./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/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_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e29377f4baeda9218a5143db9b1b65013d04e81e8a7c4a939c9d7d6e34d7d24c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:50:01,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:50:01,717 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:50:01,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:50:01,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:50:01,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:50:01,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:50:01,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:50:01,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:50:01,742 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:50:01,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:50:01,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:50:01,743 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:50:01,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:50:01,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:50:01,744 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:01,744 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:50:01,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:01,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:50:01,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:50:01,745 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_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e29377f4baeda9218a5143db9b1b65013d04e81e8a7c4a939c9d7d6e34d7d24c [2024-12-02 11:50:01,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:50:01,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:50:01,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:50:01,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:50:01,983 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:50:01,984 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c [2024-12-02 11:50:04,675 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/data/f68e55592/975d129cb31a4795a2282e05ba0943d1/FLAG6ea0835e6 [2024-12-02 11:50:05,098 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:50:05,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c [2024-12-02 11:50:05,126 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/data/f68e55592/975d129cb31a4795a2282e05ba0943d1/FLAG6ea0835e6 [2024-12-02 11:50:05,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/data/f68e55592/975d129cb31a4795a2282e05ba0943d1 [2024-12-02 11:50:05,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:50:05,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:50:05,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:50:05,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:50:05,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:50:05,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:50:05" (1/1) ... [2024-12-02 11:50:05,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a2707c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:05, skipping insertion in model container [2024-12-02 11:50:05,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:50:05" (1/1) ... [2024-12-02 11:50:05,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:50:05,650 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_c65cf067-72f8-4312-a5e3-c8f3748d8cda/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c[20426,20439] [2024-12-02 11:50:05,696 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_c65cf067-72f8-4312-a5e3-c8f3748d8cda/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c[27487,27500] [2024-12-02 11:50:06,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:50:06,297 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:50:06,335 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c[20426,20439] [2024-12-02 11:50:06,345 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_c65cf067-72f8-4312-a5e3-c8f3748d8cda/sv-benchmarks/c/combinations/pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c[27487,27500] [2024-12-02 11:50:06,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:50:06,794 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:50:06,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06 WrapperNode [2024-12-02 11:50:06,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:50:06,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:50:06,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:50:06,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:50:06,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:06,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,150 INFO L138 Inliner]: procedures = 38, calls = 24, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5219 [2024-12-02 11:50:07,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:50:07,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:50:07,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:50:07,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:50:07,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,384 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:50:07,384 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,529 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:50:07,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:50:07,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:50:07,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:50:07,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (1/1) ... [2024-12-02 11:50:07,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:50:07,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:50:07,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:50:07,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:50:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:50:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:50:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:50:07,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:50:07,852 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:50:07,853 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:50:12,190 INFO L? ?]: Removed 754 outVars from TransFormulas that were not future-live. [2024-12-02 11:50:12,190 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:50:12,218 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:50:12,218 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 11:50:12,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:50:12 BoogieIcfgContainer [2024-12-02 11:50:12,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:50:12,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:50:12,221 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:50:12,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:50:12,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:50:05" (1/3) ... [2024-12-02 11:50:12,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d81117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:50:12, skipping insertion in model container [2024-12-02 11:50:12,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:50:06" (2/3) ... [2024-12-02 11:50:12,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d81117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:50:12, skipping insertion in model container [2024-12-02 11:50:12,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:50:12" (3/3) ... [2024-12-02 11:50:12,228 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c [2024-12-02 11:50:12,241 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:50:12,243 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.7.ufo.BOUNDED-14.pals+Problem12_label04.c that has 1 procedures, 931 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 11:50:12,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:50:12,315 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;@36568a5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:50:12,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:50:12,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 11:50:12,327 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:12,327 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] [2024-12-02 11:50:12,328 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:12,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:12,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1979701138, now seen corresponding path program 1 times [2024-12-02 11:50:12,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741690648] [2024-12-02 11:50:12,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:12,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:12,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741690648] [2024-12-02 11:50:12,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741690648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:12,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:12,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:50:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524886940] [2024-12-02 11:50:12,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:12,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:50:12,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:12,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:50:12,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:50:12,567 INFO L87 Difference]: Start difference. First operand has 931 states, 928 states have (on average 1.9030172413793103) internal successors, (1766), 930 states have internal predecessors, (1766), 0 states have call successors, (0), 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 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:12,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:12,632 INFO L93 Difference]: Finished difference Result 1806 states and 3424 transitions. [2024-12-02 11:50:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:50:12,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-12-02 11:50:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:12,647 INFO L225 Difference]: With dead ends: 1806 [2024-12-02 11:50:12,648 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 11:50:12,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:50:12,655 INFO L435 NwaCegarLoop]: 1700 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:12,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:12,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 11:50:12,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-12-02 11:50:12,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8922363847045192) internal successors, (1633), 864 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:12,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1633 transitions. [2024-12-02 11:50:12,718 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1633 transitions. Word has length 29 [2024-12-02 11:50:12,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:12,719 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1633 transitions. [2024-12-02 11:50:12,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:12,719 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1633 transitions. [2024-12-02 11:50:12,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-02 11:50:12,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:12,720 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] [2024-12-02 11:50:12,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:50:12,721 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:12,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:12,721 INFO L85 PathProgramCache]: Analyzing trace with hash 509827824, now seen corresponding path program 1 times [2024-12-02 11:50:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646328026] [2024-12-02 11:50:12,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:12,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:12,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646328026] [2024-12-02 11:50:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646328026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:50:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680788456] [2024-12-02 11:50:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:12,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:50:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:12,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:50:12,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:50:12,944 INFO L87 Difference]: Start difference. First operand 865 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:13,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:13,063 INFO L93 Difference]: Finished difference Result 924 states and 1725 transitions. [2024-12-02 11:50:13,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:50:13,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 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 29 [2024-12-02 11:50:13,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:13,067 INFO L225 Difference]: With dead ends: 924 [2024-12-02 11:50:13,068 INFO L226 Difference]: Without dead ends: 865 [2024-12-02 11:50:13,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:50:13,069 INFO L435 NwaCegarLoop]: 1631 mSDtfsCounter, 0 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6469 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:13,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6469 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:13,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-12-02 11:50:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 865. [2024-12-02 11:50:13,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 863 states have (on average 1.8342989571263035) internal successors, (1583), 864 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1583 transitions. [2024-12-02 11:50:13,088 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1583 transitions. Word has length 29 [2024-12-02 11:50:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:13,088 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1583 transitions. [2024-12-02 11:50:13,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1583 transitions. [2024-12-02 11:50:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 11:50:13,089 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:13,090 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] [2024-12-02 11:50:13,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:50:13,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:13,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:13,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1354022551, now seen corresponding path program 1 times [2024-12-02 11:50:13,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:13,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574846253] [2024-12-02 11:50:13,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:13,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:13,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:13,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574846253] [2024-12-02 11:50:13,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574846253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:13,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:13,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:50:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660253472] [2024-12-02 11:50:13,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:13,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:13,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:13,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:13,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:13,185 INFO L87 Difference]: Start difference. First operand 865 states and 1583 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:16,590 INFO L93 Difference]: Finished difference Result 2369 states and 4456 transitions. [2024-12-02 11:50:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-12-02 11:50:16,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:16,597 INFO L225 Difference]: With dead ends: 2369 [2024-12-02 11:50:16,597 INFO L226 Difference]: Without dead ends: 1616 [2024-12-02 11:50:16,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:16,599 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 884 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2261 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:16,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 619 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2261 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 11:50:16,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-12-02 11:50:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2024-12-02 11:50:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1614 states have (on average 1.587360594795539) internal successors, (2562), 1615 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:16,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2562 transitions. [2024-12-02 11:50:16,628 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2562 transitions. Word has length 61 [2024-12-02 11:50:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:16,628 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 2562 transitions. [2024-12-02 11:50:16,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:16,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2562 transitions. [2024-12-02 11:50:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 11:50:16,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:16,631 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] [2024-12-02 11:50:16,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:50:16,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:16,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:16,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1132287183, now seen corresponding path program 1 times [2024-12-02 11:50:16,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:16,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552319567] [2024-12-02 11:50:16,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:16,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:16,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:16,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:16,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552319567] [2024-12-02 11:50:16,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552319567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:16,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:16,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:16,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49498856] [2024-12-02 11:50:16,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:16,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:16,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:16,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:16,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:16,931 INFO L87 Difference]: Start difference. First operand 1616 states and 2562 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:17,406 INFO L93 Difference]: Finished difference Result 2386 states and 3794 transitions. [2024-12-02 11:50:17,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:50:17,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-02 11:50:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:17,413 INFO L225 Difference]: With dead ends: 2386 [2024-12-02 11:50:17,413 INFO L226 Difference]: Without dead ends: 2331 [2024-12-02 11:50:17,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:50:17,415 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 11518 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11518 SdHoareTripleChecker+Valid, 4896 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:17,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11518 Valid, 4896 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:50:17,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2024-12-02 11:50:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1669. [2024-12-02 11:50:17,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1667 states have (on average 1.5878824235152968) internal successors, (2647), 1668 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2647 transitions. [2024-12-02 11:50:17,443 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2647 transitions. Word has length 78 [2024-12-02 11:50:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:17,444 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2647 transitions. [2024-12-02 11:50:17,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 9 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2647 transitions. [2024-12-02 11:50:17,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:50:17,445 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:17,445 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] [2024-12-02 11:50:17,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:50:17,446 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:17,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:17,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1378018881, now seen corresponding path program 1 times [2024-12-02 11:50:17,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:17,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628338735] [2024-12-02 11:50:17,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:17,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:17,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:17,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:17,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628338735] [2024-12-02 11:50:17,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628338735] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:17,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365059301] [2024-12-02 11:50:17,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:17,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:17,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:17,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:17,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:17,553 INFO L87 Difference]: Start difference. First operand 1669 states and 2647 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:17,578 INFO L93 Difference]: Finished difference Result 1874 states and 2974 transitions. [2024-12-02 11:50:17,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:17,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 11:50:17,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:17,583 INFO L225 Difference]: With dead ends: 1874 [2024-12-02 11:50:17,583 INFO L226 Difference]: Without dead ends: 1766 [2024-12-02 11:50:17,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:17,584 INFO L435 NwaCegarLoop]: 1581 mSDtfsCounter, 1498 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:17,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1498 Valid, 1664 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:17,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-12-02 11:50:17,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-12-02 11:50:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.5874006810442678) internal successors, (2797), 1763 states have internal predecessors, (2797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2797 transitions. [2024-12-02 11:50:17,610 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2797 transitions. Word has length 80 [2024-12-02 11:50:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:17,610 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2797 transitions. [2024-12-02 11:50:17,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:17,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2797 transitions. [2024-12-02 11:50:17,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 11:50:17,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:17,611 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:17,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:50:17,611 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:17,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1444512393, now seen corresponding path program 1 times [2024-12-02 11:50:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:17,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499830320] [2024-12-02 11:50:17,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:17,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:18,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:18,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499830320] [2024-12-02 11:50:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499830320] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:18,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:18,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:18,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046366343] [2024-12-02 11:50:18,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:18,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:18,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:18,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:18,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:18,083 INFO L87 Difference]: Start difference. First operand 1764 states and 2797 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:18,395 INFO L93 Difference]: Finished difference Result 1969 states and 3121 transitions. [2024-12-02 11:50:18,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:18,396 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-12-02 11:50:18,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:18,402 INFO L225 Difference]: With dead ends: 1969 [2024-12-02 11:50:18,403 INFO L226 Difference]: Without dead ends: 1766 [2024-12-02 11:50:18,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:50:18,404 INFO L435 NwaCegarLoop]: 1574 mSDtfsCounter, 9054 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9054 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:18,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9054 Valid, 2084 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:18,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-12-02 11:50:18,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1764. [2024-12-02 11:50:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1762 states have (on average 1.5862656072644723) internal successors, (2795), 1763 states have internal predecessors, (2795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2795 transitions. [2024-12-02 11:50:18,441 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2795 transitions. Word has length 80 [2024-12-02 11:50:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:18,441 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2795 transitions. [2024-12-02 11:50:18,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 9 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2795 transitions. [2024-12-02 11:50:18,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 11:50:18,442 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:18,443 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] [2024-12-02 11:50:18,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:50:18,443 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:18,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:18,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1415488311, now seen corresponding path program 1 times [2024-12-02 11:50:18,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:18,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415501743] [2024-12-02 11:50:18,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:18,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:18,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:18,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415501743] [2024-12-02 11:50:18,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415501743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:18,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:18,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:50:18,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664864106] [2024-12-02 11:50:18,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:18,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:50:18,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:18,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:50:18,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:50:18,785 INFO L87 Difference]: Start difference. First operand 1764 states and 2795 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:18,853 INFO L93 Difference]: Finished difference Result 1772 states and 2804 transitions. [2024-12-02 11:50:18,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:50:18,853 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 11:50:18,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:18,859 INFO L225 Difference]: With dead ends: 1772 [2024-12-02 11:50:18,859 INFO L226 Difference]: Without dead ends: 1770 [2024-12-02 11:50:18,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:50:18,861 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 0 mSDsluCounter, 9449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11026 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:18,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11026 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:18,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-12-02 11:50:18,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2024-12-02 11:50:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1768 states have (on average 1.583710407239819) internal successors, (2800), 1769 states have internal predecessors, (2800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2800 transitions. [2024-12-02 11:50:18,895 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2800 transitions. Word has length 81 [2024-12-02 11:50:18,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:18,895 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2800 transitions. [2024-12-02 11:50:18,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2800 transitions. [2024-12-02 11:50:18,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:18,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:18,897 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] [2024-12-02 11:50:18,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:50:18,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:18,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash -801072599, now seen corresponding path program 1 times [2024-12-02 11:50:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173946869] [2024-12-02 11:50:18,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:18,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:18,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173946869] [2024-12-02 11:50:18,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173946869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:18,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:18,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:18,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949357546] [2024-12-02 11:50:18,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:18,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:18,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:18,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:18,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:18,977 INFO L87 Difference]: Start difference. First operand 1770 states and 2800 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:19,005 INFO L93 Difference]: Finished difference Result 1993 states and 3146 transitions. [2024-12-02 11:50:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:19,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:19,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:19,011 INFO L225 Difference]: With dead ends: 1993 [2024-12-02 11:50:19,011 INFO L226 Difference]: Without dead ends: 1879 [2024-12-02 11:50:19,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,012 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1516 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:19,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1744 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2024-12-02 11:50:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1877. [2024-12-02 11:50:19,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1875 states have (on average 1.5808) internal successors, (2964), 1876 states have internal predecessors, (2964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2964 transitions. [2024-12-02 11:50:19,039 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2964 transitions. Word has length 82 [2024-12-02 11:50:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:19,039 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2964 transitions. [2024-12-02 11:50:19,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2964 transitions. [2024-12-02 11:50:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:19,039 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:19,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:19,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:50:19,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:19,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1140996905, now seen corresponding path program 1 times [2024-12-02 11:50:19,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:19,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339041952] [2024-12-02 11:50:19,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:19,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:19,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:19,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339041952] [2024-12-02 11:50:19,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339041952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:19,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:19,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:19,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551936885] [2024-12-02 11:50:19,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:19,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:19,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:19,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:19,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,131 INFO L87 Difference]: Start difference. First operand 1877 states and 2964 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:19,167 INFO L93 Difference]: Finished difference Result 2479 states and 3896 transitions. [2024-12-02 11:50:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:19,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:19,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:19,175 INFO L225 Difference]: With dead ends: 2479 [2024-12-02 11:50:19,175 INFO L226 Difference]: Without dead ends: 2166 [2024-12-02 11:50:19,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,177 INFO L435 NwaCegarLoop]: 1657 mSDtfsCounter, 1514 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:19,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:19,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-12-02 11:50:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2164. [2024-12-02 11:50:19,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2164 states, 2162 states have (on average 1.5735430157261794) internal successors, (3402), 2163 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2164 states to 2164 states and 3402 transitions. [2024-12-02 11:50:19,226 INFO L78 Accepts]: Start accepts. Automaton has 2164 states and 3402 transitions. Word has length 82 [2024-12-02 11:50:19,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:19,227 INFO L471 AbstractCegarLoop]: Abstraction has 2164 states and 3402 transitions. [2024-12-02 11:50:19,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2164 states and 3402 transitions. [2024-12-02 11:50:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:19,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:19,228 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] [2024-12-02 11:50:19,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:50:19,228 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:19,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:19,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1567767849, now seen corresponding path program 1 times [2024-12-02 11:50:19,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:19,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919655026] [2024-12-02 11:50:19,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:19,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:19,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:19,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:19,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919655026] [2024-12-02 11:50:19,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919655026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:19,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:19,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:19,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751326469] [2024-12-02 11:50:19,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:19,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:19,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:19,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:19,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,305 INFO L87 Difference]: Start difference. First operand 2164 states and 3402 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:19,349 INFO L93 Difference]: Finished difference Result 3316 states and 5168 transitions. [2024-12-02 11:50:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:19,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:19,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:19,359 INFO L225 Difference]: With dead ends: 3316 [2024-12-02 11:50:19,359 INFO L226 Difference]: Without dead ends: 2716 [2024-12-02 11:50:19,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,361 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 1510 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:19,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1746 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:19,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2024-12-02 11:50:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2714. [2024-12-02 11:50:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2712 states have (on average 1.5597345132743363) internal successors, (4230), 2713 states have internal predecessors, (4230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 4230 transitions. [2024-12-02 11:50:19,428 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 4230 transitions. Word has length 82 [2024-12-02 11:50:19,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:19,428 INFO L471 AbstractCegarLoop]: Abstraction has 2714 states and 4230 transitions. [2024-12-02 11:50:19,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 4230 transitions. [2024-12-02 11:50:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:19,429 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:19,429 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] [2024-12-02 11:50:19,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:50:19,429 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:19,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:19,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1488937431, now seen corresponding path program 1 times [2024-12-02 11:50:19,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:19,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901834959] [2024-12-02 11:50:19,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:19,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:19,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:19,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:19,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901834959] [2024-12-02 11:50:19,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901834959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:19,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:19,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:19,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025115846] [2024-12-02 11:50:19,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:19,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:19,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:19,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,513 INFO L87 Difference]: Start difference. First operand 2714 states and 4230 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:19,565 INFO L93 Difference]: Finished difference Result 4918 states and 7568 transitions. [2024-12-02 11:50:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:19,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:19,579 INFO L225 Difference]: With dead ends: 4918 [2024-12-02 11:50:19,579 INFO L226 Difference]: Without dead ends: 3768 [2024-12-02 11:50:19,581 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,581 INFO L435 NwaCegarLoop]: 1643 mSDtfsCounter, 1508 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:19,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1748 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2024-12-02 11:50:19,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3766. [2024-12-02 11:50:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 1.5382571732199788) internal successors, (5790), 3765 states have internal predecessors, (5790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 5790 transitions. [2024-12-02 11:50:19,670 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 5790 transitions. Word has length 82 [2024-12-02 11:50:19,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:19,671 INFO L471 AbstractCegarLoop]: Abstraction has 3766 states and 5790 transitions. [2024-12-02 11:50:19,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 5790 transitions. [2024-12-02 11:50:19,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:19,672 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:19,672 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] [2024-12-02 11:50:19,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:50:19,672 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:19,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:19,673 INFO L85 PathProgramCache]: Analyzing trace with hash 590561065, now seen corresponding path program 1 times [2024-12-02 11:50:19,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:19,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962843943] [2024-12-02 11:50:19,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:19,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:19,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:19,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962843943] [2024-12-02 11:50:19,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962843943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:19,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:19,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:19,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932621811] [2024-12-02 11:50:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:19,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:19,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:19,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:19,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,751 INFO L87 Difference]: Start difference. First operand 3766 states and 5790 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:19,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:19,869 INFO L93 Difference]: Finished difference Result 7978 states and 12080 transitions. [2024-12-02 11:50:19,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:19,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:19,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:19,899 INFO L225 Difference]: With dead ends: 7978 [2024-12-02 11:50:19,899 INFO L226 Difference]: Without dead ends: 5776 [2024-12-02 11:50:19,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:19,903 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 1506 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:19,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1750 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5776 states. [2024-12-02 11:50:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5776 to 5774. [2024-12-02 11:50:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5772 states have (on average 1.5103950103950103) internal successors, (8718), 5773 states have internal predecessors, (8718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 8718 transitions. [2024-12-02 11:50:20,060 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 8718 transitions. Word has length 82 [2024-12-02 11:50:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:20,061 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 8718 transitions. [2024-12-02 11:50:20,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 8718 transitions. [2024-12-02 11:50:20,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:20,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:20,062 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] [2024-12-02 11:50:20,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:50:20,062 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:20,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:20,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1923473367, now seen corresponding path program 1 times [2024-12-02 11:50:20,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:20,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626009588] [2024-12-02 11:50:20,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:20,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:20,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:20,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626009588] [2024-12-02 11:50:20,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626009588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:20,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:20,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:20,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574807182] [2024-12-02 11:50:20,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:20,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:20,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:20,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:20,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:20,157 INFO L87 Difference]: Start difference. First operand 5774 states and 8718 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:20,268 INFO L93 Difference]: Finished difference Result 13810 states and 20528 transitions. [2024-12-02 11:50:20,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:20,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:20,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:20,284 INFO L225 Difference]: With dead ends: 13810 [2024-12-02 11:50:20,284 INFO L226 Difference]: Without dead ends: 9600 [2024-12-02 11:50:20,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:20,289 INFO L435 NwaCegarLoop]: 1639 mSDtfsCounter, 1504 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:20,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:20,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9600 states. [2024-12-02 11:50:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9600 to 9598. [2024-12-02 11:50:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9598 states, 9596 states have (on average 1.4787411421425594) internal successors, (14190), 9597 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9598 states to 9598 states and 14190 transitions. [2024-12-02 11:50:20,484 INFO L78 Accepts]: Start accepts. Automaton has 9598 states and 14190 transitions. Word has length 82 [2024-12-02 11:50:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:20,484 INFO L471 AbstractCegarLoop]: Abstraction has 9598 states and 14190 transitions. [2024-12-02 11:50:20,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 9598 states and 14190 transitions. [2024-12-02 11:50:20,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 11:50:20,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:20,485 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] [2024-12-02 11:50:20,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:50:20,485 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:20,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:20,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1303911465, now seen corresponding path program 1 times [2024-12-02 11:50:20,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:20,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323229753] [2024-12-02 11:50:20,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:20,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:50:20,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:20,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323229753] [2024-12-02 11:50:20,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323229753] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:20,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:20,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:50:20,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275947258] [2024-12-02 11:50:20,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:20,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:50:20,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:20,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:50:20,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:20,535 INFO L87 Difference]: Start difference. First operand 9598 states and 14190 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:20,697 INFO L93 Difference]: Finished difference Result 24898 states and 36272 transitions. [2024-12-02 11:50:20,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:50:20,698 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 11:50:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:20,722 INFO L225 Difference]: With dead ends: 24898 [2024-12-02 11:50:20,722 INFO L226 Difference]: Without dead ends: 16864 [2024-12-02 11:50:20,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:50:20,730 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1512 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:20,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1752 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:50:20,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16864 states. [2024-12-02 11:50:20,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16864 to 16862. [2024-12-02 11:50:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16862 states, 16860 states have (on average 1.4451957295373665) internal successors, (24366), 16861 states have internal predecessors, (24366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16862 states to 16862 states and 24366 transitions. [2024-12-02 11:50:21,029 INFO L78 Accepts]: Start accepts. Automaton has 16862 states and 24366 transitions. Word has length 82 [2024-12-02 11:50:21,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:21,029 INFO L471 AbstractCegarLoop]: Abstraction has 16862 states and 24366 transitions. [2024-12-02 11:50:21,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 16862 states and 24366 transitions. [2024-12-02 11:50:21,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:21,059 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:21,060 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:21,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:50:21,060 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:21,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:21,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1829887773, now seen corresponding path program 1 times [2024-12-02 11:50:21,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:21,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457615479] [2024-12-02 11:50:21,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:21,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:21,429 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 11:50:21,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457615479] [2024-12-02 11:50:21,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457615479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:21,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:21,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:21,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338529449] [2024-12-02 11:50:21,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:21,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:21,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:21,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:21,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:21,432 INFO L87 Difference]: Start difference. First operand 16862 states and 24366 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:23,010 INFO L93 Difference]: Finished difference Result 122542 states and 175478 transitions. [2024-12-02 11:50:23,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:23,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 11:50:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:23,227 INFO L225 Difference]: With dead ends: 122542 [2024-12-02 11:50:23,227 INFO L226 Difference]: Without dead ends: 111788 [2024-12-02 11:50:23,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:23,243 INFO L435 NwaCegarLoop]: 1670 mSDtfsCounter, 9875 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9875 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:23,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9875 Valid, 4558 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111788 states. [2024-12-02 11:50:24,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111788 to 29918. [2024-12-02 11:50:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29918 states, 29916 states have (on average 1.4327450193876186) internal successors, (42862), 29917 states have internal predecessors, (42862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:24,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29918 states to 29918 states and 42862 transitions. [2024-12-02 11:50:24,447 INFO L78 Accepts]: Start accepts. Automaton has 29918 states and 42862 transitions. Word has length 106 [2024-12-02 11:50:24,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:24,447 INFO L471 AbstractCegarLoop]: Abstraction has 29918 states and 42862 transitions. [2024-12-02 11:50:24,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:24,447 INFO L276 IsEmpty]: Start isEmpty. Operand 29918 states and 42862 transitions. [2024-12-02 11:50:24,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:24,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:24,452 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:24,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:50:24,452 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:24,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:24,452 INFO L85 PathProgramCache]: Analyzing trace with hash 112181731, now seen corresponding path program 1 times [2024-12-02 11:50:24,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:24,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18064003] [2024-12-02 11:50:24,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:24,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:50:24,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:24,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18064003] [2024-12-02 11:50:24,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18064003] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:24,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:24,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:24,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291659949] [2024-12-02 11:50:24,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:24,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:24,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:24,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:24,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:24,717 INFO L87 Difference]: Start difference. First operand 29918 states and 42862 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:26,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:26,852 INFO L93 Difference]: Finished difference Result 137838 states and 197238 transitions. [2024-12-02 11:50:26,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:26,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 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 106 [2024-12-02 11:50:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:26,983 INFO L225 Difference]: With dead ends: 137838 [2024-12-02 11:50:26,983 INFO L226 Difference]: Without dead ends: 122540 [2024-12-02 11:50:27,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:27,006 INFO L435 NwaCegarLoop]: 1669 mSDtfsCounter, 9877 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9877 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:27,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9877 Valid, 4508 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122540 states. [2024-12-02 11:50:28,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122540 to 50590. [2024-12-02 11:50:28,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50590 states, 50588 states have (on average 1.4254368624970348) internal successors, (72110), 50589 states have internal predecessors, (72110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50590 states to 50590 states and 72110 transitions. [2024-12-02 11:50:28,820 INFO L78 Accepts]: Start accepts. Automaton has 50590 states and 72110 transitions. Word has length 106 [2024-12-02 11:50:28,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:28,820 INFO L471 AbstractCegarLoop]: Abstraction has 50590 states and 72110 transitions. [2024-12-02 11:50:28,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 50590 states and 72110 transitions. [2024-12-02 11:50:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:28,825 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:28,825 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:28,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:50:28,825 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:28,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash 538952675, now seen corresponding path program 1 times [2024-12-02 11:50:28,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:28,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309649916] [2024-12-02 11:50:28,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:50:28,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:28,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309649916] [2024-12-02 11:50:28,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309649916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:28,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:28,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:28,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908081029] [2024-12-02 11:50:28,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:28,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:28,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:28,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:28,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:28,996 INFO L87 Difference]: Start difference. First operand 50590 states and 72110 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:31,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:31,667 INFO L93 Difference]: Finished difference Result 153134 states and 218934 transitions. [2024-12-02 11:50:31,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:31,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 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 106 [2024-12-02 11:50:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:31,797 INFO L225 Difference]: With dead ends: 153134 [2024-12-02 11:50:31,797 INFO L226 Difference]: Without dead ends: 137836 [2024-12-02 11:50:31,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:31,820 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 9921 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9921 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:31,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9921 Valid, 4525 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:50:31,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137836 states. [2024-12-02 11:50:33,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137836 to 65886. [2024-12-02 11:50:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65886 states, 65884 states have (on average 1.423805476291664) internal successors, (93806), 65885 states have internal predecessors, (93806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:33,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65886 states to 65886 states and 93806 transitions. [2024-12-02 11:50:33,863 INFO L78 Accepts]: Start accepts. Automaton has 65886 states and 93806 transitions. Word has length 106 [2024-12-02 11:50:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:33,863 INFO L471 AbstractCegarLoop]: Abstraction has 65886 states and 93806 transitions. [2024-12-02 11:50:33,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 65886 states and 93806 transitions. [2024-12-02 11:50:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:33,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:33,870 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:33,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:50:33,870 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:33,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:33,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1777214691, now seen corresponding path program 1 times [2024-12-02 11:50:33,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:33,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558657022] [2024-12-02 11:50:33,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:33,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 11:50:34,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558657022] [2024-12-02 11:50:34,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558657022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:34,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:34,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:34,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367197817] [2024-12-02 11:50:34,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:34,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:34,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:34,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:34,096 INFO L87 Difference]: Start difference. First operand 65886 states and 93806 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:37,858 INFO L93 Difference]: Finished difference Result 168430 states and 240630 transitions. [2024-12-02 11:50:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:37,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 11:50:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:38,028 INFO L225 Difference]: With dead ends: 168430 [2024-12-02 11:50:38,028 INFO L226 Difference]: Without dead ends: 153132 [2024-12-02 11:50:38,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:38,056 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 9975 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9975 SdHoareTripleChecker+Valid, 4468 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:38,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9975 Valid, 4468 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:38,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153132 states. [2024-12-02 11:50:40,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153132 to 81182. [2024-12-02 11:50:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81182 states, 81180 states have (on average 1.4227888642522788) internal successors, (115502), 81181 states have internal predecessors, (115502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81182 states to 81182 states and 115502 transitions. [2024-12-02 11:50:40,486 INFO L78 Accepts]: Start accepts. Automaton has 81182 states and 115502 transitions. Word has length 106 [2024-12-02 11:50:40,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:40,487 INFO L471 AbstractCegarLoop]: Abstraction has 81182 states and 115502 transitions. [2024-12-02 11:50:40,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:40,487 INFO L276 IsEmpty]: Start isEmpty. Operand 81182 states and 115502 transitions. [2024-12-02 11:50:40,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:40,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:40,491 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:40,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:50:40,491 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:40,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:40,492 INFO L85 PathProgramCache]: Analyzing trace with hash -438254109, now seen corresponding path program 1 times [2024-12-02 11:50:40,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:40,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451145045] [2024-12-02 11:50:40,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:40,645 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:50:40,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:40,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451145045] [2024-12-02 11:50:40,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451145045] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:40,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:40,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227308463] [2024-12-02 11:50:40,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:40,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:40,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:40,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:40,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:40,646 INFO L87 Difference]: Start difference. First operand 81182 states and 115502 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:44,674 INFO L93 Difference]: Finished difference Result 183726 states and 262326 transitions. [2024-12-02 11:50:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:44,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 11:50:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:44,868 INFO L225 Difference]: With dead ends: 183726 [2024-12-02 11:50:44,868 INFO L226 Difference]: Without dead ends: 168428 [2024-12-02 11:50:44,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:44,903 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 10034 mSDsluCounter, 2793 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10034 SdHoareTripleChecker+Valid, 4456 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:44,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10034 Valid, 4456 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:44,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168428 states. [2024-12-02 11:50:48,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168428 to 96478. [2024-12-02 11:50:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96478 states, 96476 states have (on average 1.422094614204569) internal successors, (137198), 96477 states have internal predecessors, (137198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:48,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96478 states to 96478 states and 137198 transitions. [2024-12-02 11:50:48,186 INFO L78 Accepts]: Start accepts. Automaton has 96478 states and 137198 transitions. Word has length 106 [2024-12-02 11:50:48,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:48,186 INFO L471 AbstractCegarLoop]: Abstraction has 96478 states and 137198 transitions. [2024-12-02 11:50:48,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 96478 states and 137198 transitions. [2024-12-02 11:50:48,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:48,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:48,191 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:48,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:50:48,191 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:48,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:48,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1342678755, now seen corresponding path program 1 times [2024-12-02 11:50:48,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:48,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302178183] [2024-12-02 11:50:48,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:48,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 11:50:48,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:48,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302178183] [2024-12-02 11:50:48,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302178183] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:48,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:48,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624276906] [2024-12-02 11:50:48,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:48,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:48,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:48,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:48,397 INFO L87 Difference]: Start difference. First operand 96478 states and 137198 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:52,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:52,053 INFO L93 Difference]: Finished difference Result 199022 states and 284022 transitions. [2024-12-02 11:50:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:50:52,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-12-02 11:50:52,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:52,231 INFO L225 Difference]: With dead ends: 199022 [2024-12-02 11:50:52,231 INFO L226 Difference]: Without dead ends: 183724 [2024-12-02 11:50:52,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:50:52,264 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 9891 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9891 SdHoareTripleChecker+Valid, 4582 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:52,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9891 Valid, 4582 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:50:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183724 states. [2024-12-02 11:50:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183724 to 111774. [2024-12-02 11:50:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111774 states, 111772 states have (on average 1.421590380417278) internal successors, (158894), 111773 states have internal predecessors, (158894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111774 states to 111774 states and 158894 transitions. [2024-12-02 11:50:55,918 INFO L78 Accepts]: Start accepts. Automaton has 111774 states and 158894 transitions. Word has length 106 [2024-12-02 11:50:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:55,918 INFO L471 AbstractCegarLoop]: Abstraction has 111774 states and 158894 transitions. [2024-12-02 11:50:55,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:50:55,918 INFO L276 IsEmpty]: Start isEmpty. Operand 111774 states and 158894 transitions. [2024-12-02 11:50:55,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 11:50:55,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:55,923 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:55,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:50:55,923 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:55,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:55,923 INFO L85 PathProgramCache]: Analyzing trace with hash 275096291, now seen corresponding path program 1 times [2024-12-02 11:50:55,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:55,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366165905] [2024-12-02 11:50:55,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:55,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:50:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 11:50:56,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:56,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366165905] [2024-12-02 11:50:56,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366165905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:56,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:50:56,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:50:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211663868] [2024-12-02 11:50:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:56,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:50:56,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:56,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:50:56,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:56,082 INFO L87 Difference]: Start difference. First operand 111774 states and 158894 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:00,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:00,588 INFO L93 Difference]: Finished difference Result 214318 states and 305718 transitions. [2024-12-02 11:51:00,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:51:00,589 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 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 106 [2024-12-02 11:51:00,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:00,824 INFO L225 Difference]: With dead ends: 214318 [2024-12-02 11:51:00,824 INFO L226 Difference]: Without dead ends: 199020 [2024-12-02 11:51:00,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:51:00,862 INFO L435 NwaCegarLoop]: 1662 mSDtfsCounter, 9814 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9814 SdHoareTripleChecker+Valid, 4782 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:00,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9814 Valid, 4782 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:51:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199020 states. [2024-12-02 11:51:04,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199020 to 127070. [2024-12-02 11:51:04,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127070 states, 127068 states have (on average 1.4212075424182327) internal successors, (180590), 127069 states have internal predecessors, (180590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127070 states to 127070 states and 180590 transitions. [2024-12-02 11:51:04,693 INFO L78 Accepts]: Start accepts. Automaton has 127070 states and 180590 transitions. Word has length 106 [2024-12-02 11:51:04,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:04,694 INFO L471 AbstractCegarLoop]: Abstraction has 127070 states and 180590 transitions. [2024-12-02 11:51:04,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:04,694 INFO L276 IsEmpty]: Start isEmpty. Operand 127070 states and 180590 transitions. [2024-12-02 11:51:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:51:04,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:04,699 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:51:04,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:51:04,699 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:04,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1524896782, now seen corresponding path program 1 times [2024-12-02 11:51:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:04,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984152749] [2024-12-02 11:51:04,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:04,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:04,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984152749] [2024-12-02 11:51:04,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984152749] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:04,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:04,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:04,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963501570] [2024-12-02 11:51:04,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:04,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:04,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:04,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:04,774 INFO L87 Difference]: Start difference. First operand 127070 states and 180590 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:07,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:07,778 INFO L93 Difference]: Finished difference Result 252578 states and 358704 transitions. [2024-12-02 11:51:07,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:07,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-12-02 11:51:07,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:07,898 INFO L225 Difference]: With dead ends: 252578 [2024-12-02 11:51:07,898 INFO L226 Difference]: Without dead ends: 127072 [2024-12-02 11:51:07,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:07,946 INFO L435 NwaCegarLoop]: 1634 mSDtfsCounter, 61 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:07,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3205 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:08,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127072 states. [2024-12-02 11:51:11,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127072 to 127070. [2024-12-02 11:51:11,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127070 states, 127068 states have (on average 1.4088676928888468) internal successors, (179022), 127069 states have internal predecessors, (179022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:11,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127070 states to 127070 states and 179022 transitions. [2024-12-02 11:51:11,485 INFO L78 Accepts]: Start accepts. Automaton has 127070 states and 179022 transitions. Word has length 107 [2024-12-02 11:51:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:11,486 INFO L471 AbstractCegarLoop]: Abstraction has 127070 states and 179022 transitions. [2024-12-02 11:51:11,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:11,486 INFO L276 IsEmpty]: Start isEmpty. Operand 127070 states and 179022 transitions. [2024-12-02 11:51:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 11:51:11,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:11,489 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:51:11,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:51:11,490 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:11,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash -916736837, now seen corresponding path program 1 times [2024-12-02 11:51:11,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:11,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69367256] [2024-12-02 11:51:11,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:11,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:11,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69367256] [2024-12-02 11:51:11,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69367256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:11,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:11,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:11,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279187838] [2024-12-02 11:51:11,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:11,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:11,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:11,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:11,587 INFO L87 Difference]: Start difference. First operand 127070 states and 179022 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:12,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:12,674 INFO L93 Difference]: Finished difference Result 172794 states and 243785 transitions. [2024-12-02 11:51:12,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:12,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2024-12-02 11:51:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:12,718 INFO L225 Difference]: With dead ends: 172794 [2024-12-02 11:51:12,718 INFO L226 Difference]: Without dead ends: 47288 [2024-12-02 11:51:12,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:12,766 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 55 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:12,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3202 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:12,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47288 states. [2024-12-02 11:51:14,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47288 to 47279. [2024-12-02 11:51:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47279 states, 47277 states have (on average 1.4105590456247223) internal successors, (66687), 47278 states have internal predecessors, (66687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47279 states to 47279 states and 66687 transitions. [2024-12-02 11:51:14,517 INFO L78 Accepts]: Start accepts. Automaton has 47279 states and 66687 transitions. Word has length 108 [2024-12-02 11:51:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:14,518 INFO L471 AbstractCegarLoop]: Abstraction has 47279 states and 66687 transitions. [2024-12-02 11:51:14,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:14,518 INFO L276 IsEmpty]: Start isEmpty. Operand 47279 states and 66687 transitions. [2024-12-02 11:51:14,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 11:51:14,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:14,521 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:51:14,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 11:51:14,522 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:14,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:14,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1786624096, now seen corresponding path program 1 times [2024-12-02 11:51:14,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:14,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663566388] [2024-12-02 11:51:14,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:14,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:14,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:14,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663566388] [2024-12-02 11:51:14,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663566388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:14,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:14,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:14,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110883607] [2024-12-02 11:51:14,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:14,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:14,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:14,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:14,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:14,630 INFO L87 Difference]: Start difference. First operand 47279 states and 66687 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:15,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:15,450 INFO L93 Difference]: Finished difference Result 70131 states and 98785 transitions. [2024-12-02 11:51:15,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:15,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-12-02 11:51:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:15,475 INFO L225 Difference]: With dead ends: 70131 [2024-12-02 11:51:15,475 INFO L226 Difference]: Without dead ends: 24433 [2024-12-02 11:51:15,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:15,497 INFO L435 NwaCegarLoop]: 1626 mSDtfsCounter, 57 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:15,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 3181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24433 states. [2024-12-02 11:51:16,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24433 to 24431. [2024-12-02 11:51:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24431 states, 24429 states have (on average 1.4048466985959311) internal successors, (34319), 24430 states have internal predecessors, (34319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24431 states to 24431 states and 34319 transitions. [2024-12-02 11:51:16,412 INFO L78 Accepts]: Start accepts. Automaton has 24431 states and 34319 transitions. Word has length 109 [2024-12-02 11:51:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:16,413 INFO L471 AbstractCegarLoop]: Abstraction has 24431 states and 34319 transitions. [2024-12-02 11:51:16,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 24431 states and 34319 transitions. [2024-12-02 11:51:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 11:51:16,415 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:16,416 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:16,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:51:16,416 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:16,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1939036594, now seen corresponding path program 1 times [2024-12-02 11:51:16,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:16,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227509596] [2024-12-02 11:51:16,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:16,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:16,518 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:16,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:16,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227509596] [2024-12-02 11:51:16,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227509596] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:16,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:16,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:16,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640573293] [2024-12-02 11:51:16,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:16,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:16,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:16,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:16,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:16,520 INFO L87 Difference]: Start difference. First operand 24431 states and 34319 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:16,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:16,927 INFO L93 Difference]: Finished difference Result 35859 states and 50233 transitions. [2024-12-02 11:51:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:16,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-12-02 11:51:16,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:16,942 INFO L225 Difference]: With dead ends: 35859 [2024-12-02 11:51:16,942 INFO L226 Difference]: Without dead ends: 13009 [2024-12-02 11:51:16,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:16,952 INFO L435 NwaCegarLoop]: 1619 mSDtfsCounter, 54 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:16,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3166 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:16,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13009 states. [2024-12-02 11:51:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13009 to 13007. [2024-12-02 11:51:17,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13007 states, 13005 states have (on average 1.4049211841599385) internal successors, (18271), 13006 states have internal predecessors, (18271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13007 states to 13007 states and 18271 transitions. [2024-12-02 11:51:17,368 INFO L78 Accepts]: Start accepts. Automaton has 13007 states and 18271 transitions. Word has length 111 [2024-12-02 11:51:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:17,368 INFO L471 AbstractCegarLoop]: Abstraction has 13007 states and 18271 transitions. [2024-12-02 11:51:17,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 13007 states and 18271 transitions. [2024-12-02 11:51:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 11:51:17,369 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:17,369 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:51:17,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:51:17,370 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:17,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:17,370 INFO L85 PathProgramCache]: Analyzing trace with hash 670853700, now seen corresponding path program 1 times [2024-12-02 11:51:17,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:17,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947274909] [2024-12-02 11:51:17,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:17,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:17,440 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:17,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:17,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947274909] [2024-12-02 11:51:17,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947274909] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:17,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:17,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:17,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765694882] [2024-12-02 11:51:17,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:17,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:17,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:17,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:17,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:17,441 INFO L87 Difference]: Start difference. First operand 13007 states and 18271 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:17,623 INFO L93 Difference]: Finished difference Result 18723 states and 26161 transitions. [2024-12-02 11:51:17,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:17,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-12-02 11:51:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:17,632 INFO L225 Difference]: With dead ends: 18723 [2024-12-02 11:51:17,632 INFO L226 Difference]: Without dead ends: 7297 [2024-12-02 11:51:17,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:17,637 INFO L435 NwaCegarLoop]: 1612 mSDtfsCounter, 51 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:17,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 3151 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7297 states. [2024-12-02 11:51:17,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7297 to 7295. [2024-12-02 11:51:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7295 states, 7293 states have (on average 1.4143699437817085) internal successors, (10315), 7294 states have internal predecessors, (10315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7295 states to 7295 states and 10315 transitions. [2024-12-02 11:51:17,796 INFO L78 Accepts]: Start accepts. Automaton has 7295 states and 10315 transitions. Word has length 113 [2024-12-02 11:51:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:17,796 INFO L471 AbstractCegarLoop]: Abstraction has 7295 states and 10315 transitions. [2024-12-02 11:51:17,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7295 states and 10315 transitions. [2024-12-02 11:51:17,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 11:51:17,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:17,797 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:17,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:51:17,798 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:17,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash -360015530, now seen corresponding path program 1 times [2024-12-02 11:51:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524901801] [2024-12-02 11:51:17,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:17,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:17,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524901801] [2024-12-02 11:51:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524901801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:17,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:17,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:17,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937659900] [2024-12-02 11:51:17,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:17,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:17,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:17,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:17,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:17,862 INFO L87 Difference]: Start difference. First operand 7295 states and 10315 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:17,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:17,984 INFO L93 Difference]: Finished difference Result 10155 states and 14227 transitions. [2024-12-02 11:51:17,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:17,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-12-02 11:51:17,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:17,990 INFO L225 Difference]: With dead ends: 10155 [2024-12-02 11:51:17,991 INFO L226 Difference]: Without dead ends: 4441 [2024-12-02 11:51:17,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:17,994 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 48 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:17,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3136 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:17,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2024-12-02 11:51:18,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4439. [2024-12-02 11:51:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4439 states, 4437 states have (on average 1.4358800991661032) internal successors, (6371), 4438 states have internal predecessors, (6371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4439 states to 4439 states and 6371 transitions. [2024-12-02 11:51:18,088 INFO L78 Accepts]: Start accepts. Automaton has 4439 states and 6371 transitions. Word has length 115 [2024-12-02 11:51:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:18,089 INFO L471 AbstractCegarLoop]: Abstraction has 4439 states and 6371 transitions. [2024-12-02 11:51:18,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4439 states and 6371 transitions. [2024-12-02 11:51:18,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 11:51:18,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:18,090 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:18,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:51:18,090 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:18,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash 166921960, now seen corresponding path program 1 times [2024-12-02 11:51:18,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:18,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514415592] [2024-12-02 11:51:18,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:18,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:18,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514415592] [2024-12-02 11:51:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514415592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:51:18,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:51:18,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:51:18,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434160739] [2024-12-02 11:51:18,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:51:18,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:51:18,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:18,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:51:18,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:18,154 INFO L87 Difference]: Start difference. First operand 4439 states and 6371 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:18,202 INFO L93 Difference]: Finished difference Result 5871 states and 8311 transitions. [2024-12-02 11:51:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:51:18,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-12-02 11:51:18,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:18,207 INFO L225 Difference]: With dead ends: 5871 [2024-12-02 11:51:18,207 INFO L226 Difference]: Without dead ends: 3013 [2024-12-02 11:51:18,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:51:18,209 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:18,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3121 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:51:18,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-12-02 11:51:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 3011. [2024-12-02 11:51:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3009 states have (on average 1.4675972083748754) internal successors, (4416), 3010 states have internal predecessors, (4416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 4416 transitions. [2024-12-02 11:51:18,263 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 4416 transitions. Word has length 117 [2024-12-02 11:51:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:18,263 INFO L471 AbstractCegarLoop]: Abstraction has 3011 states and 4416 transitions. [2024-12-02 11:51:18,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 4416 transitions. [2024-12-02 11:51:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 11:51:18,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:18,264 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:18,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:51:18,264 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:18,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:18,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2110968570, now seen corresponding path program 1 times [2024-12-02 11:51:18,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:18,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501002641] [2024-12-02 11:51:18,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:18,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:19,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:19,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501002641] [2024-12-02 11:51:19,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501002641] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:51:19,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807393006] [2024-12-02 11:51:19,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:19,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:19,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:51:19,395 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:51:19,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:51:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:19,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:51:19,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:51:20,272 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:20,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:51:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:21,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807393006] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:51:21,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:51:21,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-12-02 11:51:21,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015650813] [2024-12-02 11:51:21,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:51:21,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 11:51:21,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:21,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 11:51:21,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=672, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:51:21,626 INFO L87 Difference]: Start difference. First operand 3011 states and 4416 transitions. Second operand has 28 states, 28 states have (on average 11.25) internal successors, (315), 27 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:24,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:24,543 INFO L93 Difference]: Finished difference Result 8393 states and 11731 transitions. [2024-12-02 11:51:24,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 11:51:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 11.25) internal successors, (315), 27 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-12-02 11:51:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:24,550 INFO L225 Difference]: With dead ends: 8393 [2024-12-02 11:51:24,550 INFO L226 Difference]: Without dead ends: 6963 [2024-12-02 11:51:24,553 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 828 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=859, Invalid=3301, Unknown=0, NotChecked=0, Total=4160 [2024-12-02 11:51:24,553 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 26578 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 1105 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26578 SdHoareTripleChecker+Valid, 8235 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:24,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26578 Valid, 8235 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1105 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:51:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6963 states. [2024-12-02 11:51:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6963 to 6853. [2024-12-02 11:51:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6853 states, 6851 states have (on average 1.393957086556707) internal successors, (9550), 6852 states have internal predecessors, (9550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6853 states to 6853 states and 9550 transitions. [2024-12-02 11:51:24,701 INFO L78 Accepts]: Start accepts. Automaton has 6853 states and 9550 transitions. Word has length 119 [2024-12-02 11:51:24,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:24,701 INFO L471 AbstractCegarLoop]: Abstraction has 6853 states and 9550 transitions. [2024-12-02 11:51:24,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 11.25) internal successors, (315), 27 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:24,701 INFO L276 IsEmpty]: Start isEmpty. Operand 6853 states and 9550 transitions. [2024-12-02 11:51:24,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 11:51:24,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:24,702 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:24,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:51:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 11:51:24,903 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:24,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:24,903 INFO L85 PathProgramCache]: Analyzing trace with hash -791923775, now seen corresponding path program 1 times [2024-12-02 11:51:24,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:24,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492447339] [2024-12-02 11:51:24,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:24,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:24,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:25,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:25,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492447339] [2024-12-02 11:51:25,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492447339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:51:25,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240617199] [2024-12-02 11:51:25,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:25,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:25,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:51:25,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:51:25,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:51:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:25,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 11:51:25,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:51:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:25,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:51:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:27,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240617199] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:51:27,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:51:27,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:51:27,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298117200] [2024-12-02 11:51:27,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:51:27,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:51:27,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:27,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:51:27,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:51:27,035 INFO L87 Difference]: Start difference. First operand 6853 states and 9550 transitions. Second operand has 25 states, 25 states have (on average 13.44) internal successors, (336), 24 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:29,240 INFO L93 Difference]: Finished difference Result 26757 states and 36281 transitions. [2024-12-02 11:51:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-12-02 11:51:29,241 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.44) internal successors, (336), 24 states have internal predecessors, (336), 0 states have call successors, (0), 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 120 [2024-12-02 11:51:29,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:29,257 INFO L225 Difference]: With dead ends: 26757 [2024-12-02 11:51:29,257 INFO L226 Difference]: Without dead ends: 21485 [2024-12-02 11:51:29,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=629, Invalid=2233, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 11:51:29,264 INFO L435 NwaCegarLoop]: 1524 mSDtfsCounter, 21448 mSDsluCounter, 6567 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21448 SdHoareTripleChecker+Valid, 8091 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:29,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21448 Valid, 8091 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:51:29,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21485 states. [2024-12-02 11:51:29,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21485 to 21269. [2024-12-02 11:51:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21269 states, 21267 states have (on average 1.3403394931113932) internal successors, (28505), 21268 states have internal predecessors, (28505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21269 states to 21269 states and 28505 transitions. [2024-12-02 11:51:29,811 INFO L78 Accepts]: Start accepts. Automaton has 21269 states and 28505 transitions. Word has length 120 [2024-12-02 11:51:29,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:29,811 INFO L471 AbstractCegarLoop]: Abstraction has 21269 states and 28505 transitions. [2024-12-02 11:51:29,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.44) internal successors, (336), 24 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:29,811 INFO L276 IsEmpty]: Start isEmpty. Operand 21269 states and 28505 transitions. [2024-12-02 11:51:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 11:51:29,813 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:29,813 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:29,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:51:30,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:30,014 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:30,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:30,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1570019752, now seen corresponding path program 1 times [2024-12-02 11:51:30,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:30,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324881059] [2024-12-02 11:51:30,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:30,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:30,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324881059] [2024-12-02 11:51:30,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324881059] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:51:30,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328517093] [2024-12-02 11:51:30,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:30,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:30,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:51:30,349 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:51:30,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:51:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:30,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:51:30,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:51:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:30,976 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:51:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:32,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328517093] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:51:32,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:51:32,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-12-02 11:51:32,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185165905] [2024-12-02 11:51:32,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:51:32,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 11:51:32,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:32,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 11:51:32,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:51:32,183 INFO L87 Difference]: Start difference. First operand 21269 states and 28505 transitions. Second operand has 26 states, 26 states have (on average 12.653846153846153) internal successors, (329), 25 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:35,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:35,496 INFO L93 Difference]: Finished difference Result 92683 states and 122964 transitions. [2024-12-02 11:51:35,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 11:51:35,497 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 12.653846153846153) internal successors, (329), 25 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-12-02 11:51:35,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:35,553 INFO L225 Difference]: With dead ends: 92683 [2024-12-02 11:51:35,553 INFO L226 Difference]: Without dead ends: 72995 [2024-12-02 11:51:35,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=677, Invalid=2515, Unknown=0, NotChecked=0, Total=3192 [2024-12-02 11:51:35,573 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 23445 mSDsluCounter, 5781 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23445 SdHoareTripleChecker+Valid, 7373 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:35,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23445 Valid, 7373 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1587 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:51:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72995 states. [2024-12-02 11:51:37,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72995 to 67203. [2024-12-02 11:51:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67203 states, 67201 states have (on average 1.3050252228389458) internal successors, (87699), 67202 states have internal predecessors, (87699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67203 states to 67203 states and 87699 transitions. [2024-12-02 11:51:37,558 INFO L78 Accepts]: Start accepts. Automaton has 67203 states and 87699 transitions. Word has length 121 [2024-12-02 11:51:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:37,559 INFO L471 AbstractCegarLoop]: Abstraction has 67203 states and 87699 transitions. [2024-12-02 11:51:37,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 12.653846153846153) internal successors, (329), 25 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:37,559 INFO L276 IsEmpty]: Start isEmpty. Operand 67203 states and 87699 transitions. [2024-12-02 11:51:37,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:51:37,564 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:37,564 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:37,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:51:37,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:37,765 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:37,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 669411592, now seen corresponding path program 1 times [2024-12-02 11:51:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:37,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435709792] [2024-12-02 11:51:37,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:38,180 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:38,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:38,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435709792] [2024-12-02 11:51:38,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435709792] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:51:38,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042933268] [2024-12-02 11:51:38,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:38,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:38,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:51:38,182 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:51:38,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:51:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:38,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:51:38,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:51:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:38,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:51:39,572 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:39,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042933268] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:51:39,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:51:39,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 11:51:39,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692157331] [2024-12-02 11:51:39,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:51:39,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:51:39,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:51:39,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:51:39,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:51:39,573 INFO L87 Difference]: Start difference. First operand 67203 states and 87699 transitions. Second operand has 25 states, 25 states have (on average 13.32) internal successors, (333), 24 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:51:48,231 INFO L93 Difference]: Finished difference Result 344929 states and 450010 transitions. [2024-12-02 11:51:48,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 11:51:48,231 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.32) internal successors, (333), 24 states have internal predecessors, (333), 0 states have call successors, (0), 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 123 [2024-12-02 11:51:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:51:48,484 INFO L225 Difference]: With dead ends: 344929 [2024-12-02 11:51:48,484 INFO L226 Difference]: Without dead ends: 279307 [2024-12-02 11:51:48,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=622, Invalid=2458, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 11:51:48,536 INFO L435 NwaCegarLoop]: 1583 mSDtfsCounter, 23537 mSDsluCounter, 7224 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23537 SdHoareTripleChecker+Valid, 8807 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:51:48,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23537 Valid, 8807 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 11:51:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279307 states. [2024-12-02 11:51:57,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279307 to 276031. [2024-12-02 11:51:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276031 states, 276029 states have (on average 1.2762680732821552) internal successors, (352287), 276030 states have internal predecessors, (352287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276031 states to 276031 states and 352287 transitions. [2024-12-02 11:51:58,024 INFO L78 Accepts]: Start accepts. Automaton has 276031 states and 352287 transitions. Word has length 123 [2024-12-02 11:51:58,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:51:58,024 INFO L471 AbstractCegarLoop]: Abstraction has 276031 states and 352287 transitions. [2024-12-02 11:51:58,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.32) internal successors, (333), 24 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:51:58,025 INFO L276 IsEmpty]: Start isEmpty. Operand 276031 states and 352287 transitions. [2024-12-02 11:51:58,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:51:58,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:51:58,036 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:51:58,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:51:58,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:58,236 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:51:58,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:51:58,237 INFO L85 PathProgramCache]: Analyzing trace with hash -674922600, now seen corresponding path program 1 times [2024-12-02 11:51:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:51:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947688961] [2024-12-02 11:51:58,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:51:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:51:59,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:51:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947688961] [2024-12-02 11:51:59,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947688961] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:51:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21137997] [2024-12-02 11:51:59,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:51:59,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:51:59,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:51:59,490 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:51:59,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:51:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:51:59,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-12-02 11:51:59,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:52:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:04,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:52:10,186 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:52:10,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21137997] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:52:10,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:52:10,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 20] total 50 [2024-12-02 11:52:10,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260428329] [2024-12-02 11:52:10,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:52:10,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-12-02 11:52:10,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:52:10,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-12-02 11:52:10,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=2058, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 11:52:10,188 INFO L87 Difference]: Start difference. First operand 276031 states and 352287 transitions. Second operand has 50 states, 50 states have (on average 7.18) internal successors, (359), 50 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:52:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:52:42,091 INFO L93 Difference]: Finished difference Result 435315 states and 553621 transitions. [2024-12-02 11:52:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-12-02 11:52:42,092 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 7.18) internal successors, (359), 50 states have internal predecessors, (359), 0 states have call successors, (0), 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 125 [2024-12-02 11:52:42,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:52:42,414 INFO L225 Difference]: With dead ends: 435315 [2024-12-02 11:52:42,414 INFO L226 Difference]: Without dead ends: 338449 [2024-12-02 11:52:42,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5694 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=3775, Invalid=13781, Unknown=0, NotChecked=0, Total=17556 [2024-12-02 11:52:42,477 INFO L435 NwaCegarLoop]: 1548 mSDtfsCounter, 23543 mSDsluCounter, 21838 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23543 SdHoareTripleChecker+Valid, 23386 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:52:42,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23543 Valid, 23386 Invalid, 4147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 11:52:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338449 states. [2024-12-02 11:52:54,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338449 to 291303. [2024-12-02 11:52:54,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291303 states, 291301 states have (on average 1.274595693114682) internal successors, (371291), 291302 states have internal predecessors, (371291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:52:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291303 states to 291303 states and 371291 transitions. [2024-12-02 11:52:55,111 INFO L78 Accepts]: Start accepts. Automaton has 291303 states and 371291 transitions. Word has length 125 [2024-12-02 11:52:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:52:55,112 INFO L471 AbstractCegarLoop]: Abstraction has 291303 states and 371291 transitions. [2024-12-02 11:52:55,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 7.18) internal successors, (359), 50 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:52:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 291303 states and 371291 transitions. [2024-12-02 11:52:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:52:55,142 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:52:55,143 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:52:55,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 11:52:55,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:52:55,343 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:52:55,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:52:55,344 INFO L85 PathProgramCache]: Analyzing trace with hash 2141275764, now seen corresponding path program 1 times [2024-12-02 11:52:55,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:52:55,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759264972] [2024-12-02 11:52:55,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:55,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:01,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:53:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759264972] [2024-12-02 11:53:01,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759264972] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:53:01,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313338643] [2024-12-02 11:53:01,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:01,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:53:01,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:53:01,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:53:01,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:53:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:02,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 11:53:02,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:53:04,614 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:04,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:53:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:53:08,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313338643] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:53:08,484 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:53:08,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 16, 15] total 67 [2024-12-02 11:53:08,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630028480] [2024-12-02 11:53:08,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:53:08,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-12-02 11:53:08,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:08,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-12-02 11:53:08,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=4160, Unknown=0, NotChecked=0, Total=4422 [2024-12-02 11:53:08,486 INFO L87 Difference]: Start difference. First operand 291303 states and 371291 transitions. Second operand has 67 states, 67 states have (on average 5.2835820895522385) internal successors, (354), 67 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:57:34,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:57:34,440 INFO L93 Difference]: Finished difference Result 1020113 states and 1295234 transitions. [2024-12-02 11:57:34,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 641 states. [2024-12-02 11:57:34,443 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 5.2835820895522385) internal successors, (354), 67 states have internal predecessors, (354), 0 states have call successors, (0), 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 125 [2024-12-02 11:57:34,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:57:35,858 INFO L225 Difference]: With dead ends: 1020113 [2024-12-02 11:57:35,859 INFO L226 Difference]: Without dead ends: 908057 [2024-12-02 11:57:36,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 703 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222943 ImplicationChecksByTransitivity, 203.6s TimeCoverageRelationStatistics Valid=63158, Invalid=433162, Unknown=0, NotChecked=0, Total=496320 [2024-12-02 11:57:36,103 INFO L435 NwaCegarLoop]: 1867 mSDtfsCounter, 36545 mSDsluCounter, 57317 mSDsCounter, 0 mSdLazyCounter, 31969 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36545 SdHoareTripleChecker+Valid, 59184 SdHoareTripleChecker+Invalid, 32336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 31969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:57:36,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36545 Valid, 59184 Invalid, 32336 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [367 Valid, 31969 Invalid, 0 Unknown, 0 Unchecked, 26.5s Time] [2024-12-02 11:57:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908057 states. [2024-12-02 11:58:00,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908057 to 443161. [2024-12-02 11:58:01,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443161 states, 443159 states have (on average 1.2767652242197496) internal successors, (565810), 443160 states have internal predecessors, (565810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:58:02,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443161 states to 443161 states and 565810 transitions. [2024-12-02 11:58:02,382 INFO L78 Accepts]: Start accepts. Automaton has 443161 states and 565810 transitions. Word has length 125 [2024-12-02 11:58:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:58:02,383 INFO L471 AbstractCegarLoop]: Abstraction has 443161 states and 565810 transitions. [2024-12-02 11:58:02,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 5.2835820895522385) internal successors, (354), 67 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:58:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 443161 states and 565810 transitions. [2024-12-02 11:58:02,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:58:02,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:58:02,411 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:58:02,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-02 11:58:02,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:58:02,613 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:58:02,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:58:02,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1657418612, now seen corresponding path program 1 times [2024-12-02 11:58:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:58:02,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360573549] [2024-12-02 11:58:02,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:58:02,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:58:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:58:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:04,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:58:04,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360573549] [2024-12-02 11:58:04,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360573549] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:58:04,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334164648] [2024-12-02 11:58:04,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:58:04,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:58:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:58:04,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:58:04,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:58:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:58:05,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-12-02 11:58:05,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:58:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:08,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:58:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:58:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334164648] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:58:12,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:58:12,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 18] total 42 [2024-12-02 11:58:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31666501] [2024-12-02 11:58:12,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:58:12,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-12-02 11:58:12,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:58:12,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-12-02 11:58:12,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1495, Unknown=0, NotChecked=0, Total=1722 [2024-12-02 11:58:12,129 INFO L87 Difference]: Start difference. First operand 443161 states and 565810 transitions. Second operand has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:59:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:59:42,774 INFO L93 Difference]: Finished difference Result 1494483 states and 1920340 transitions. [2024-12-02 11:59:42,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2024-12-02 11:59:42,774 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 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 125 [2024-12-02 11:59:42,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:59:44,671 INFO L225 Difference]: With dead ends: 1494483 [2024-12-02 11:59:44,671 INFO L226 Difference]: Without dead ends: 1319313 [2024-12-02 11:59:45,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12829 ImplicationChecksByTransitivity, 29.6s TimeCoverageRelationStatistics Valid=6895, Invalid=24611, Unknown=0, NotChecked=0, Total=31506 [2024-12-02 11:59:45,161 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 15771 mSDsluCounter, 18032 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15771 SdHoareTripleChecker+Valid, 19665 SdHoareTripleChecker+Invalid, 4562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:59:45,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15771 Valid, 19665 Invalid, 4562 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 11:59:45,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319313 states. [2024-12-02 12:00:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319313 to 542517. [2024-12-02 12:00:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542517 states, 542515 states have (on average 1.2763610222758817) internal successors, (692445), 542516 states have internal predecessors, (692445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:00:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542517 states to 542517 states and 692445 transitions. [2024-12-02 12:00:22,073 INFO L78 Accepts]: Start accepts. Automaton has 542517 states and 692445 transitions. Word has length 125 [2024-12-02 12:00:22,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:22,074 INFO L471 AbstractCegarLoop]: Abstraction has 542517 states and 692445 transitions. [2024-12-02 12:00:22,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.690476190476191) internal successors, (323), 42 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:00:22,075 INFO L276 IsEmpty]: Start isEmpty. Operand 542517 states and 692445 transitions. [2024-12-02 12:00:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-12-02 12:00:22,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:22,078 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 12:00:22,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 12:00:22,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 12:00:22,279 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:00:22,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:22,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1511778917, now seen corresponding path program 1 times [2024-12-02 12:00:22,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:22,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063615464] [2024-12-02 12:00:22,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:22,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:00:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:23,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:23,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063615464] [2024-12-02 12:00:23,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063615464] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:00:23,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443736545] [2024-12-02 12:00:23,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:23,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:00:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:00:23,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:00:23,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c65cf067-72f8-4312-a5e3-c8f3748d8cda/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 12:00:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:23,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 12:00:23,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:00:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:24,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:00:25,798 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:00:25,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443736545] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 12:00:25,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 12:00:25,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 32 [2024-12-02 12:00:25,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995555399] [2024-12-02 12:00:25,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 12:00:25,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-12-02 12:00:25,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:25,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-12-02 12:00:25,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2024-12-02 12:00:25,801 INFO L87 Difference]: Start difference. First operand 542517 states and 692445 transitions. Second operand has 32 states, 32 states have (on average 9.4375) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:01:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:24,862 INFO L93 Difference]: Finished difference Result 1385984 states and 1777272 transitions. [2024-12-02 12:01:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 12:01:24,863 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.4375) internal successors, (302), 32 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2024-12-02 12:01:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:27,044 INFO L225 Difference]: With dead ends: 1385984 [2024-12-02 12:01:27,045 INFO L226 Difference]: Without dead ends: 1231904 [2024-12-02 12:01:27,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=576, Invalid=2286, Unknown=0, NotChecked=0, Total=2862 [2024-12-02 12:01:27,326 INFO L435 NwaCegarLoop]: 1562 mSDtfsCounter, 17445 mSDsluCounter, 14317 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17445 SdHoareTripleChecker+Valid, 15879 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:27,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17445 Valid, 15879 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:01:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231904 states.