467, now seen corresponding path program 1 times [2024-12-02 08:37:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784944523] [2024-12-02 08:37:07,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:15,043 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2024-12-02 08:37:15,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:15,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784944523] [2024-12-02 08:37:15,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784944523] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:15,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:15,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:37:15,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498481079] [2024-12-02 08:37:15,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:15,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:15,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:15,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:15,048 INFO L87 Difference]: Start difference. First operand 5965 states and 8924 transitions. Second operand has 5 states, 5 states have (on average 532.0) internal successors, (2660), 5 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:15,171 INFO L93 Difference]: Finished difference Result 11064 states and 16549 transitions. [2024-12-02 08:37:15,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 532.0) internal successors, (2660), 5 states have internal predecessors, (2660), 0 states have call successors, (0), 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 2989 [2024-12-02 08:37:15,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:15,177 INFO L225 Difference]: With dead ends: 11064 [2024-12-02 08:37:15,177 INFO L226 Difference]: Without dead ends: 5979 [2024-12-02 08:37:15,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:15,180 INFO L435 NwaCegarLoop]: 7753 mSDtfsCounter, 4 mSDsluCounter, 15499 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:15,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23252 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:15,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5979 states. [2024-12-02 08:37:15,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5979 to 5969. [2024-12-02 08:37:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5969 states, 5968 states have (on average 1.496313672922252) internal successors, (8930), 5968 states have internal predecessors, (8930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:15,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5969 states to 5969 states and 8930 transitions. [2024-12-02 08:37:15,220 INFO L78 Accepts]: Start accepts. Automaton has 5969 states and 8930 transitions. Word has length 2989 [2024-12-02 08:37:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:15,221 INFO L471 AbstractCegarLoop]: Abstraction has 5969 states and 8930 transitions. [2024-12-02 08:37:15,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 532.0) internal successors, (2660), 5 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5969 states and 8930 transitions. [2024-12-02 08:37:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2991 [2024-12-02 08:37:15,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:15,257 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:15,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:37:15,258 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:15,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:15,259 INFO L85 PathProgramCache]: Analyzing trace with hash -694696642, now seen corresponding path program 1 times [2024-12-02 08:37:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:15,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521975183] [2024-12-02 08:37:15,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:15,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-12-02 08:37:23,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:23,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521975183] [2024-12-02 08:37:23,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521975183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:23,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:23,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:23,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568490054] [2024-12-02 08:37:23,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:23,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:23,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:23,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:23,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:23,447 INFO L87 Difference]: Start difference. First operand 5969 states and 8930 transitions. Second operand has 4 states, 4 states have (on average 666.25) internal successors, (2665), 4 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:23,648 INFO L93 Difference]: Finished difference Result 11078 states and 16571 transitions. [2024-12-02 08:37:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:23,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 666.25) internal successors, (2665), 4 states have internal predecessors, (2665), 0 states have call successors, (0), 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 2990 [2024-12-02 08:37:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:23,654 INFO L225 Difference]: With dead ends: 11078 [2024-12-02 08:37:23,654 INFO L226 Difference]: Without dead ends: 5981 [2024-12-02 08:37:23,657 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 08:37:23,657 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 4 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:23,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:37:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5981 states. [2024-12-02 08:37:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5981 to 5975. [2024-12-02 08:37:23,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5975 states, 5974 states have (on average 1.4961499832607967) internal successors, (8938), 5974 states have internal predecessors, (8938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:23,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5975 states to 5975 states and 8938 transitions. [2024-12-02 08:37:23,698 INFO L78 Accepts]: Start accepts. Automaton has 5975 states and 8938 transitions. Word has length 2990 [2024-12-02 08:37:23,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:23,699 INFO L471 AbstractCegarLoop]: Abstraction has 5975 states and 8938 transitions. [2024-12-02 08:37:23,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 666.25) internal successors, (2665), 4 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:23,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5975 states and 8938 transitions. [2024-12-02 08:37:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2992 [2024-12-02 08:37:23,734 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:23,735 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:37:23,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:37:23,735 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:23,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:23,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1870084725, now seen corresponding path program 1 times [2024-12-02 08:37:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:23,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461069101] [2024-12-02 08:37:23,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:23,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:31,053 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-12-02 08:37:31,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:31,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461069101] [2024-12-02 08:37:31,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461069101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:31,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:31,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:31,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594289926] [2024-12-02 08:37:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:31,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:31,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:31,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:31,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:31,057 INFO L87 Difference]: Start difference. First operand 5975 states and 8938 transitions. Second operand has 4 states, 4 states have (on average 667.5) internal successors, (2670), 4 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:31,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:31,156 INFO L93 Difference]: Finished difference Result 11098 states and 16599 transitions. [2024-12-02 08:37:31,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:31,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 667.5) internal successors, (2670), 4 states have internal predecessors, (2670), 0 states have call successors, (0), 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 2991 [2024-12-02 08:37:31,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:31,164 INFO L225 Difference]: With dead ends: 11098 [2024-12-02 08:37:31,164 INFO L226 Difference]: Without dead ends: 5987 [2024-12-02 08:37:31,166 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 08:37:31,167 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 4 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:31,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:31,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5987 states. [2024-12-02 08:37:31,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5987 to 5981. [2024-12-02 08:37:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5981 states, 5980 states have (on average 1.4959866220735787) internal successors, (8946), 5980 states have internal predecessors, (8946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:31,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5981 states to 5981 states and 8946 transitions. [2024-12-02 08:37:31,229 INFO L78 Accepts]: Start accepts. Automaton has 5981 states and 8946 transitions. Word has length 2991 [2024-12-02 08:37:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:31,230 INFO L471 AbstractCegarLoop]: Abstraction has 5981 states and 8946 transitions. [2024-12-02 08:37:31,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 667.5) internal successors, (2670), 4 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:31,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5981 states and 8946 transitions. [2024-12-02 08:37:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2993 [2024-12-02 08:37:31,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:31,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:31,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:37:31,323 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:31,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash -4986772, now seen corresponding path program 1 times [2024-12-02 08:37:31,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:31,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921832107] [2024-12-02 08:37:31,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:37,975 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-12-02 08:37:37,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:37,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921832107] [2024-12-02 08:37:37,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921832107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:37,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:37,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157343171] [2024-12-02 08:37:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:37,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:37,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:37,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:37,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:37,978 INFO L87 Difference]: Start difference. First operand 5981 states and 8946 transitions. Second operand has 4 states, 4 states have (on average 668.25) internal successors, (2673), 4 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:38,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:38,048 INFO L93 Difference]: Finished difference Result 11110 states and 16615 transitions. [2024-12-02 08:37:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:38,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 668.25) internal successors, (2673), 4 states have internal predecessors, (2673), 0 states have call successors, (0), 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 2992 [2024-12-02 08:37:38,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:38,054 INFO L225 Difference]: With dead ends: 11110 [2024-12-02 08:37:38,054 INFO L226 Difference]: Without dead ends: 5985 [2024-12-02 08:37:38,057 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 08:37:38,057 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:38,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:38,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5985 states. [2024-12-02 08:37:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5985 to 5983. [2024-12-02 08:37:38,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5983 states, 5982 states have (on average 1.4958207957204948) internal successors, (8948), 5982 states have internal predecessors, (8948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:38,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5983 states to 5983 states and 8948 transitions. [2024-12-02 08:37:38,097 INFO L78 Accepts]: Start accepts. Automaton has 5983 states and 8948 transitions. Word has length 2992 [2024-12-02 08:37:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:38,098 INFO L471 AbstractCegarLoop]: Abstraction has 5983 states and 8948 transitions. [2024-12-02 08:37:38,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 668.25) internal successors, (2673), 4 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5983 states and 8948 transitions. [2024-12-02 08:37:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2994 [2024-12-02 08:37:38,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:38,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:38,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:37:38,134 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:38,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1976218798, now seen corresponding path program 1 times [2024-12-02 08:37:38,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:38,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189647979] [2024-12-02 08:37:38,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:38,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:45,160 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-12-02 08:37:45,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:45,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189647979] [2024-12-02 08:37:45,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189647979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:45,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:45,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:37:45,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049817172] [2024-12-02 08:37:45,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:45,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:37:45,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:45,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:37:45,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:45,163 INFO L87 Difference]: Start difference. First operand 5983 states and 8948 transitions. Second operand has 5 states, 5 states have (on average 535.2) internal successors, (2676), 5 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:45,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:45,246 INFO L93 Difference]: Finished difference Result 11124 states and 16633 transitions. [2024-12-02 08:37:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:37:45,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 535.2) internal successors, (2676), 5 states have internal predecessors, (2676), 0 states have call successors, (0), 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 2993 [2024-12-02 08:37:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:45,252 INFO L225 Difference]: With dead ends: 11124 [2024-12-02 08:37:45,252 INFO L226 Difference]: Without dead ends: 5997 [2024-12-02 08:37:45,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:37:45,255 INFO L435 NwaCegarLoop]: 7753 mSDtfsCounter, 4 mSDsluCounter, 15499 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:45,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23252 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:45,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2024-12-02 08:37:45,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 5987. [2024-12-02 08:37:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5987 states, 5986 states have (on average 1.49582358837287) internal successors, (8954), 5986 states have internal predecessors, (8954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:45,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5987 states to 5987 states and 8954 transitions. [2024-12-02 08:37:45,295 INFO L78 Accepts]: Start accepts. Automaton has 5987 states and 8954 transitions. Word has length 2993 [2024-12-02 08:37:45,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:45,296 INFO L471 AbstractCegarLoop]: Abstraction has 5987 states and 8954 transitions. [2024-12-02 08:37:45,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 535.2) internal successors, (2676), 5 states have internal predecessors, (2676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:45,296 INFO L276 IsEmpty]: Start isEmpty. Operand 5987 states and 8954 transitions. [2024-12-02 08:37:45,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2995 [2024-12-02 08:37:45,331 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:45,332 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:45,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:37:45,332 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:45,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1138379443, now seen corresponding path program 1 times [2024-12-02 08:37:45,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:45,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683070534] [2024-12-02 08:37:45,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:45,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:37:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-12-02 08:37:52,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:37:52,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683070534] [2024-12-02 08:37:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683070534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:37:52,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:37:52,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:37:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586635086] [2024-12-02 08:37:52,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:37:52,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:37:52,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:37:52,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:37:52,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:37:52,550 INFO L87 Difference]: Start difference. First operand 5987 states and 8954 transitions. Second operand has 4 states, 4 states have (on average 670.25) internal successors, (2681), 4 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:37:52,632 INFO L93 Difference]: Finished difference Result 11138 states and 16655 transitions. [2024-12-02 08:37:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:37:52,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 670.25) internal successors, (2681), 4 states have internal predecessors, (2681), 0 states have call successors, (0), 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 2994 [2024-12-02 08:37:52,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:37:52,638 INFO L225 Difference]: With dead ends: 11138 [2024-12-02 08:37:52,638 INFO L226 Difference]: Without dead ends: 5999 [2024-12-02 08:37:52,641 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 08:37:52,641 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 4 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:37:52,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:37:52,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5999 states. [2024-12-02 08:37:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5999 to 5993. [2024-12-02 08:37:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5993 states, 5992 states have (on average 1.4956608811749) internal successors, (8962), 5992 states have internal predecessors, (8962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:52,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5993 states to 5993 states and 8962 transitions. [2024-12-02 08:37:52,884 INFO L78 Accepts]: Start accepts. Automaton has 5993 states and 8962 transitions. Word has length 2994 [2024-12-02 08:37:52,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:37:52,885 INFO L471 AbstractCegarLoop]: Abstraction has 5993 states and 8962 transitions. [2024-12-02 08:37:52,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 670.25) internal successors, (2681), 4 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:37:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5993 states and 8962 transitions. [2024-12-02 08:37:52,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2996 [2024-12-02 08:37:52,920 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:37:52,921 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:52,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:37:52,921 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:37:52,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:37:52,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2136286144, now seen corresponding path program 1 times [2024-12-02 08:37:52,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:37:52,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168094747] [2024-12-02 08:37:52,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:37:52,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:37:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-12-02 08:38:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:00,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168094747] [2024-12-02 08:38:00,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168094747] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:00,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:00,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:38:00,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675760523] [2024-12-02 08:38:00,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:00,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:38:00,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:00,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:38:00,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:38:00,115 INFO L87 Difference]: Start difference. First operand 5993 states and 8962 transitions. Second operand has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:00,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:00,189 INFO L93 Difference]: Finished difference Result 11150 states and 16671 transitions. [2024-12-02 08:38:00,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:38:00,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 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 2995 [2024-12-02 08:38:00,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:00,195 INFO L225 Difference]: With dead ends: 11150 [2024-12-02 08:38:00,195 INFO L226 Difference]: Without dead ends: 5997 [2024-12-02 08:38:00,198 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 08:38:00,198 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:00,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5997 states. [2024-12-02 08:38:00,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5997 to 5995. [2024-12-02 08:38:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5995 states, 5994 states have (on average 1.4954954954954955) internal successors, (8964), 5994 states have internal predecessors, (8964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5995 states to 5995 states and 8964 transitions. [2024-12-02 08:38:00,238 INFO L78 Accepts]: Start accepts. Automaton has 5995 states and 8964 transitions. Word has length 2995 [2024-12-02 08:38:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:00,240 INFO L471 AbstractCegarLoop]: Abstraction has 5995 states and 8964 transitions. [2024-12-02 08:38:00,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 671.0) internal successors, (2684), 4 states have internal predecessors, (2684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:00,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5995 states and 8964 transitions. [2024-12-02 08:38:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2997 [2024-12-02 08:38:00,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:00,276 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:00,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:38:00,276 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:00,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1482793126, now seen corresponding path program 1 times [2024-12-02 08:38:00,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:00,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755988164] [2024-12-02 08:38:00,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:00,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:07,881 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2024-12-02 08:38:07,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:07,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755988164] [2024-12-02 08:38:07,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755988164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:07,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:07,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:07,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178996784] [2024-12-02 08:38:07,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:07,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:38:07,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:07,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:38:07,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:07,884 INFO L87 Difference]: Start difference. First operand 5995 states and 8964 transitions. Second operand has 5 states, 5 states have (on average 537.4) internal successors, (2687), 5 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:08,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:08,009 INFO L93 Difference]: Finished difference Result 11164 states and 16689 transitions. [2024-12-02 08:38:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:38:08,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 537.4) internal successors, (2687), 5 states have internal predecessors, (2687), 0 states have call successors, (0), 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 2996 [2024-12-02 08:38:08,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:08,017 INFO L225 Difference]: With dead ends: 11164 [2024-12-02 08:38:08,017 INFO L226 Difference]: Without dead ends: 6009 [2024-12-02 08:38:08,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:08,021 INFO L435 NwaCegarLoop]: 7753 mSDtfsCounter, 4 mSDsluCounter, 15499 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:08,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23252 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:38:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2024-12-02 08:38:08,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5999. [2024-12-02 08:38:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5998 states have (on average 1.4954984994998333) internal successors, (8970), 5998 states have internal predecessors, (8970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 8970 transitions. [2024-12-02 08:38:08,073 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 8970 transitions. Word has length 2996 [2024-12-02 08:38:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:08,074 INFO L471 AbstractCegarLoop]: Abstraction has 5999 states and 8970 transitions. [2024-12-02 08:38:08,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 537.4) internal successors, (2687), 5 states have internal predecessors, (2687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 8970 transitions. [2024-12-02 08:38:08,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2998 [2024-12-02 08:38:08,110 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:08,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:08,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:38:08,111 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:08,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash -755127527, now seen corresponding path program 1 times [2024-12-02 08:38:08,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:08,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577722283] [2024-12-02 08:38:08,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-12-02 08:38:14,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:14,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577722283] [2024-12-02 08:38:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577722283] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:14,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:14,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:38:14,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538229182] [2024-12-02 08:38:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:14,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:38:14,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:14,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:38:14,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:38:14,663 INFO L87 Difference]: Start difference. First operand 5999 states and 8970 transitions. Second operand has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:14,742 INFO L93 Difference]: Finished difference Result 11170 states and 16699 transitions. [2024-12-02 08:38:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:38:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 0 states have call successors, (0), 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 2997 [2024-12-02 08:38:14,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:14,748 INFO L225 Difference]: With dead ends: 11170 [2024-12-02 08:38:14,748 INFO L226 Difference]: Without dead ends: 6003 [2024-12-02 08:38:14,750 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 08:38:14,750 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 0 mSDsluCounter, 15496 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23252 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:14,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23252 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:14,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6003 states. [2024-12-02 08:38:14,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6003 to 6001. [2024-12-02 08:38:14,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6001 states, 6000 states have (on average 1.4953333333333334) internal successors, (8972), 6000 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6001 states to 6001 states and 8972 transitions. [2024-12-02 08:38:14,790 INFO L78 Accepts]: Start accepts. Automaton has 6001 states and 8972 transitions. Word has length 2997 [2024-12-02 08:38:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:14,791 INFO L471 AbstractCegarLoop]: Abstraction has 6001 states and 8972 transitions. [2024-12-02 08:38:14,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 672.5) internal successors, (2690), 4 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6001 states and 8972 transitions. [2024-12-02 08:38:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2999 [2024-12-02 08:38:14,826 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:14,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:14,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:38:14,827 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:14,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1387325183, now seen corresponding path program 1 times [2024-12-02 08:38:14,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:14,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949254961] [2024-12-02 08:38:14,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:14,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-12-02 08:38:22,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:22,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949254961] [2024-12-02 08:38:22,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949254961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:22,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:22,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:38:22,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871780759] [2024-12-02 08:38:22,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:22,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:38:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:22,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:38:22,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:22,504 INFO L87 Difference]: Start difference. First operand 6001 states and 8972 transitions. Second operand has 5 states, 5 states have (on average 538.6) internal successors, (2693), 5 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:22,630 INFO L93 Difference]: Finished difference Result 11184 states and 16717 transitions. [2024-12-02 08:38:22,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:38:22,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 538.6) internal successors, (2693), 5 states have internal predecessors, (2693), 0 states have call successors, (0), 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 2998 [2024-12-02 08:38:22,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:22,639 INFO L225 Difference]: With dead ends: 11184 [2024-12-02 08:38:22,639 INFO L226 Difference]: Without dead ends: 6015 [2024-12-02 08:38:22,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:38:22,643 INFO L435 NwaCegarLoop]: 7753 mSDtfsCounter, 3 mSDsluCounter, 23243 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30996 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:22,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30996 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6015 states. [2024-12-02 08:38:22,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6015 to 6005. [2024-12-02 08:38:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6005 states, 6004 states have (on average 1.4953364423717521) internal successors, (8978), 6004 states have internal predecessors, (8978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6005 states to 6005 states and 8978 transitions. [2024-12-02 08:38:22,706 INFO L78 Accepts]: Start accepts. Automaton has 6005 states and 8978 transitions. Word has length 2998 [2024-12-02 08:38:22,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:22,708 INFO L471 AbstractCegarLoop]: Abstraction has 6005 states and 8978 transitions. [2024-12-02 08:38:22,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 538.6) internal successors, (2693), 5 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6005 states and 8978 transitions. [2024-12-02 08:38:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3000 [2024-12-02 08:38:22,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:22,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:22,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:38:22,766 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:22,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:22,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2011888882, now seen corresponding path program 1 times [2024-12-02 08:38:22,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:22,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369701709] [2024-12-02 08:38:22,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:22,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-12-02 08:38:31,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:31,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369701709] [2024-12-02 08:38:31,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369701709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:31,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:31,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:38:31,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908859680] [2024-12-02 08:38:31,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:31,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:38:31,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:31,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:38:31,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:38:31,382 INFO L87 Difference]: Start difference. First operand 6005 states and 8978 transitions. Second operand has 4 states, 4 states have (on average 674.5) internal successors, (2698), 4 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:31,472 INFO L93 Difference]: Finished difference Result 11198 states and 16739 transitions. [2024-12-02 08:38:31,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:38:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 674.5) internal successors, (2698), 4 states have internal predecessors, (2698), 0 states have call successors, (0), 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 2999 [2024-12-02 08:38:31,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:31,478 INFO L225 Difference]: With dead ends: 11198 [2024-12-02 08:38:31,479 INFO L226 Difference]: Without dead ends: 6017 [2024-12-02 08:38:31,481 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 08:38:31,482 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 4 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:31,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2024-12-02 08:38:31,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 6011. [2024-12-02 08:38:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6011 states, 6010 states have (on average 1.4951747088186356) internal successors, (8986), 6010 states have internal predecessors, (8986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6011 states to 6011 states and 8986 transitions. [2024-12-02 08:38:31,528 INFO L78 Accepts]: Start accepts. Automaton has 6011 states and 8986 transitions. Word has length 2999 [2024-12-02 08:38:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:31,530 INFO L471 AbstractCegarLoop]: Abstraction has 6011 states and 8986 transitions. [2024-12-02 08:38:31,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 674.5) internal successors, (2698), 4 states have internal predecessors, (2698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6011 states and 8986 transitions. [2024-12-02 08:38:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3001 [2024-12-02 08:38:31,569 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:31,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:31,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:38:31,571 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:31,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash 25080431, now seen corresponding path program 1 times [2024-12-02 08:38:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:31,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359705003] [2024-12-02 08:38:31,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:31,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-12-02 08:38:38,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:38,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359705003] [2024-12-02 08:38:38,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359705003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:38:38,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:38:38,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:38:38,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886665475] [2024-12-02 08:38:38,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:38:38,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:38:38,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:38:38,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:38:38,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:38:38,953 INFO L87 Difference]: Start difference. First operand 6011 states and 8986 transitions. Second operand has 4 states, 4 states have (on average 675.75) internal successors, (2703), 4 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:39,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:38:39,039 INFO L93 Difference]: Finished difference Result 11218 states and 16767 transitions. [2024-12-02 08:38:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:38:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 675.75) internal successors, (2703), 4 states have internal predecessors, (2703), 0 states have call successors, (0), 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 3000 [2024-12-02 08:38:39,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:38:39,046 INFO L225 Difference]: With dead ends: 11218 [2024-12-02 08:38:39,046 INFO L226 Difference]: Without dead ends: 6023 [2024-12-02 08:38:39,049 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 08:38:39,049 INFO L435 NwaCegarLoop]: 7756 mSDtfsCounter, 4 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23258 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:38:39,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23258 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:38:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2024-12-02 08:38:39,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6017. [2024-12-02 08:38:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6017 states, 6016 states have (on average 1.4950132978723405) internal successors, (8994), 6016 states have internal predecessors, (8994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6017 states to 6017 states and 8994 transitions. [2024-12-02 08:38:39,095 INFO L78 Accepts]: Start accepts. Automaton has 6017 states and 8994 transitions. Word has length 3000 [2024-12-02 08:38:39,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:38:39,096 INFO L471 AbstractCegarLoop]: Abstraction has 6017 states and 8994 transitions. [2024-12-02 08:38:39,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 675.75) internal successors, (2703), 4 states have internal predecessors, (2703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:38:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6017 states and 8994 transitions. [2024-12-02 08:38:39,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3002 [2024-12-02 08:38:39,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:38:39,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:39,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 08:38:39,133 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:38:39,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:38:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1182699004, now seen corresponding path program 1 times [2024-12-02 08:38:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:38:39,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502566934] [2024-12-02 08:38:39,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:39,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:38:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:38:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:38:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:38:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502566934] [2024-12-02 08:38:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502566934] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:38:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104337817] [2024-12-02 08:38:47,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:38:47,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:38:47,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:38:47,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:38:47,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:39:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:39:03,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 13867 conjuncts, 233 conjuncts are in the unsatisfiable core [2024-12-02 08:39:03,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:39:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 4 proven. 372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:39:11,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:39:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:39:16,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104337817] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:39:16,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:39:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [7, 66] total 126 [2024-12-02 08:39:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386006170] [2024-12-02 08:39:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:39:16,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-12-02 08:39:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:39:16,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-12-02 08:39:16,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2644, Invalid=13106, Unknown=0, NotChecked=0, Total=15750 [2024-12-02 08:39:16,681 INFO L87 Difference]: Start difference. First operand 6017 states and 8994 transitions. Second operand has 57 states, 57 states have (on average 52.64912280701754) internal successors, (3001), 57 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:40:26,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:40:26,242 INFO L93 Difference]: Finished difference Result 18470 states and 27579 transitions. [2024-12-02 08:40:26,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 08:40:26,243 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 52.64912280701754) internal successors, (3001), 57 states have internal predecessors, (3001), 0 states have call successors, (0), 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 3001 [2024-12-02 08:40:26,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:40:26,251 INFO L225 Difference]: With dead ends: 18470 [2024-12-02 08:40:26,251 INFO L226 Difference]: Without dead ends: 13407 [2024-12-02 08:40:26,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6015 GetRequests, 5886 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6760 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=2907, Invalid=14123, Unknown=0, NotChecked=0, Total=17030 [2024-12-02 08:40:26,256 INFO L435 NwaCegarLoop]: 16344 mSDtfsCounter, 163194 mSDsluCounter, 464535 mSDsCounter, 0 mSdLazyCounter, 129237 mSolverCounterSat, 5499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163194 SdHoareTripleChecker+Valid, 480879 SdHoareTripleChecker+Invalid, 134736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.9s SdHoareTripleChecker+Time, 5499 IncrementalHoareTripleChecker+Valid, 129237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:40:26,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163194 Valid, 480879 Invalid, 134736 Unknown, 0 Unchecked, 0.9s Time], IncrementalHoareTripleChecker [5499 Valid, 129237 Invalid, 0 Unknown, 0 Unchecked, 65.2s Time] [2024-12-02 08:40:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13407 states. [2024-12-02 08:40:26,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13407 to 6770. [2024-12-02 08:40:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6770 states, 6769 states have (on average 1.4954941645737923) internal successors, (10123), 6769 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:40:26,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6770 states to 6770 states and 10123 transitions. [2024-12-02 08:40:26,323 INFO L78 Accepts]: Start accepts. Automaton has 6770 states and 10123 transitions. Word has length 3001 [2024-12-02 08:40:26,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:40:26,325 INFO L471 AbstractCegarLoop]: Abstraction has 6770 states and 10123 transitions. [2024-12-02 08:40:26,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 52.64912280701754) internal successors, (3001), 57 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:40:26,326 INFO L276 IsEmpty]: Start isEmpty. Operand 6770 states and 10123 transitions. [2024-12-02 08:40:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3003 [2024-12-02 08:40:26,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:40:26,363 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:26,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:40:26,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-02 08:40:26,564 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:40:26,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:40:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1992824186, now seen corresponding path program 1 times [2024-12-02 08:40:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:40:26,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666001763] [2024-12-02 08:40:26,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:40:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:35,058 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:40:35,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:40:35,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666001763] [2024-12-02 08:40:35,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666001763] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:35,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896619767] [2024-12-02 08:40:35,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:40:35,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:40:35,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:40:35,061 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:40:35,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:40:40,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:40:40,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 13868 conjuncts, 173 conjuncts are in the unsatisfiable core [2024-12-02 08:40:40,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:40:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 2 proven. 374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:40:46,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:40:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-12-02 08:40:48,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896619767] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:40:48,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:40:48,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [7, 44] total 80 [2024-12-02 08:40:48,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243064658] [2024-12-02 08:40:48,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:40:48,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-12-02 08:40:48,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:40:48,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-12-02 08:40:48,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1137, Invalid=5183, Unknown=0, NotChecked=0, Total=6320 [2024-12-02 08:40:48,013 INFO L87 Difference]: Start difference. First operand 6770 states and 10123 transitions. Second operand has 33 states, 33 states have (on average 81.12121212121212) internal successors, (2677), 33 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:23,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:23,443 INFO L93 Difference]: Finished difference Result 12840 states and 19179 transitions. [2024-12-02 08:41:23,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-12-02 08:41:23,444 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 81.12121212121212) internal successors, (2677), 33 states have internal predecessors, (2677), 0 states have call successors, (0), 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 3002 [2024-12-02 08:41:23,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:23,448 INFO L225 Difference]: With dead ends: 12840 [2024-12-02 08:41:23,449 INFO L226 Difference]: Without dead ends: 7023 [2024-12-02 08:41:23,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6054 GetRequests, 5954 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4328 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=2608, Invalid=7694, Unknown=0, NotChecked=0, Total=10302 [2024-12-02 08:41:23,452 INFO L435 NwaCegarLoop]: 6859 mSDtfsCounter, 30964 mSDsluCounter, 170664 mSDsCounter, 0 mSdLazyCounter, 57628 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30964 SdHoareTripleChecker+Valid, 177523 SdHoareTripleChecker+Invalid, 57699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 57628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:23,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30964 Valid, 177523 Invalid, 57699 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [71 Valid, 57628 Invalid, 0 Unknown, 0 Unchecked, 31.4s Time] [2024-12-02 08:41:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7023 states. [2024-12-02 08:41:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7023 to 6857. [2024-12-02 08:41:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6857 states, 6856 states have (on average 1.4975204200700116) internal successors, (10267), 6856 states have internal predecessors, (10267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6857 states to 6857 states and 10267 transitions. [2024-12-02 08:41:23,506 INFO L78 Accepts]: Start accepts. Automaton has 6857 states and 10267 transitions. Word has length 3002 [2024-12-02 08:41:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:23,507 INFO L471 AbstractCegarLoop]: Abstraction has 6857 states and 10267 transitions. [2024-12-02 08:41:23,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 81.12121212121212) internal successors, (2677), 33 states have internal predecessors, (2677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6857 states and 10267 transitions. [2024-12-02 08:41:23,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3003 [2024-12-02 08:41:23,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:23,546 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:23,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:41:23,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 08:41:23,746 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:23,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:23,747 INFO L85 PathProgramCache]: Analyzing trace with hash -739382535, now seen corresponding path program 1 times [2024-12-02 08:41:23,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:41:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363403754] [2024-12-02 08:41:23,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:41:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:32,195 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:41:32,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:41:32,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363403754] [2024-12-02 08:41:32,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363403754] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:32,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996222034] [2024-12-02 08:41:32,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:32,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:41:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:41:32,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:41:32,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:41:37,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:38,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 13868 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 08:41:38,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:41:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 4 proven. 372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:41:39,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:41:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:41:40,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996222034] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:40,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:41:40,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 14] total 25 [2024-12-02 08:41:40,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591094091] [2024-12-02 08:41:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:41:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:41:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:41:40,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:41:40,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:41:40,525 INFO L87 Difference]: Start difference. First operand 6857 states and 10267 transitions. Second operand has 8 states, 8 states have (on average 375.25) internal successors, (3002), 8 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:40,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:41:40,927 INFO L93 Difference]: Finished difference Result 17057 states and 25520 transitions. [2024-12-02 08:41:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:41:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 375.25) internal successors, (3002), 8 states have internal predecessors, (3002), 0 states have call successors, (0), 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 3002 [2024-12-02 08:41:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:41:40,934 INFO L225 Difference]: With dead ends: 17057 [2024-12-02 08:41:40,935 INFO L226 Difference]: Without dead ends: 11154 [2024-12-02 08:41:40,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6011 GetRequests, 5987 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2024-12-02 08:41:40,938 INFO L435 NwaCegarLoop]: 15162 mSDtfsCounter, 7015 mSDsluCounter, 83544 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7015 SdHoareTripleChecker+Valid, 98706 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:41:40,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7015 Valid, 98706 Invalid, 59 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:41:40,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2024-12-02 08:41:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 6069. [2024-12-02 08:41:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6068 states have (on average 1.496044825313118) internal successors, (9078), 6068 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 9078 transitions. [2024-12-02 08:41:40,998 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 9078 transitions. Word has length 3002 [2024-12-02 08:41:41,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:41:41,000 INFO L471 AbstractCegarLoop]: Abstraction has 6069 states and 9078 transitions. [2024-12-02 08:41:41,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 375.25) internal successors, (3002), 8 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:41:41,000 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 9078 transitions. [2024-12-02 08:41:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3003 [2024-12-02 08:41:41,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:41:41,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:41:41,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:41:41,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 08:41:41,238 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:41:41,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:41:41,239 INFO L85 PathProgramCache]: Analyzing trace with hash -125215521, now seen corresponding path program 1 times [2024-12-02 08:41:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:41:41,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606961519] [2024-12-02 08:41:41,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:41,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:41:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:41:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:41:49,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:41:49,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606961519] [2024-12-02 08:41:49,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606961519] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:41:49,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534111278] [2024-12-02 08:41:49,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:41:49,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:41:49,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:41:49,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:41:49,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:42:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:05,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 13870 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:42:05,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:42:07,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:07,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534111278] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:07,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:07,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:42:07,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001286230] [2024-12-02 08:42:07,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:07,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:42:07,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:07,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:42:07,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:07,768 INFO L87 Difference]: Start difference. First operand 6069 states and 9078 transitions. Second operand has 6 states, 6 states have (on average 500.3333333333333) internal successors, (3002), 6 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:10,004 INFO L93 Difference]: Finished difference Result 18951 states and 28320 transitions. [2024-12-02 08:42:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:10,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 500.3333333333333) internal successors, (3002), 6 states have internal predecessors, (3002), 0 states have call successors, (0), 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 3002 [2024-12-02 08:42:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:10,011 INFO L225 Difference]: With dead ends: 18951 [2024-12-02 08:42:10,011 INFO L226 Difference]: Without dead ends: 10960 [2024-12-02 08:42:10,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3011 GetRequests, 3000 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:42:10,014 INFO L435 NwaCegarLoop]: 7590 mSDtfsCounter, 11958 mSDsluCounter, 28437 mSDsCounter, 0 mSdLazyCounter, 2444 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11958 SdHoareTripleChecker+Valid, 36027 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 2444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:10,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11958 Valid, 36027 Invalid, 2603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [159 Valid, 2444 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 08:42:10,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10960 states. [2024-12-02 08:42:10,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10960 to 6475. [2024-12-02 08:42:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6475 states, 6474 states have (on average 1.4961383997528577) internal successors, (9686), 6474 states have internal predecessors, (9686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 9686 transitions. [2024-12-02 08:42:10,076 INFO L78 Accepts]: Start accepts. Automaton has 6475 states and 9686 transitions. Word has length 3002 [2024-12-02 08:42:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:10,076 INFO L471 AbstractCegarLoop]: Abstraction has 6475 states and 9686 transitions. [2024-12-02 08:42:10,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 500.3333333333333) internal successors, (3002), 6 states have internal predecessors, (3002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 6475 states and 9686 transitions. [2024-12-02 08:42:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3004 [2024-12-02 08:42:10,114 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:10,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:10,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:42:10,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 08:42:10,315 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:10,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:10,316 INFO L85 PathProgramCache]: Analyzing trace with hash 333726415, now seen corresponding path program 1 times [2024-12-02 08:42:10,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:10,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079265247] [2024-12-02 08:42:10,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:10,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:42:20,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079265247] [2024-12-02 08:42:20,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079265247] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:20,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345230824] [2024-12-02 08:42:20,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:20,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:20,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:20,368 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:20,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:42:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:38,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 13873 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:42:38,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:42:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-12-02 08:42:39,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:42:39,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345230824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:42:39,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:42:39,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:42:39,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160491528] [2024-12-02 08:42:39,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:42:39,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:42:39,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:42:39,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:42:39,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:42:39,217 INFO L87 Difference]: Start difference. First operand 6475 states and 9686 transitions. Second operand has 6 states, 6 states have (on average 478.3333333333333) internal successors, (2870), 6 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:42:43,545 INFO L93 Difference]: Finished difference Result 16999 states and 25418 transitions. [2024-12-02 08:42:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:42:43,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 478.3333333333333) internal successors, (2870), 6 states have internal predecessors, (2870), 0 states have call successors, (0), 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 3003 [2024-12-02 08:42:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:42:43,553 INFO L225 Difference]: With dead ends: 16999 [2024-12-02 08:42:43,553 INFO L226 Difference]: Without dead ends: 11144 [2024-12-02 08:42:43,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3011 GetRequests, 3001 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:42:43,557 INFO L435 NwaCegarLoop]: 6318 mSDtfsCounter, 7291 mSDsluCounter, 25499 mSDsCounter, 0 mSdLazyCounter, 7461 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7291 SdHoareTripleChecker+Valid, 31817 SdHoareTripleChecker+Invalid, 7549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 7461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:42:43,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7291 Valid, 31817 Invalid, 7549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 7461 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 08:42:43,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11144 states. [2024-12-02 08:42:43,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11144 to 6483. [2024-12-02 08:42:43,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6483 states, 6482 states have (on average 1.495988892317186) internal successors, (9697), 6482 states have internal predecessors, (9697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:43,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6483 states to 6483 states and 9697 transitions. [2024-12-02 08:42:43,626 INFO L78 Accepts]: Start accepts. Automaton has 6483 states and 9697 transitions. Word has length 3003 [2024-12-02 08:42:43,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:42:43,627 INFO L471 AbstractCegarLoop]: Abstraction has 6483 states and 9697 transitions. [2024-12-02 08:42:43,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 478.3333333333333) internal successors, (2870), 6 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:42:43,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6483 states and 9697 transitions. [2024-12-02 08:42:43,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3005 [2024-12-02 08:42:43,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:42:43,667 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:42:43,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:42:43,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:43,867 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:42:43,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:42:43,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1669034515, now seen corresponding path program 1 times [2024-12-02 08:42:43,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:42:43,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160282395] [2024-12-02 08:42:43,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:43,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:42:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:42:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:42:52,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:42:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160282395] [2024-12-02 08:42:52,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160282395] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:42:52,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523773279] [2024-12-02 08:42:52,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:42:52,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:42:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:42:52,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:42:52,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:43:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:07,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 13876 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:43:07,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:07,653 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-12-02 08:43:07,653 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:07,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523773279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:07,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:07,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:43:07,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225963732] [2024-12-02 08:43:07,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:07,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:43:07,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:07,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:43:07,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:43:07,656 INFO L87 Difference]: Start difference. First operand 6483 states and 9697 transitions. Second operand has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:10,565 INFO L93 Difference]: Finished difference Result 17007 states and 25429 transitions. [2024-12-02 08:43:10,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:43:10,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 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 3004 [2024-12-02 08:43:10,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:10,571 INFO L225 Difference]: With dead ends: 17007 [2024-12-02 08:43:10,571 INFO L226 Difference]: Without dead ends: 11152 [2024-12-02 08:43:10,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3012 GetRequests, 3002 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:43:10,574 INFO L435 NwaCegarLoop]: 6319 mSDtfsCounter, 14227 mSDsluCounter, 19838 mSDsCounter, 0 mSdLazyCounter, 5619 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14227 SdHoareTripleChecker+Valid, 26157 SdHoareTripleChecker+Invalid, 5707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:10,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14227 Valid, 26157 Invalid, 5707 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5619 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 08:43:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11152 states. [2024-12-02 08:43:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11152 to 6499. [2024-12-02 08:43:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6499 states, 6498 states have (on average 1.4958448753462603) internal successors, (9720), 6498 states have internal predecessors, (9720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:10,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6499 states to 6499 states and 9720 transitions. [2024-12-02 08:43:10,639 INFO L78 Accepts]: Start accepts. Automaton has 6499 states and 9720 transitions. Word has length 3004 [2024-12-02 08:43:10,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:10,639 INFO L471 AbstractCegarLoop]: Abstraction has 6499 states and 9720 transitions. [2024-12-02 08:43:10,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:10,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6499 states and 9720 transitions. [2024-12-02 08:43:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3006 [2024-12-02 08:43:10,678 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:10,678 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] [2024-12-02 08:43:10,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:43:10,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-12-02 08:43:10,879 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:10,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:10,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1321021867, now seen corresponding path program 1 times [2024-12-02 08:43:10,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:10,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477581661] [2024-12-02 08:43:10,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:10,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:43:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477581661] [2024-12-02 08:43:19,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477581661] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:19,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393558518] [2024-12-02 08:43:19,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:19,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:19,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:19,885 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:19,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:43:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:37,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 13879 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:43:37,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:43:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-12-02 08:43:38,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:43:38,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393558518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:43:38,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:43:38,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:43:38,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800795831] [2024-12-02 08:43:38,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:43:38,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:43:38,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:43:38,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:43:38,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:43:38,046 INFO L87 Difference]: Start difference. First operand 6499 states and 9720 transitions. Second operand has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:42,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:43:42,464 INFO L93 Difference]: Finished difference Result 17019 states and 25446 transitions. [2024-12-02 08:43:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:43:42,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 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 3005 [2024-12-02 08:43:42,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:43:42,470 INFO L225 Difference]: With dead ends: 17019 [2024-12-02 08:43:42,470 INFO L226 Difference]: Without dead ends: 11164 [2024-12-02 08:43:42,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3013 GetRequests, 3003 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:43:42,473 INFO L435 NwaCegarLoop]: 6320 mSDtfsCounter, 7297 mSDsluCounter, 25501 mSDsCounter, 0 mSdLazyCounter, 7457 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7297 SdHoareTripleChecker+Valid, 31821 SdHoareTripleChecker+Invalid, 7545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 7457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:43:42,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7297 Valid, 31821 Invalid, 7545 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 7457 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 08:43:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2024-12-02 08:43:42,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 6523. [2024-12-02 08:43:42,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 6522 states have (on average 1.495706838393131) internal successors, (9755), 6522 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:42,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 9755 transitions. [2024-12-02 08:43:42,539 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 9755 transitions. Word has length 3005 [2024-12-02 08:43:42,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:43:42,539 INFO L471 AbstractCegarLoop]: Abstraction has 6523 states and 9755 transitions. [2024-12-02 08:43:42,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:43:42,540 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 9755 transitions. [2024-12-02 08:43:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3007 [2024-12-02 08:43:42,587 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:43:42,588 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:43:42,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 08:43:42,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-12-02 08:43:42,788 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:43:42,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:43:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash -960269609, now seen corresponding path program 1 times [2024-12-02 08:43:42,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:43:42,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547764801] [2024-12-02 08:43:42,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:42,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:43:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:43:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:43:51,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:43:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547764801] [2024-12-02 08:43:51,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547764801] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:43:51,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284075112] [2024-12-02 08:43:51,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:43:51,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:43:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:43:51,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:43:51,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:44:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:08,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 13882 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:44:08,403 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:08,767 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-12-02 08:44:08,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:08,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284075112] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:08,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:08,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:44:08,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697862784] [2024-12-02 08:44:08,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:08,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:08,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:08,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:44:08,772 INFO L87 Difference]: Start difference. First operand 6523 states and 9755 transitions. Second operand has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:13,456 INFO L93 Difference]: Finished difference Result 17033 states and 25464 transitions. [2024-12-02 08:44:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 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 3006 [2024-12-02 08:44:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:13,466 INFO L225 Difference]: With dead ends: 17033 [2024-12-02 08:44:13,466 INFO L226 Difference]: Without dead ends: 11148 [2024-12-02 08:44:13,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3014 GetRequests, 3004 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:44:13,471 INFO L435 NwaCegarLoop]: 6321 mSDtfsCounter, 7289 mSDsluCounter, 25502 mSDsCounter, 0 mSdLazyCounter, 7455 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7289 SdHoareTripleChecker+Valid, 31823 SdHoareTripleChecker+Invalid, 7543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 7455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:13,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7289 Valid, 31823 Invalid, 7543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 7455 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 08:44:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11148 states. [2024-12-02 08:44:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11148 to 6523. [2024-12-02 08:44:13,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 6522 states have (on average 1.4955535111928857) internal successors, (9754), 6522 states have internal predecessors, (9754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:13,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 9754 transitions. [2024-12-02 08:44:13,572 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 9754 transitions. Word has length 3006 [2024-12-02 08:44:13,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:13,573 INFO L471 AbstractCegarLoop]: Abstraction has 6523 states and 9754 transitions. [2024-12-02 08:44:13,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 479.8333333333333) internal successors, (2879), 6 states have internal predecessors, (2879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 9754 transitions. [2024-12-02 08:44:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3008 [2024-12-02 08:44:13,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:13,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:44:13,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 08:44:13,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-12-02 08:44:13,869 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:13,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:13,870 INFO L85 PathProgramCache]: Analyzing trace with hash -328939129, now seen corresponding path program 1 times [2024-12-02 08:44:13,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:13,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308897914] [2024-12-02 08:44:13,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:44:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308897914] [2024-12-02 08:44:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308897914] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585295836] [2024-12-02 08:44:23,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:23,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:23,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:23,502 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 08:44:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:39,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 13885 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:44:39,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:44:40,142 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 08:44:40,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:44:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585295836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:44:40,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:44:40,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:44:40,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005212620] [2024-12-02 08:44:40,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:44:40,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:44:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:44:40,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:44:40,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:44:40,145 INFO L87 Difference]: Start difference. First operand 6523 states and 9754 transitions. Second operand has 6 states, 6 states have (on average 481.1666666666667) internal successors, (2887), 6 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:44:43,201 INFO L93 Difference]: Finished difference Result 17025 states and 25452 transitions. [2024-12-02 08:44:43,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:44:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 481.1666666666667) internal successors, (2887), 6 states have internal predecessors, (2887), 0 states have call successors, (0), 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 3007 [2024-12-02 08:44:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:44:43,209 INFO L225 Difference]: With dead ends: 17025 [2024-12-02 08:44:43,209 INFO L226 Difference]: Without dead ends: 11156 [2024-12-02 08:44:43,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3015 GetRequests, 3005 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:44:43,214 INFO L435 NwaCegarLoop]: 6322 mSDtfsCounter, 14221 mSDsluCounter, 19841 mSDsCounter, 0 mSdLazyCounter, 5613 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14221 SdHoareTripleChecker+Valid, 26163 SdHoareTripleChecker+Invalid, 5701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 5613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:44:43,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14221 Valid, 26163 Invalid, 5701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 5613 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 08:44:43,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11156 states. [2024-12-02 08:44:43,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11156 to 6523. [2024-12-02 08:44:43,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 6522 states have (on average 1.4954001839926403) internal successors, (9753), 6522 states have internal predecessors, (9753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 9753 transitions. [2024-12-02 08:44:43,280 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 9753 transitions. Word has length 3007 [2024-12-02 08:44:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:44:43,280 INFO L471 AbstractCegarLoop]: Abstraction has 6523 states and 9753 transitions. [2024-12-02 08:44:43,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 481.1666666666667) internal successors, (2887), 6 states have internal predecessors, (2887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:44:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 9753 transitions. [2024-12-02 08:44:43,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3009 [2024-12-02 08:44:43,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:44:43,320 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:44:43,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 08:44:43,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:43,521 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:44:43,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:44:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash 236357655, now seen corresponding path program 1 times [2024-12-02 08:44:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:44:43,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623033772] [2024-12-02 08:44:43,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:43,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:44:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:44:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 156 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:44:53,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:44:53,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623033772] [2024-12-02 08:44:53,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623033772] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:44:53,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551337546] [2024-12-02 08:44:53,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:44:53,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:44:53,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:44:53,334 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:44:53,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 08:45:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:45:12,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 13888 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:45:12,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:45:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-12-02 08:45:13,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:45:13,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551337546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:45:13,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:45:13,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-12-02 08:45:13,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885789616] [2024-12-02 08:45:13,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:45:13,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:45:13,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:45:13,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:45:13,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:45:13,124 INFO L87 Difference]: Start difference. First operand 6523 states and 9753 transitions. Second operand has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:45:17,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:45:17,505 INFO L93 Difference]: Finished difference Result 17021 states and 25445 transitions. [2024-12-02 08:45:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:45:17,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 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 3008 [2024-12-02 08:45:17,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:45:17,511 INFO L225 Difference]: With dead ends: 17021 [2024-12-02 08:45:17,511 INFO L226 Difference]: Without dead ends: 11160 [2024-12-02 08:45:17,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3016 GetRequests, 3006 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:45:17,513 INFO L435 NwaCegarLoop]: 6323 mSDtfsCounter, 7290 mSDsluCounter, 25504 mSDsCounter, 0 mSdLazyCounter, 7451 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7290 SdHoareTripleChecker+Valid, 31827 SdHoareTripleChecker+Invalid, 7539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 7451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:45:17,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7290 Valid, 31827 Invalid, 7539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 7451 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 08:45:17,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11160 states. [2024-12-02 08:45:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11160 to 6523. [2024-12-02 08:45:17,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6523 states, 6522 states have (on average 1.4952468567923949) internal successors, (9752), 6522 states have internal predecessors, (9752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:45:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6523 states to 6523 states and 9752 transitions. [2024-12-02 08:45:17,569 INFO L78 Accepts]: Start accepts. Automaton has 6523 states and 9752 transitions. Word has length 3008 [2024-12-02 08:45:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:45:17,569 INFO L471 AbstractCegarLoop]: Abstraction has 6523 states and 9752 transitions. [2024-12-02 08:45:17,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 482.0) internal successors, (2892), 6 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:45:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 6523 states and 9752 transitions. [2024-12-02 08:45:17,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3010 [2024-12-02 08:45:17,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:45:17,610 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] [2024-12-02 08:45:17,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 08:45:17,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f473125-eabc-4f57-8aba-93f9ee560544/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:45:17,811 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:45:17,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:45:17,812 INFO L85 PathProgramCache]: Analyzing trace with hash -720097735, now seen corresponding path program 1 times [2024-12-02 08:45:17,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:45:17,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164267483] [2024-12-02 08:45:17,812 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:45:17,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms