./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i --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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/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 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:09:53,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:09:53,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:09:53,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:09:53,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:09:53,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:09:53,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:09:53,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:09:53,982 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:09:53,982 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:09:53,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:09:53,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:09:53,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:09:53,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:09:53,982 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:09:53,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:09:53,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:09:53,984 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:09:53,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:09:53,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:09:53,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:09:53,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:09:53,985 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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/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 -> 760c1d743f5a1ad25ea52dedd60162abae8ccc16a1aae8053ec51960a678eda5 [2024-12-02 07:09:54,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:09:54,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:09:54,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:09:54,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:09:54,220 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:09:54,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-12-02 07:09:56,929 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/data/dec698558/10fccaae41d74301962394beb99cc6a1/FLAG2451fc2fb [2024-12-02 07:09:57,155 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:09:57,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i [2024-12-02 07:09:57,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/data/dec698558/10fccaae41d74301962394beb99cc6a1/FLAG2451fc2fb [2024-12-02 07:09:57,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/data/dec698558/10fccaae41d74301962394beb99cc6a1 [2024-12-02 07:09:57,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:09:57,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:09:57,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:09:57,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:09:57,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:09:57,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222a0108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57, skipping insertion in model container [2024-12-02 07:09:57,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:09:57,618 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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-12-02 07:09:57,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:09:57,683 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:09:57,693 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_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-53.i[917,930] [2024-12-02 07:09:57,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:09:57,745 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:09:57,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57 WrapperNode [2024-12-02 07:09:57,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:09:57,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:09:57,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:09:57,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:09:57,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,795 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 501 [2024-12-02 07:09:57,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:09:57,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:09:57,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:09:57,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:09:57,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,815 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 07:09:57,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,830 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:09:57,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:09:57,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:09:57,845 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:09:57,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (1/1) ... [2024-12-02 07:09:57,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:09:57,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:09:57,873 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:09:57,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 07:09:57,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 07:09:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 07:09:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:09:57,899 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:09:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 07:09:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:09:57,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:09:58,006 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:09:58,008 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:09:58,592 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-12-02 07:09:58,592 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:09:58,602 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:09:58,602 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:09:58,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:09:58 BoogieIcfgContainer [2024-12-02 07:09:58,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:09:58,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:09:58,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:09:58,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:09:58,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:09:57" (1/3) ... [2024-12-02 07:09:58,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7a232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:09:58, skipping insertion in model container [2024-12-02 07:09:58,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:09:57" (2/3) ... [2024-12-02 07:09:58,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7a232f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:09:58, skipping insertion in model container [2024-12-02 07:09:58,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:09:58" (3/3) ... [2024-12-02 07:09:58,610 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-53.i [2024-12-02 07:09:58,621 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:09:58,622 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-53.i that has 2 procedures, 112 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:09:58,664 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:09:58,672 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;@e1e92e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:09:58,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:09:58,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:09:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:09:58,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:09:58,687 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:09:58,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:09:58,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:09:58,691 INFO L85 PathProgramCache]: Analyzing trace with hash 528541446, now seen corresponding path program 1 times [2024-12-02 07:09:58,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:09:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370648911] [2024-12-02 07:09:58,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:09:58,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:09:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:09:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 07:09:59,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:09:59,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370648911] [2024-12-02 07:09:59,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370648911] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:09:59,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215027515] [2024-12-02 07:09:59,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:09:59,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:09:59,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:09:59,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:09:59,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:09:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:09:59,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:09:59,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:09:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 07:09:59,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:09:59,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215027515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:09:59,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:09:59,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:09:59,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863260956] [2024-12-02 07:09:59,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:09:59,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:09:59,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:09:59,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:09:59,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:09:59,341 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:09:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:09:59,363 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-12-02 07:09:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:09:59,364 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-12-02 07:09:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:09:59,369 INFO L225 Difference]: With dead ends: 217 [2024-12-02 07:09:59,369 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:09:59,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 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 07:09:59,375 INFO L435 NwaCegarLoop]: 155 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, 155 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 07:09:59,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:09:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:09:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:09:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:09:59,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-12-02 07:09:59,406 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-12-02 07:09:59,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:09:59,406 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-12-02 07:09:59,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 07:09:59,407 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-12-02 07:09:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:09:59,409 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:09:59,409 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:09:59,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:09:59,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:09:59,609 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:09:59,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:09:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1839681894, now seen corresponding path program 1 times [2024-12-02 07:09:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:09:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601511189] [2024-12-02 07:09:59,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:09:59,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:09:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:00,175 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:00,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:00,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601511189] [2024-12-02 07:10:00,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601511189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:00,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:00,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:10:00,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914863542] [2024-12-02 07:10:00,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:00,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:10:00,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:00,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:10:00,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:10:00,178 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:00,205 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-12-02 07:10:00,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:10:00,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-12-02 07:10:00,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:00,209 INFO L225 Difference]: With dead ends: 213 [2024-12-02 07:10:00,209 INFO L226 Difference]: Without dead ends: 108 [2024-12-02 07:10:00,209 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 07:10:00,210 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:00,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 302 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:10:00,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-12-02 07:10:00,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-12-02 07:10:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:10:00,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-12-02 07:10:00,220 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-12-02 07:10:00,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:00,222 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-12-02 07:10:00,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:00,222 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-12-02 07:10:00,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:10:00,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:00,233 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:00,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:10:00,233 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:00,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash 818613540, now seen corresponding path program 1 times [2024-12-02 07:10:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:00,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625756468] [2024-12-02 07:10:00,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:00,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:04,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:04,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625756468] [2024-12-02 07:10:04,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625756468] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:04,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:04,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:10:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989590841] [2024-12-02 07:10:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:04,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:10:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:04,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:10:04,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:10:04,294 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:05,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:05,206 INFO L93 Difference]: Finished difference Result 266 states and 381 transitions. [2024-12-02 07:10:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:10:05,207 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 140 [2024-12-02 07:10:05,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:05,209 INFO L225 Difference]: With dead ends: 266 [2024-12-02 07:10:05,209 INFO L226 Difference]: Without dead ends: 161 [2024-12-02 07:10:05,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:10:05,210 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 487 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:05,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 408 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:10:05,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-12-02 07:10:05,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 126. [2024-12-02 07:10:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 07:10:05,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 181 transitions. [2024-12-02 07:10:05,232 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 181 transitions. Word has length 140 [2024-12-02 07:10:05,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:05,232 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 181 transitions. [2024-12-02 07:10:05,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:05,232 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 181 transitions. [2024-12-02 07:10:05,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:10:05,234 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:05,234 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:05,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:10:05,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:05,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:05,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1519678118, now seen corresponding path program 1 times [2024-12-02 07:10:05,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:05,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928995575] [2024-12-02 07:10:05,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:05,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:10,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:10,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928995575] [2024-12-02 07:10:10,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928995575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:10,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:10,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 07:10:10,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132127964] [2024-12-02 07:10:10,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:10,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 07:10:10,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:10,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 07:10:10,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:10:10,338 INFO L87 Difference]: Start difference. First operand 126 states and 181 transitions. Second operand has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:10:11,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:11,506 INFO L93 Difference]: Finished difference Result 357 states and 513 transitions. [2024-12-02 07:10:11,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:10:11,507 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-12-02 07:10:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:11,509 INFO L225 Difference]: With dead ends: 357 [2024-12-02 07:10:11,509 INFO L226 Difference]: Without dead ends: 234 [2024-12-02 07:10:11,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:10:11,510 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 242 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:11,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 692 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:10:11,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-12-02 07:10:11,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 227. [2024-12-02 07:10:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 188 states have (on average 1.3563829787234043) internal successors, (255), 188 states have internal predecessors, (255), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:10:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 327 transitions. [2024-12-02 07:10:11,543 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 327 transitions. Word has length 140 [2024-12-02 07:10:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:11,543 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 327 transitions. [2024-12-02 07:10:11,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:10:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 327 transitions. [2024-12-02 07:10:11,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:10:11,545 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:11,545 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:11,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:10:11,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:11,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:11,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2051277675, now seen corresponding path program 1 times [2024-12-02 07:10:11,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:11,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379845072] [2024-12-02 07:10:11,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:11,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:14,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:14,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379845072] [2024-12-02 07:10:14,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379845072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:14,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:14,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:10:14,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045253393] [2024-12-02 07:10:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:14,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:10:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:14,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:10:14,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:10:14,235 INFO L87 Difference]: Start difference. First operand 227 states and 327 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:10:14,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:14,782 INFO L93 Difference]: Finished difference Result 352 states and 508 transitions. [2024-12-02 07:10:14,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:10:14,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-12-02 07:10:14,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:14,785 INFO L225 Difference]: With dead ends: 352 [2024-12-02 07:10:14,785 INFO L226 Difference]: Without dead ends: 229 [2024-12-02 07:10:14,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:10:14,786 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 402 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:14,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 322 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:10:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-12-02 07:10:14,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 211. [2024-12-02 07:10:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 172 states have (on average 1.3372093023255813) internal successors, (230), 172 states have internal predecessors, (230), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:10:14,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 302 transitions. [2024-12-02 07:10:14,824 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 302 transitions. Word has length 142 [2024-12-02 07:10:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:14,824 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 302 transitions. [2024-12-02 07:10:14,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:10:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 302 transitions. [2024-12-02 07:10:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:10:14,826 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:14,826 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:14,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:10:14,827 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:14,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:14,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1542625043, now seen corresponding path program 1 times [2024-12-02 07:10:14,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:14,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864597547] [2024-12-02 07:10:14,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:14,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:20,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864597547] [2024-12-02 07:10:20,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864597547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:20,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:20,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:10:20,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142651651] [2024-12-02 07:10:20,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:20,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:10:20,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:20,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:10:20,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:10:20,474 INFO L87 Difference]: Start difference. First operand 211 states and 302 transitions. Second operand has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:10:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:23,178 INFO L93 Difference]: Finished difference Result 387 states and 547 transitions. [2024-12-02 07:10:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:10:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 142 [2024-12-02 07:10:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:23,180 INFO L225 Difference]: With dead ends: 387 [2024-12-02 07:10:23,180 INFO L226 Difference]: Without dead ends: 280 [2024-12-02 07:10:23,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:10:23,181 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 419 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:23,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 876 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 07:10:23,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-12-02 07:10:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 276. [2024-12-02 07:10:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.341991341991342) internal successors, (310), 233 states have internal predecessors, (310), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 07:10:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 390 transitions. [2024-12-02 07:10:23,222 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 390 transitions. Word has length 142 [2024-12-02 07:10:23,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:23,223 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 390 transitions. [2024-12-02 07:10:23,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 17 states have internal predecessors, (55), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:10:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 390 transitions. [2024-12-02 07:10:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 07:10:23,224 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:23,224 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:23,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:10:23,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:23,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1602478714, now seen corresponding path program 1 times [2024-12-02 07:10:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33833134] [2024-12-02 07:10:23,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:23,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:23,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33833134] [2024-12-02 07:10:23,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33833134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:23,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:23,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:10:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326108136] [2024-12-02 07:10:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:23,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:10:23,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:23,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:10:23,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:10:23,420 INFO L87 Difference]: Start difference. First operand 276 states and 390 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:23,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:23,478 INFO L93 Difference]: Finished difference Result 540 states and 767 transitions. [2024-12-02 07:10:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:10:23,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 07:10:23,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:23,481 INFO L225 Difference]: With dead ends: 540 [2024-12-02 07:10:23,481 INFO L226 Difference]: Without dead ends: 276 [2024-12-02 07:10:23,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:10:23,482 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:23,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:10:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-12-02 07:10:23,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-12-02 07:10:23,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.329004329004329) internal successors, (307), 233 states have internal predecessors, (307), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 07:10:23,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 387 transitions. [2024-12-02 07:10:23,521 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 387 transitions. Word has length 145 [2024-12-02 07:10:23,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:23,522 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 387 transitions. [2024-12-02 07:10:23,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:23,522 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 387 transitions. [2024-12-02 07:10:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 07:10:23,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:23,523 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:23,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:10:23,523 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:23,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1015672700, now seen corresponding path program 1 times [2024-12-02 07:10:23,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:23,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884324164] [2024-12-02 07:10:23,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:23,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:23,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:23,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884324164] [2024-12-02 07:10:23,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884324164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:23,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:23,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:10:23,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256554539] [2024-12-02 07:10:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:23,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:10:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:23,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:10:23,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:10:23,983 INFO L87 Difference]: Start difference. First operand 276 states and 387 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:24,334 INFO L93 Difference]: Finished difference Result 658 states and 919 transitions. [2024-12-02 07:10:24,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:10:24,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 07:10:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:24,337 INFO L225 Difference]: With dead ends: 658 [2024-12-02 07:10:24,337 INFO L226 Difference]: Without dead ends: 394 [2024-12-02 07:10:24,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:10:24,339 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 175 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:24,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 603 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:10:24,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-12-02 07:10:24,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 311. [2024-12-02 07:10:24,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 266 states have (on average 1.3157894736842106) internal successors, (350), 268 states have internal predecessors, (350), 40 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-02 07:10:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 430 transitions. [2024-12-02 07:10:24,381 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 430 transitions. Word has length 145 [2024-12-02 07:10:24,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:24,382 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 430 transitions. [2024-12-02 07:10:24,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 430 transitions. [2024-12-02 07:10:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:10:24,383 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:24,383 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:24,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:10:24,383 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:24,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2143372836, now seen corresponding path program 1 times [2024-12-02 07:10:24,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:24,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978699406] [2024-12-02 07:10:24,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:27,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:27,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978699406] [2024-12-02 07:10:27,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978699406] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:27,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:27,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:10:27,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378354827] [2024-12-02 07:10:27,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:27,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:10:27,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:27,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:10:27,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:10:27,203 INFO L87 Difference]: Start difference. First operand 311 states and 430 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:28,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:28,907 INFO L93 Difference]: Finished difference Result 767 states and 1065 transitions. [2024-12-02 07:10:28,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:10:28,907 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-12-02 07:10:28,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:28,910 INFO L225 Difference]: With dead ends: 767 [2024-12-02 07:10:28,910 INFO L226 Difference]: Without dead ends: 468 [2024-12-02 07:10:28,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:10:28,912 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 353 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:28,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 943 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:10:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-12-02 07:10:28,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 446. [2024-12-02 07:10:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 382 states have (on average 1.324607329842932) internal successors, (506), 384 states have internal predecessors, (506), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:28,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 622 transitions. [2024-12-02 07:10:28,998 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 622 transitions. Word has length 146 [2024-12-02 07:10:28,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:28,999 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 622 transitions. [2024-12-02 07:10:28,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:28,999 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 622 transitions. [2024-12-02 07:10:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:10:29,000 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:29,000 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:29,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:10:29,001 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:29,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:29,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1450529882, now seen corresponding path program 1 times [2024-12-02 07:10:29,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:29,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614487371] [2024-12-02 07:10:29,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:29,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:30,708 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:30,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:30,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614487371] [2024-12-02 07:10:30,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614487371] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:30,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:30,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:10:30,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461749169] [2024-12-02 07:10:30,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:30,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:10:30,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:30,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:10:30,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:10:30,709 INFO L87 Difference]: Start difference. First operand 446 states and 622 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:32,005 INFO L93 Difference]: Finished difference Result 1019 states and 1426 transitions. [2024-12-02 07:10:32,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:10:32,005 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-12-02 07:10:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:32,008 INFO L225 Difference]: With dead ends: 1019 [2024-12-02 07:10:32,008 INFO L226 Difference]: Without dead ends: 576 [2024-12-02 07:10:32,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:10:32,010 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 321 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:32,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 579 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 07:10:32,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-12-02 07:10:32,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 480. [2024-12-02 07:10:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 416 states have (on average 1.3293269230769231) internal successors, (553), 418 states have internal predecessors, (553), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 669 transitions. [2024-12-02 07:10:32,106 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 669 transitions. Word has length 146 [2024-12-02 07:10:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:32,106 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 669 transitions. [2024-12-02 07:10:32,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 669 transitions. [2024-12-02 07:10:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:10:32,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:32,108 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:32,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:10:32,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:32,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1325724386, now seen corresponding path program 1 times [2024-12-02 07:10:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157245944] [2024-12-02 07:10:32,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157245944] [2024-12-02 07:10:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157245944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:35,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:10:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963413097] [2024-12-02 07:10:35,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:35,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:10:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:35,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:10:35,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:10:35,199 INFO L87 Difference]: Start difference. First operand 480 states and 669 transitions. Second operand has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:10:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:37,562 INFO L93 Difference]: Finished difference Result 970 states and 1351 transitions. [2024-12-02 07:10:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:10:37,563 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 146 [2024-12-02 07:10:37,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:37,565 INFO L225 Difference]: With dead ends: 970 [2024-12-02 07:10:37,565 INFO L226 Difference]: Without dead ends: 493 [2024-12-02 07:10:37,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:10:37,566 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 381 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:37,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1185 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 07:10:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-12-02 07:10:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 481. [2024-12-02 07:10:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 417 states have (on average 1.328537170263789) internal successors, (554), 419 states have internal predecessors, (554), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:37,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 670 transitions. [2024-12-02 07:10:37,644 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 670 transitions. Word has length 146 [2024-12-02 07:10:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:37,645 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 670 transitions. [2024-12-02 07:10:37,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.933333333333333) internal successors, (59), 17 states have internal predecessors, (59), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:10:37,645 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 670 transitions. [2024-12-02 07:10:37,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:10:37,646 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:37,646 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:37,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:10:37,646 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:37,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2026788964, now seen corresponding path program 1 times [2024-12-02 07:10:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195658558] [2024-12-02 07:10:37,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:37,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:40,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:40,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195658558] [2024-12-02 07:10:40,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195658558] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:40,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:40,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:10:40,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693905815] [2024-12-02 07:10:40,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:40,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:10:40,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:40,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:10:40,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:10:40,578 INFO L87 Difference]: Start difference. First operand 481 states and 670 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:42,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:42,598 INFO L93 Difference]: Finished difference Result 973 states and 1353 transitions. [2024-12-02 07:10:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:10:42,598 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2024-12-02 07:10:42,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:42,601 INFO L225 Difference]: With dead ends: 973 [2024-12-02 07:10:42,601 INFO L226 Difference]: Without dead ends: 495 [2024-12-02 07:10:42,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:10:42,603 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 225 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1228 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 1255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:42,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1102 Invalid, 1255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 07:10:42,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-12-02 07:10:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 480. [2024-12-02 07:10:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 416 states have (on average 1.3269230769230769) internal successors, (552), 418 states have internal predecessors, (552), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 668 transitions. [2024-12-02 07:10:42,724 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 668 transitions. Word has length 146 [2024-12-02 07:10:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:42,724 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 668 transitions. [2024-12-02 07:10:42,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:10:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 668 transitions. [2024-12-02 07:10:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 07:10:42,726 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:42,726 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:42,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:10:42,726 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:42,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:42,727 INFO L85 PathProgramCache]: Analyzing trace with hash -390002472, now seen corresponding path program 1 times [2024-12-02 07:10:42,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:42,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845864295] [2024-12-02 07:10:42,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:42,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:10:42,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:42,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845864295] [2024-12-02 07:10:42,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845864295] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:10:42,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82296278] [2024-12-02 07:10:42,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:42,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:10:42,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:10:42,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:10:42,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:10:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:43,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 07:10:43,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:10:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:43,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:10:43,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82296278] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:43,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:10:43,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-12-02 07:10:43,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713191286] [2024-12-02 07:10:43,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:43,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:10:43,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:43,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:10:43,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:10:43,165 INFO L87 Difference]: Start difference. First operand 480 states and 668 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:43,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:43,252 INFO L93 Difference]: Finished difference Result 977 states and 1358 transitions. [2024-12-02 07:10:43,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:10:43,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 07:10:43,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:43,256 INFO L225 Difference]: With dead ends: 977 [2024-12-02 07:10:43,256 INFO L226 Difference]: Without dead ends: 500 [2024-12-02 07:10:43,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:10:43,257 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:43,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 734 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:10:43,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-12-02 07:10:43,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 491. [2024-12-02 07:10:43,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 427 states have (on average 1.3185011709601873) internal successors, (563), 429 states have internal predecessors, (563), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 679 transitions. [2024-12-02 07:10:43,313 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 679 transitions. Word has length 147 [2024-12-02 07:10:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:43,313 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 679 transitions. [2024-12-02 07:10:43,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 679 transitions. [2024-12-02 07:10:43,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 07:10:43,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:43,314 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:43,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:10:43,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 07:10:43,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:43,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1451337970, now seen corresponding path program 1 times [2024-12-02 07:10:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:43,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313986940] [2024-12-02 07:10:43,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:43,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:43,672 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:10:43,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:43,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313986940] [2024-12-02 07:10:43,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313986940] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:10:43,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440874876] [2024-12-02 07:10:43,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:43,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:10:43,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:10:43,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:10:43,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:10:43,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:43,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 07:10:43,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:10:43,963 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:43,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:10:43,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440874876] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:43,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:10:43,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 07:10:43,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210325106] [2024-12-02 07:10:43,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:43,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:10:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:43,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:10:43,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:10:43,965 INFO L87 Difference]: Start difference. First operand 491 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:44,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:44,039 INFO L93 Difference]: Finished difference Result 994 states and 1375 transitions. [2024-12-02 07:10:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:10:44,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 07:10:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:44,041 INFO L225 Difference]: With dead ends: 994 [2024-12-02 07:10:44,041 INFO L226 Difference]: Without dead ends: 506 [2024-12-02 07:10:44,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:10:44,042 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:44,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:10:44,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-12-02 07:10:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-12-02 07:10:44,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 442 states have (on average 1.3076923076923077) internal successors, (578), 444 states have internal predecessors, (578), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 694 transitions. [2024-12-02 07:10:44,098 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 694 transitions. Word has length 147 [2024-12-02 07:10:44,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:44,099 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 694 transitions. [2024-12-02 07:10:44,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 694 transitions. [2024-12-02 07:10:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:10:44,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:44,100 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:44,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:10:44,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:10:44,300 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:44,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1207686357, now seen corresponding path program 1 times [2024-12-02 07:10:44,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:44,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231347340] [2024-12-02 07:10:44,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:44,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:45,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:45,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231347340] [2024-12-02 07:10:45,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231347340] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:45,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:45,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:10:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690221195] [2024-12-02 07:10:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:45,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:10:45,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:45,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:10:45,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:10:45,151 INFO L87 Difference]: Start difference. First operand 506 states and 694 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:46,168 INFO L93 Difference]: Finished difference Result 969 states and 1327 transitions. [2024-12-02 07:10:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:10:46,169 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-12-02 07:10:46,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:46,171 INFO L225 Difference]: With dead ends: 969 [2024-12-02 07:10:46,171 INFO L226 Difference]: Without dead ends: 623 [2024-12-02 07:10:46,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:10:46,172 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 58 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:46,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1140 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:10:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-12-02 07:10:46,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 506. [2024-12-02 07:10:46,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 442 states have (on average 1.3076923076923077) internal successors, (578), 444 states have internal predecessors, (578), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:46,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 694 transitions. [2024-12-02 07:10:46,269 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 694 transitions. Word has length 148 [2024-12-02 07:10:46,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:46,269 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 694 transitions. [2024-12-02 07:10:46,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 694 transitions. [2024-12-02 07:10:46,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:10:46,270 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:46,270 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:10:46,271 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2025334807, now seen corresponding path program 1 times [2024-12-02 07:10:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:46,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949784059] [2024-12-02 07:10:46,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:46,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:48,198 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:48,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:48,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949784059] [2024-12-02 07:10:48,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949784059] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:48,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:48,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:10:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200822726] [2024-12-02 07:10:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:48,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:10:48,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:48,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:10:48,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:10:48,199 INFO L87 Difference]: Start difference. First operand 506 states and 694 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:10:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:49,733 INFO L93 Difference]: Finished difference Result 995 states and 1361 transitions. [2024-12-02 07:10:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:10:49,734 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-12-02 07:10:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:49,736 INFO L225 Difference]: With dead ends: 995 [2024-12-02 07:10:49,736 INFO L226 Difference]: Without dead ends: 649 [2024-12-02 07:10:49,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:10:49,737 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 265 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:49,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 792 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 07:10:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-12-02 07:10:49,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 529. [2024-12-02 07:10:49,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 465 states have (on average 1.303225806451613) internal successors, (606), 467 states have internal predecessors, (606), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 722 transitions. [2024-12-02 07:10:49,792 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 722 transitions. Word has length 148 [2024-12-02 07:10:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:49,792 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 722 transitions. [2024-12-02 07:10:49,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:10:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 722 transitions. [2024-12-02 07:10:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:10:49,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:49,793 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:49,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:10:49,793 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:49,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1324270229, now seen corresponding path program 1 times [2024-12-02 07:10:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555811204] [2024-12-02 07:10:49,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:50,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:50,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555811204] [2024-12-02 07:10:50,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555811204] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:50,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:50,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:10:50,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155632110] [2024-12-02 07:10:50,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:50,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:10:50,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:50,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:10:50,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:10:50,325 INFO L87 Difference]: Start difference. First operand 529 states and 722 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:51,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:10:51,163 INFO L93 Difference]: Finished difference Result 1020 states and 1388 transitions. [2024-12-02 07:10:51,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:10:51,164 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-12-02 07:10:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:10:51,166 INFO L225 Difference]: With dead ends: 1020 [2024-12-02 07:10:51,166 INFO L226 Difference]: Without dead ends: 651 [2024-12-02 07:10:51,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:10:51,168 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 54 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:10:51,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1064 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:10:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-12-02 07:10:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 497. [2024-12-02 07:10:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 433 states have (on average 1.2933025404157044) internal successors, (560), 435 states have internal predecessors, (560), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:10:51,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 676 transitions. [2024-12-02 07:10:51,231 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 676 transitions. Word has length 148 [2024-12-02 07:10:51,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:10:51,231 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 676 transitions. [2024-12-02 07:10:51,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:10:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 676 transitions. [2024-12-02 07:10:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:10:51,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:10:51,232 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:10:51,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:10:51,232 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:10:51,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:10:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash 59652717, now seen corresponding path program 1 times [2024-12-02 07:10:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:10:51,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587108527] [2024-12-02 07:10:51,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:10:51,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:10:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:10:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:10:57,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:10:57,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587108527] [2024-12-02 07:10:57,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587108527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:10:57,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:10:57,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 07:10:57,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515434233] [2024-12-02 07:10:57,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:10:57,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:10:57,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:10:57,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:10:57,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:10:57,324 INFO L87 Difference]: Start difference. First operand 497 states and 676 transitions. Second operand has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 07:11:01,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:01,210 INFO L93 Difference]: Finished difference Result 883 states and 1196 transitions. [2024-12-02 07:11:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:11:01,211 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) Word has length 148 [2024-12-02 07:11:01,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:01,212 INFO L225 Difference]: With dead ends: 883 [2024-12-02 07:11:01,212 INFO L226 Difference]: Without dead ends: 546 [2024-12-02 07:11:01,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=151, Invalid=499, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:11:01,213 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 416 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:01,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 980 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 07:11:01,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-12-02 07:11:01,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 504. [2024-12-02 07:11:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 440 states have (on average 1.290909090909091) internal successors, (568), 442 states have internal predecessors, (568), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:11:01,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 684 transitions. [2024-12-02 07:11:01,268 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 684 transitions. Word has length 148 [2024-12-02 07:11:01,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:01,268 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 684 transitions. [2024-12-02 07:11:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 4.066666666666666) internal successors, (61), 19 states have internal predecessors, (61), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 7 states have call successors, (18) [2024-12-02 07:11:01,269 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 684 transitions. [2024-12-02 07:11:01,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:11:01,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:01,270 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:01,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:11:01,270 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:01,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:01,270 INFO L85 PathProgramCache]: Analyzing trace with hash 760717295, now seen corresponding path program 1 times [2024-12-02 07:11:01,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:01,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713179667] [2024-12-02 07:11:01,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:01,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:03,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:03,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713179667] [2024-12-02 07:11:03,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713179667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:03,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:03,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:11:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964713689] [2024-12-02 07:11:03,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:03,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:11:03,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:03,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:11:03,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:11:03,293 INFO L87 Difference]: Start difference. First operand 504 states and 684 transitions. Second operand has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:04,345 INFO L93 Difference]: Finished difference Result 1212 states and 1638 transitions. [2024-12-02 07:11:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:11:04,345 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-12-02 07:11:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:04,347 INFO L225 Difference]: With dead ends: 1212 [2024-12-02 07:11:04,347 INFO L226 Difference]: Without dead ends: 711 [2024-12-02 07:11:04,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:11:04,349 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 485 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:04,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 464 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:11:04,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-12-02 07:11:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 591. [2024-12-02 07:11:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 529 states have internal predecessors, (675), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:11:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 791 transitions. [2024-12-02 07:11:04,454 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 791 transitions. Word has length 148 [2024-12-02 07:11:04,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:04,455 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 791 transitions. [2024-12-02 07:11:04,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 791 transitions. [2024-12-02 07:11:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:11:04,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:04,456 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:04,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:11:04,457 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:04,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:04,457 INFO L85 PathProgramCache]: Analyzing trace with hash 979572013, now seen corresponding path program 1 times [2024-12-02 07:11:04,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:04,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567524023] [2024-12-02 07:11:04,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:04,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:07,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:07,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567524023] [2024-12-02 07:11:07,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567524023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:07,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:07,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 07:11:07,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326919771] [2024-12-02 07:11:07,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:07,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:11:07,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:07,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:11:07,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:11:07,576 INFO L87 Difference]: Start difference. First operand 591 states and 791 transitions. Second operand has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:09,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:09,772 INFO L93 Difference]: Finished difference Result 1071 states and 1425 transitions. [2024-12-02 07:11:09,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:11:09,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 148 [2024-12-02 07:11:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:09,774 INFO L225 Difference]: With dead ends: 1071 [2024-12-02 07:11:09,774 INFO L226 Difference]: Without dead ends: 640 [2024-12-02 07:11:09,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-12-02 07:11:09,775 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 233 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:09,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1159 Invalid, 1432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 07:11:09,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-12-02 07:11:09,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 584. [2024-12-02 07:11:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 520 states have (on average 1.2826923076923078) internal successors, (667), 522 states have internal predecessors, (667), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:11:09,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 783 transitions. [2024-12-02 07:11:09,838 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 783 transitions. Word has length 148 [2024-12-02 07:11:09,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:09,839 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 783 transitions. [2024-12-02 07:11:09,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.8125) internal successors, (61), 18 states have internal predecessors, (61), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:09,839 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 783 transitions. [2024-12-02 07:11:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:11:09,840 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:09,840 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:09,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:11:09,840 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:09,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:09,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2068856573, now seen corresponding path program 1 times [2024-12-02 07:11:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:09,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380635065] [2024-12-02 07:11:09,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:09,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:11:10,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:10,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380635065] [2024-12-02 07:11:10,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380635065] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:11:10,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39007300] [2024-12-02 07:11:10,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:10,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:11:10,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:11:10,009 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:11:10,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:11:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:10,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:11:10,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:11:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:10,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:11:10,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39007300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:10,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:11:10,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-12-02 07:11:10,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644715960] [2024-12-02 07:11:10,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:10,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:11:10,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:10,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:11:10,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:11:10,347 INFO L87 Difference]: Start difference. First operand 584 states and 783 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:11:10,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:10,428 INFO L93 Difference]: Finished difference Result 1199 states and 1602 transitions. [2024-12-02 07:11:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:11:10,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-12-02 07:11:10,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:10,431 INFO L225 Difference]: With dead ends: 1199 [2024-12-02 07:11:10,431 INFO L226 Difference]: Without dead ends: 618 [2024-12-02 07:11:10,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:11:10,433 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:10,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 876 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:11:10,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-12-02 07:11:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 589. [2024-12-02 07:11:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 525 states have (on average 1.28) internal successors, (672), 527 states have internal predecessors, (672), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:11:10,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 788 transitions. [2024-12-02 07:11:10,525 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 788 transitions. Word has length 149 [2024-12-02 07:11:10,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:10,526 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 788 transitions. [2024-12-02 07:11:10,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:11:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 788 transitions. [2024-12-02 07:11:10,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:11:10,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:10,527 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:10,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 07:11:10,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:11:10,727 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:10,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:10,728 INFO L85 PathProgramCache]: Analyzing trace with hash -621698327, now seen corresponding path program 1 times [2024-12-02 07:11:10,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:10,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755956636] [2024-12-02 07:11:10,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:10,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:13,033 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:13,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:13,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755956636] [2024-12-02 07:11:13,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755956636] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:13,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:13,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:11:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887755] [2024-12-02 07:11:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:13,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:11:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:13,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:11:13,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:11:13,035 INFO L87 Difference]: Start difference. First operand 589 states and 788 transitions. Second operand has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:14,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:14,388 INFO L93 Difference]: Finished difference Result 1128 states and 1480 transitions. [2024-12-02 07:11:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:11:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 149 [2024-12-02 07:11:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:14,391 INFO L225 Difference]: With dead ends: 1128 [2024-12-02 07:11:14,391 INFO L226 Difference]: Without dead ends: 1126 [2024-12-02 07:11:14,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:11:14,392 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 642 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:14,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 632 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:11:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-12-02 07:11:14,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 960. [2024-12-02 07:11:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 896 states have (on average 1.2845982142857142) internal successors, (1151), 898 states have internal predecessors, (1151), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-12-02 07:11:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1267 transitions. [2024-12-02 07:11:14,464 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1267 transitions. Word has length 149 [2024-12-02 07:11:14,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:14,464 INFO L471 AbstractCegarLoop]: Abstraction has 960 states and 1267 transitions. [2024-12-02 07:11:14,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.428571428571429) internal successors, (62), 16 states have internal predecessors, (62), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1267 transitions. [2024-12-02 07:11:14,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 07:11:14,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:14,466 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:14,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:11:14,466 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:14,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:14,466 INFO L85 PathProgramCache]: Analyzing trace with hash 256648277, now seen corresponding path program 1 times [2024-12-02 07:11:14,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:14,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538847402] [2024-12-02 07:11:14,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:18,530 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:18,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:18,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538847402] [2024-12-02 07:11:18,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538847402] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:18,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:18,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:11:18,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115081498] [2024-12-02 07:11:18,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:18,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:11:18,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:18,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:11:18,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:11:18,531 INFO L87 Difference]: Start difference. First operand 960 states and 1267 transitions. Second operand has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:20,207 INFO L93 Difference]: Finished difference Result 1918 states and 2529 transitions. [2024-12-02 07:11:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:11:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 149 [2024-12-02 07:11:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:20,210 INFO L225 Difference]: With dead ends: 1918 [2024-12-02 07:11:20,210 INFO L226 Difference]: Without dead ends: 961 [2024-12-02 07:11:20,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:11:20,211 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 351 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:20,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 485 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:11:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-12-02 07:11:20,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 679. [2024-12-02 07:11:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 638 states have (on average 1.2884012539184952) internal successors, (822), 638 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:20,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 894 transitions. [2024-12-02 07:11:20,267 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 894 transitions. Word has length 149 [2024-12-02 07:11:20,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:20,267 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 894 transitions. [2024-12-02 07:11:20,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.636363636363637) internal successors, (62), 14 states have internal predecessors, (62), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:20,267 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 894 transitions. [2024-12-02 07:11:20,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 07:11:20,268 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:20,268 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:20,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:11:20,268 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:20,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:20,269 INFO L85 PathProgramCache]: Analyzing trace with hash 917240244, now seen corresponding path program 1 times [2024-12-02 07:11:20,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:20,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966797593] [2024-12-02 07:11:20,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:23,916 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:23,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:23,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966797593] [2024-12-02 07:11:23,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966797593] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:23,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:23,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 07:11:23,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173509706] [2024-12-02 07:11:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:23,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 07:11:23,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:23,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 07:11:23,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:11:23,917 INFO L87 Difference]: Start difference. First operand 679 states and 894 transitions. Second operand has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:26,859 INFO L93 Difference]: Finished difference Result 1258 states and 1645 transitions. [2024-12-02 07:11:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 07:11:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 150 [2024-12-02 07:11:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:26,862 INFO L225 Difference]: With dead ends: 1258 [2024-12-02 07:11:26,862 INFO L226 Difference]: Without dead ends: 823 [2024-12-02 07:11:26,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2024-12-02 07:11:26,863 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 552 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:26,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1254 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 07:11:26,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-12-02 07:11:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 693. [2024-12-02 07:11:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 652 states have (on average 1.2852760736196318) internal successors, (838), 652 states have internal predecessors, (838), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 910 transitions. [2024-12-02 07:11:26,947 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 910 transitions. Word has length 150 [2024-12-02 07:11:26,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:26,947 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 910 transitions. [2024-12-02 07:11:26,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 3.5) internal successors, (63), 21 states have internal predecessors, (63), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 910 transitions. [2024-12-02 07:11:26,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 07:11:26,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:26,948 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:26,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:11:26,948 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:26,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1837159540, now seen corresponding path program 1 times [2024-12-02 07:11:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351737176] [2024-12-02 07:11:26,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:28,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351737176] [2024-12-02 07:11:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351737176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:28,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:11:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388097304] [2024-12-02 07:11:28,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:28,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:11:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:28,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:11:28,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:11:28,058 INFO L87 Difference]: Start difference. First operand 693 states and 910 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:11:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:29,535 INFO L93 Difference]: Finished difference Result 1256 states and 1641 transitions. [2024-12-02 07:11:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:11:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 150 [2024-12-02 07:11:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:29,538 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 07:11:29,538 INFO L226 Difference]: Without dead ends: 807 [2024-12-02 07:11:29,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:11:29,539 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 273 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 1102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:29,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1116 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1102 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:11:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-12-02 07:11:29,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 679. [2024-12-02 07:11:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 638 states have (on average 1.2884012539184952) internal successors, (822), 638 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 894 transitions. [2024-12-02 07:11:29,593 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 894 transitions. Word has length 150 [2024-12-02 07:11:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:29,593 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 894 transitions. [2024-12-02 07:11:29,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 14 states have internal predecessors, (63), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:11:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 894 transitions. [2024-12-02 07:11:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 07:11:29,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:29,594 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:29,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:11:29,594 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:29,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash -329264334, now seen corresponding path program 1 times [2024-12-02 07:11:29,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:29,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619279022] [2024-12-02 07:11:29,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:29,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619279022] [2024-12-02 07:11:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619279022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:11:32,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671815781] [2024-12-02 07:11:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:32,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:11:32,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:32,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:11:32,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:11:32,017 INFO L87 Difference]: Start difference. First operand 679 states and 894 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:11:33,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:33,598 INFO L93 Difference]: Finished difference Result 1424 states and 1870 transitions. [2024-12-02 07:11:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:11:33,598 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-12-02 07:11:33,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:33,600 INFO L225 Difference]: With dead ends: 1424 [2024-12-02 07:11:33,600 INFO L226 Difference]: Without dead ends: 748 [2024-12-02 07:11:33,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:11:33,601 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 234 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:33,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 895 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 07:11:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-12-02 07:11:33,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 665. [2024-12-02 07:11:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 624 states have (on average 1.294871794871795) internal successors, (808), 624 states have internal predecessors, (808), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:33,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 880 transitions. [2024-12-02 07:11:33,655 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 880 transitions. Word has length 150 [2024-12-02 07:11:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:33,656 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 880 transitions. [2024-12-02 07:11:33,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:11:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 880 transitions. [2024-12-02 07:11:33,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 07:11:33,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:33,657 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:33,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:11:33,657 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:33,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:33,658 INFO L85 PathProgramCache]: Analyzing trace with hash -463277840, now seen corresponding path program 1 times [2024-12-02 07:11:33,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:33,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665837159] [2024-12-02 07:11:33,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:33,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:35,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:35,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665837159] [2024-12-02 07:11:35,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665837159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:35,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:35,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:11:35,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153775591] [2024-12-02 07:11:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:35,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:11:35,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:35,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:11:35,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:11:35,692 INFO L87 Difference]: Start difference. First operand 665 states and 880 transitions. Second operand has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:36,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:36,795 INFO L93 Difference]: Finished difference Result 1503 states and 1986 transitions. [2024-12-02 07:11:36,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:11:36,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 150 [2024-12-02 07:11:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:36,798 INFO L225 Difference]: With dead ends: 1503 [2024-12-02 07:11:36,799 INFO L226 Difference]: Without dead ends: 841 [2024-12-02 07:11:36,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:11:36,799 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 484 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:36,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 562 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 07:11:36,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-12-02 07:11:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 665. [2024-12-02 07:11:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 624 states have (on average 1.266025641025641) internal successors, (790), 624 states have internal predecessors, (790), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 862 transitions. [2024-12-02 07:11:36,883 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 862 transitions. Word has length 150 [2024-12-02 07:11:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:36,884 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 862 transitions. [2024-12-02 07:11:36,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.25) internal successors, (63), 14 states have internal predecessors, (63), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:11:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 862 transitions. [2024-12-02 07:11:36,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 07:11:36,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:36,885 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:36,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:11:36,885 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:36,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:36,885 INFO L85 PathProgramCache]: Analyzing trace with hash 237786738, now seen corresponding path program 1 times [2024-12-02 07:11:36,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:36,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146111687] [2024-12-02 07:11:36,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:36,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:39,265 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:39,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146111687] [2024-12-02 07:11:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146111687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:39,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:39,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 07:11:39,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960273950] [2024-12-02 07:11:39,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:39,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 07:11:39,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:39,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 07:11:39,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:11:39,266 INFO L87 Difference]: Start difference. First operand 665 states and 862 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:11:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:41,076 INFO L93 Difference]: Finished difference Result 1396 states and 1804 transitions. [2024-12-02 07:11:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:11:41,076 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-12-02 07:11:41,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:41,078 INFO L225 Difference]: With dead ends: 1396 [2024-12-02 07:11:41,078 INFO L226 Difference]: Without dead ends: 734 [2024-12-02 07:11:41,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2024-12-02 07:11:41,079 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 148 mSDsluCounter, 987 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:41,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1109 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 07:11:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-12-02 07:11:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 649. [2024-12-02 07:11:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 608 states have (on average 1.269736842105263) internal successors, (772), 608 states have internal predecessors, (772), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:41,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 844 transitions. [2024-12-02 07:11:41,135 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 844 transitions. Word has length 150 [2024-12-02 07:11:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:41,136 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 844 transitions. [2024-12-02 07:11:41,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 07:11:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 844 transitions. [2024-12-02 07:11:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:11:41,137 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:41,137 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:41,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:11:41,137 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:41,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:41,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1072057838, now seen corresponding path program 1 times [2024-12-02 07:11:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:41,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23581952] [2024-12-02 07:11:41,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:41,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:11:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:11:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:11:47,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23581952] [2024-12-02 07:11:47,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23581952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:11:47,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:11:47,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 07:11:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868769504] [2024-12-02 07:11:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:11:47,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 07:11:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:11:47,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 07:11:47,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:11:47,461 INFO L87 Difference]: Start difference. First operand 649 states and 844 transitions. Second operand has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:11:55,721 INFO L93 Difference]: Finished difference Result 1256 states and 1619 transitions. [2024-12-02 07:11:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:11:55,722 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 151 [2024-12-02 07:11:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:11:55,725 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 07:11:55,725 INFO L226 Difference]: Without dead ends: 821 [2024-12-02 07:11:55,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=273, Invalid=1287, Unknown=0, NotChecked=0, Total=1560 [2024-12-02 07:11:55,726 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 362 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:11:55,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1447 Invalid, 2164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 07:11:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-12-02 07:11:55,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 689. [2024-12-02 07:11:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 648 states have (on average 1.2746913580246915) internal successors, (826), 648 states have internal predecessors, (826), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:11:55,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 898 transitions. [2024-12-02 07:11:55,796 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 898 transitions. Word has length 151 [2024-12-02 07:11:55,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:11:55,796 INFO L471 AbstractCegarLoop]: Abstraction has 689 states and 898 transitions. [2024-12-02 07:11:55,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.3684210526315788) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:11:55,796 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 898 transitions. [2024-12-02 07:11:55,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:11:55,797 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:11:55,797 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:11:55,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:11:55,797 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:11:55,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:11:55,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2013244174, now seen corresponding path program 1 times [2024-12-02 07:11:55,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:11:55,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524172946] [2024-12-02 07:11:55,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:11:55,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:11:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:12:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:12:02,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:12:02,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524172946] [2024-12-02 07:12:02,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524172946] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:12:02,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:12:02,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2024-12-02 07:12:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286818730] [2024-12-02 07:12:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:12:02,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 07:12:02,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:12:02,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 07:12:02,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2024-12-02 07:12:02,101 INFO L87 Difference]: Start difference. First operand 689 states and 898 transitions. Second operand has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:12:11,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:12:11,624 INFO L93 Difference]: Finished difference Result 1276 states and 1654 transitions. [2024-12-02 07:12:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-12-02 07:12:11,625 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 151 [2024-12-02 07:12:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:12:11,627 INFO L225 Difference]: With dead ends: 1276 [2024-12-02 07:12:11,627 INFO L226 Difference]: Without dead ends: 801 [2024-12-02 07:12:11,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=384, Invalid=2066, Unknown=0, NotChecked=0, Total=2450 [2024-12-02 07:12:11,629 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 462 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 3039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:12:11,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 2077 Invalid, 3039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 07:12:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states. [2024-12-02 07:12:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 687. [2024-12-02 07:12:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 646 states have (on average 1.2724458204334366) internal successors, (822), 646 states have internal predecessors, (822), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:12:11,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 894 transitions. [2024-12-02 07:12:11,694 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 894 transitions. Word has length 151 [2024-12-02 07:12:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:12:11,694 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 894 transitions. [2024-12-02 07:12:11,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.6666666666666665) internal successors, (64), 26 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:12:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 894 transitions. [2024-12-02 07:12:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:12:11,695 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:12:11,695 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:12:11,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:12:11,696 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:12:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:12:11,696 INFO L85 PathProgramCache]: Analyzing trace with hash -906512689, now seen corresponding path program 1 times [2024-12-02 07:12:11,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:12:11,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82888798] [2024-12-02 07:12:11,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:12:11,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:12:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:12:14,645 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:12:14,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:12:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82888798] [2024-12-02 07:12:14,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82888798] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:12:14,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217056795] [2024-12-02 07:12:14,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:12:14,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:12:14,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:12:14,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:12:14,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:12:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:12:15,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 88 conjuncts are in the unsatisfiable core [2024-12-02 07:12:15,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:12:15,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2024-12-02 07:12:15,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-12-02 07:12:16,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-12-02 07:12:17,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-12-02 07:12:17,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-12-02 07:12:18,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-12-02 07:12:18,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 43 [2024-12-02 07:12:19,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 36 [2024-12-02 07:12:20,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-12-02 07:12:20,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2024-12-02 07:12:21,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 07:12:21,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 07:12:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:12:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:12:22,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-12-02 07:12:22,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:12:22,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:12:22,245 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-12-02 07:12:22,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 45 [2024-12-02 07:12:22,437 INFO L349 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2024-12-02 07:12:22,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 37 [2024-12-02 07:12:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 69 proven. 421 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-12-02 07:12:22,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:12:26,999 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_11_Pointer~0.offset Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_11_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select |c_#memory_int| c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset)))))) (store .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select (select .cse1 ~WrapperStruct00_var_1_11_Pointer~0.base) ~WrapperStruct00_var_1_11_Pointer~0.offset)))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296)))) is different from false [2024-12-02 07:13:03,500 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3700 Int) (~WrapperStruct00_var_1_11_Pointer~0.offset Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_11_Pointer~0.base Int) (v_ArrVal_3698 Int)) (let ((.cse0 (let ((.cse1 (let ((.cse2 (let ((.cse3 (store |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base) c_~WrapperStruct00_var_1_6_Pointer~0.offset v_ArrVal_3698)))) (store .cse3 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_3700))))) (store .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (- 1) (select (select .cse2 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (* 2 (mod (select (select .cse2 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536)) (select (select .cse2 c_~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset))))))) (store .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select (select .cse1 ~WrapperStruct00_var_1_11_Pointer~0.base) ~WrapperStruct00_var_1_11_Pointer~0.offset)))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296)))) is different from false [2024-12-02 07:13:03,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217056795] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:13:03,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:13:03,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 30 [2024-12-02 07:13:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289999125] [2024-12-02 07:13:03,544 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:13:03,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-12-02 07:13:03,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:13:03,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-12-02 07:13:03,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1010, Unknown=6, NotChecked=134, Total=1332 [2024-12-02 07:13:03,545 INFO L87 Difference]: Start difference. First operand 687 states and 894 transitions. Second operand has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 07:13:09,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:13:09,653 INFO L93 Difference]: Finished difference Result 1797 states and 2334 transitions. [2024-12-02 07:13:09,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-12-02 07:13:09,654 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) Word has length 151 [2024-12-02 07:13:09,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:13:09,656 INFO L225 Difference]: With dead ends: 1797 [2024-12-02 07:13:09,656 INFO L226 Difference]: Without dead ends: 1113 [2024-12-02 07:13:09,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=657, Invalid=3127, Unknown=6, NotChecked=242, Total=4032 [2024-12-02 07:13:09,658 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 423 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 2350 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 2436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:13:09,658 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 1327 Invalid, 2436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2350 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-12-02 07:13:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2024-12-02 07:13:09,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 982. [2024-12-02 07:13:09,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 897 states have (on average 1.2720178372352284) internal successors, (1141), 897 states have internal predecessors, (1141), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:13:09,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1285 transitions. [2024-12-02 07:13:09,836 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1285 transitions. Word has length 151 [2024-12-02 07:13:09,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:13:09,837 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1285 transitions. [2024-12-02 07:13:09,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.75) internal successors, (133), 30 states have internal predecessors, (133), 11 states have call successors, (36), 6 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 07:13:09,837 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1285 transitions. [2024-12-02 07:13:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 07:13:09,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:13:09,838 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:13:09,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 07:13:10,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 07:13:10,038 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:13:10,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:13:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 303152595, now seen corresponding path program 1 times [2024-12-02 07:13:10,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:13:10,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500829611] [2024-12-02 07:13:10,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:10,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:13:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:13:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:13:11,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:13:11,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500829611] [2024-12-02 07:13:11,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500829611] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:13:11,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565396028] [2024-12-02 07:13:11,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:11,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:13:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:13:11,808 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:13:11,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:13:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:13:12,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-12-02 07:13:12,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:13:12,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:13:13,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:13,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:13,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:14,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:14,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:14,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:15,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:15,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:16,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:16,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:13:16,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:16,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:13:16,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:13:16,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:13:16,816 INFO L349 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2024-12-02 07:13:16,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 70 [2024-12-02 07:13:17,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-12-02 07:13:17,124 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 173 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 07:13:17,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:13:21,318 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (< 65535 (mod (select (select (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) (* 2 (mod (select (select |c_#memory_int| ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536)) (* (- 1) (select (select |c_#memory_int| ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-12-02 07:13:25,366 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int) (v_ArrVal_3927 Int)) (< 65535 (mod (select (select (let ((.cse0 (store |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_3927)))) (store .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select .cse0 ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-12-02 07:13:29,617 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_4_Pointer~0.offset Int) (~WrapperStruct00_var_1_4_Pointer~0.base Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int) (v_ArrVal_3926 Int) (v_ArrVal_3927 Int)) (< 65535 (mod (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base) c_~WrapperStruct00_var_1_6_Pointer~0.offset v_ArrVal_3926)))) (store .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_3927))))) (store .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (- 1) (select (select .cse0 ~WrapperStruct00_var_1_4_Pointer~0.base) ~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) (* (mod (select (select .cse0 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2))))) c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 4294967296))) is different from false [2024-12-02 07:13:29,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565396028] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:13:29,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:13:29,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 27 [2024-12-02 07:13:29,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505469459] [2024-12-02 07:13:29,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:13:29,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 07:13:29,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:13:29,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 07:13:29,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=795, Unknown=3, NotChecked=180, Total=1122 [2024-12-02 07:13:29,677 INFO L87 Difference]: Start difference. First operand 982 states and 1285 transitions. Second operand has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 07:13:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:13:34,659 INFO L93 Difference]: Finished difference Result 2074 states and 2675 transitions. [2024-12-02 07:13:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:13:34,660 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 151 [2024-12-02 07:13:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:13:34,663 INFO L225 Difference]: With dead ends: 2074 [2024-12-02 07:13:34,663 INFO L226 Difference]: Without dead ends: 1201 [2024-12-02 07:13:34,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=299, Invalid=1192, Unknown=3, NotChecked=228, Total=1722 [2024-12-02 07:13:34,665 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 290 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:13:34,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 1019 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-12-02 07:13:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-12-02 07:13:34,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 950. [2024-12-02 07:13:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 861 states have (on average 1.2671312427409989) internal successors, (1091), 861 states have internal predecessors, (1091), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:13:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1235 transitions. [2024-12-02 07:13:34,825 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1235 transitions. Word has length 151 [2024-12-02 07:13:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:13:34,825 INFO L471 AbstractCegarLoop]: Abstraction has 950 states and 1235 transitions. [2024-12-02 07:13:34,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.64) internal successors, (116), 27 states have internal predecessors, (116), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 07:13:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1235 transitions. [2024-12-02 07:13:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 07:13:34,826 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:13:34,826 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:13:34,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:13:35,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:13:35,027 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:13:35,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:13:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash -821371719, now seen corresponding path program 1 times [2024-12-02 07:13:35,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:13:35,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750469282] [2024-12-02 07:13:35,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:13:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:13:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:13:41,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:13:41,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750469282] [2024-12-02 07:13:41,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750469282] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:13:41,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:13:41,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 07:13:41,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537719181] [2024-12-02 07:13:41,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:13:41,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 07:13:41,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:13:41,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 07:13:41,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:13:41,459 INFO L87 Difference]: Start difference. First operand 950 states and 1235 transitions. Second operand has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:13:52,113 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 104 DAG size of output: 78 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:13:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:13:55,637 INFO L93 Difference]: Finished difference Result 1507 states and 1951 transitions. [2024-12-02 07:13:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:13:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 152 [2024-12-02 07:13:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:13:55,641 INFO L225 Difference]: With dead ends: 1507 [2024-12-02 07:13:55,641 INFO L226 Difference]: Without dead ends: 1048 [2024-12-02 07:13:55,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=149, Invalid=607, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:13:55,643 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 259 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 1818 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:13:55,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1233 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 07:13:55,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-12-02 07:13:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 936. [2024-12-02 07:13:55,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 847 states have (on average 1.271546635182999) internal successors, (1077), 847 states have internal predecessors, (1077), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:13:55,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1221 transitions. [2024-12-02 07:13:55,818 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1221 transitions. Word has length 152 [2024-12-02 07:13:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:13:55,818 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1221 transitions. [2024-12-02 07:13:55,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.823529411764706) internal successors, (65), 19 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:13:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1221 transitions. [2024-12-02 07:13:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 07:13:55,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:13:55,819 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:13:55,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 07:13:55,819 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:13:55,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:13:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash -254320647, now seen corresponding path program 1 times [2024-12-02 07:13:55,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:13:55,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224632810] [2024-12-02 07:13:55,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:13:55,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:13:55,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:14:03,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:14:03,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224632810] [2024-12-02 07:14:03,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224632810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:14:03,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:14:03,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 07:14:03,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530624115] [2024-12-02 07:14:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:14:03,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 07:14:03,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:14:03,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 07:14:03,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:14:03,007 INFO L87 Difference]: Start difference. First operand 936 states and 1221 transitions. Second operand has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:14:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:14:13,316 INFO L93 Difference]: Finished difference Result 1479 states and 1921 transitions. [2024-12-02 07:14:13,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:14:13,316 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 152 [2024-12-02 07:14:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:14:13,319 INFO L225 Difference]: With dead ends: 1479 [2024-12-02 07:14:13,319 INFO L226 Difference]: Without dead ends: 1034 [2024-12-02 07:14:13,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2024-12-02 07:14:13,320 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 358 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:14:13,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1337 Invalid, 1958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-12-02 07:14:13,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2024-12-02 07:14:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 920. [2024-12-02 07:14:13,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 831 states have (on average 1.2743682310469313) internal successors, (1059), 831 states have internal predecessors, (1059), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:14:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1203 transitions. [2024-12-02 07:14:13,477 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1203 transitions. Word has length 152 [2024-12-02 07:14:13,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:14:13,478 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1203 transitions. [2024-12-02 07:14:13,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.611111111111111) internal successors, (65), 20 states have internal predecessors, (65), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 07:14:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1203 transitions. [2024-12-02 07:14:13,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 07:14:13,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:14:13,478 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:14:13,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 07:14:13,479 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:14:13,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:14:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1446665465, now seen corresponding path program 1 times [2024-12-02 07:14:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:14:13,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903612839] [2024-12-02 07:14:13,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:14:13,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:14:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:14:19,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:14:19,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903612839] [2024-12-02 07:14:19,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903612839] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:14:19,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885224770] [2024-12-02 07:14:19,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:14:19,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:14:19,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:14:19,310 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:14:19,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:14:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:14:19,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-12-02 07:14:19,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:14:20,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:14:21,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:22,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:23,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:24,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:25,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:26,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:27,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:28,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:29,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:30,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:30,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:30,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:14:30,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:30,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:30,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:30,694 INFO L349 Elim1Store]: treesize reduction 49, result has 23.4 percent of original size [2024-12-02 07:14:30,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 50 [2024-12-02 07:14:31,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:14:31,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-12-02 07:14:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 15 proven. 173 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 07:14:31,363 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:15:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885224770] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:15:19,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:15:19,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11] total 29 [2024-12-02 07:15:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177081439] [2024-12-02 07:15:19,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:15:19,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-12-02 07:15:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:15:19,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-12-02 07:15:19,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=957, Unknown=9, NotChecked=0, Total=1122 [2024-12-02 07:15:19,386 INFO L87 Difference]: Start difference. First operand 920 states and 1203 transitions. Second operand has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 07:15:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:33,828 INFO L93 Difference]: Finished difference Result 2243 states and 2885 transitions. [2024-12-02 07:15:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 07:15:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 152 [2024-12-02 07:15:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:33,832 INFO L225 Difference]: With dead ends: 2243 [2024-12-02 07:15:33,832 INFO L226 Difference]: Without dead ends: 1436 [2024-12-02 07:15:33,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 58.7s TimeCoverageRelationStatistics Valid=578, Invalid=2492, Unknown=10, NotChecked=0, Total=3080 [2024-12-02 07:15:33,834 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 691 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:33,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 1289 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-12-02 07:15:33,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2024-12-02 07:15:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1034. [2024-12-02 07:15:34,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.258201058201058) internal successors, (1189), 945 states have internal predecessors, (1189), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:15:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1333 transitions. [2024-12-02 07:15:34,006 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1333 transitions. Word has length 152 [2024-12-02 07:15:34,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:34,006 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1333 transitions. [2024-12-02 07:15:34,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.703703703703703) internal successors, (127), 29 states have internal predecessors, (127), 7 states have call successors, (36), 4 states have call predecessors, (36), 5 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-12-02 07:15:34,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1333 transitions. [2024-12-02 07:15:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 07:15:34,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:34,007 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:15:34,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 07:15:34,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:15:34,207 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:15:34,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:34,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1018027560, now seen corresponding path program 1 times [2024-12-02 07:15:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:15:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835460171] [2024-12-02 07:15:34,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:34,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:15:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:15:43,890 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:15:43,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:15:43,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835460171] [2024-12-02 07:15:43,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835460171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:15:43,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:15:43,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 07:15:43,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458041913] [2024-12-02 07:15:43,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:15:43,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 07:15:43,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:15:43,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 07:15:43,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:15:43,892 INFO L87 Difference]: Start difference. First operand 1034 states and 1333 transitions. Second operand has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:15:49,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:49,106 INFO L93 Difference]: Finished difference Result 1544 states and 1989 transitions. [2024-12-02 07:15:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:15:49,107 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) Word has length 153 [2024-12-02 07:15:49,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:49,109 INFO L225 Difference]: With dead ends: 1544 [2024-12-02 07:15:49,109 INFO L226 Difference]: Without dead ends: 1073 [2024-12-02 07:15:49,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:15:49,110 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 572 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:49,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 658 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 920 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 07:15:49,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2024-12-02 07:15:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1034. [2024-12-02 07:15:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.253968253968254) internal successors, (1185), 945 states have internal predecessors, (1185), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:15:49,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1329 transitions. [2024-12-02 07:15:49,282 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1329 transitions. Word has length 153 [2024-12-02 07:15:49,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:49,282 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1329 transitions. [2024-12-02 07:15:49,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.5) internal successors, (66), 15 states have internal predecessors, (66), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 6 states have call successors, (18) [2024-12-02 07:15:49,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1329 transitions. [2024-12-02 07:15:49,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 07:15:49,283 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:49,283 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:15:49,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 07:15:49,283 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:15:49,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:49,283 INFO L85 PathProgramCache]: Analyzing trace with hash -67449942, now seen corresponding path program 1 times [2024-12-02 07:15:49,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:15:49,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129141235] [2024-12-02 07:15:49,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:49,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:15:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:15:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:15:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:15:51,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129141235] [2024-12-02 07:15:51,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129141235] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:15:51,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:15:51,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 07:15:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531554645] [2024-12-02 07:15:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:15:51,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:15:51,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:15:51,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:15:51,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:15:51,376 INFO L87 Difference]: Start difference. First operand 1034 states and 1329 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:15:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:56,036 INFO L93 Difference]: Finished difference Result 1599 states and 2053 transitions. [2024-12-02 07:15:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 07:15:56,036 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 07:15:56,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:56,039 INFO L225 Difference]: With dead ends: 1599 [2024-12-02 07:15:56,039 INFO L226 Difference]: Without dead ends: 1128 [2024-12-02 07:15:56,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-12-02 07:15:56,040 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 382 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:56,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 989 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 07:15:56,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2024-12-02 07:15:56,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1042. [2024-12-02 07:15:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 953 states have (on average 1.2581322140608604) internal successors, (1199), 953 states have internal predecessors, (1199), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:15:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1343 transitions. [2024-12-02 07:15:56,231 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1343 transitions. Word has length 153 [2024-12-02 07:15:56,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:56,231 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1343 transitions. [2024-12-02 07:15:56,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:15:56,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1343 transitions. [2024-12-02 07:15:56,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 07:15:56,232 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:56,232 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:15:56,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 07:15:56,232 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:15:56,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1515249234, now seen corresponding path program 1 times [2024-12-02 07:15:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:15:56,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116231784] [2024-12-02 07:15:56,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:56,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:15:56,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:15:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:15:57,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:15:57,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116231784] [2024-12-02 07:15:57,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116231784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:15:57,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:15:57,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:15:57,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982637537] [2024-12-02 07:15:57,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:15:57,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:15:57,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:15:57,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:15:57,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:15:57,080 INFO L87 Difference]: Start difference. First operand 1042 states and 1343 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:15:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:15:59,576 INFO L93 Difference]: Finished difference Result 1580 states and 2033 transitions. [2024-12-02 07:15:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:15:59,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-12-02 07:15:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:15:59,579 INFO L225 Difference]: With dead ends: 1580 [2024-12-02 07:15:59,579 INFO L226 Difference]: Without dead ends: 1101 [2024-12-02 07:15:59,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:15:59,580 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 131 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:15:59,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 717 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 07:15:59,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-12-02 07:15:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1034. [2024-12-02 07:15:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 945 states have (on average 1.2518518518518518) internal successors, (1183), 945 states have internal predecessors, (1183), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:15:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1327 transitions. [2024-12-02 07:15:59,747 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1327 transitions. Word has length 153 [2024-12-02 07:15:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:15:59,747 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1327 transitions. [2024-12-02 07:15:59,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 07:15:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1327 transitions. [2024-12-02 07:15:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 07:15:59,748 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:15:59,748 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:15:59,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 07:15:59,748 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:15:59,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:15:59,749 INFO L85 PathProgramCache]: Analyzing trace with hash -563893216, now seen corresponding path program 1 times [2024-12-02 07:15:59,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:15:59,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198647694] [2024-12-02 07:15:59,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:15:59,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:15:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:02,927 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 07:16:02,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:02,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198647694] [2024-12-02 07:16:02,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198647694] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:16:02,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:16:02,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 07:16:02,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587144484] [2024-12-02 07:16:02,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:16:02,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 07:16:02,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:16:02,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 07:16:02,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:16:02,929 INFO L87 Difference]: Start difference. First operand 1034 states and 1327 transitions. Second operand has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:16:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:16:09,072 INFO L93 Difference]: Finished difference Result 1570 states and 2009 transitions. [2024-12-02 07:16:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:16:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 154 [2024-12-02 07:16:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:16:09,075 INFO L225 Difference]: With dead ends: 1570 [2024-12-02 07:16:09,075 INFO L226 Difference]: Without dead ends: 1099 [2024-12-02 07:16:09,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2024-12-02 07:16:09,076 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 237 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:16:09,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 1048 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 07:16:09,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2024-12-02 07:16:09,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1028. [2024-12-02 07:16:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 939 states have (on average 1.2492012779552715) internal successors, (1173), 939 states have internal predecessors, (1173), 72 states have call successors, (72), 16 states have call predecessors, (72), 16 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 07:16:09,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1317 transitions. [2024-12-02 07:16:09,248 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1317 transitions. Word has length 154 [2024-12-02 07:16:09,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:16:09,248 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1317 transitions. [2024-12-02 07:16:09,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.1875) internal successors, (67), 17 states have internal predecessors, (67), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 07:16:09,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1317 transitions. [2024-12-02 07:16:09,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 07:16:09,249 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:16:09,249 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:16:09,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 07:16:09,249 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:16:09,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:16:09,249 INFO L85 PathProgramCache]: Analyzing trace with hash 977273159, now seen corresponding path program 1 times [2024-12-02 07:16:09,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:16:09,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852750727] [2024-12-02 07:16:09,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:09,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:16:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:13,286 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 51 proven. 84 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2024-12-02 07:16:13,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:16:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852750727] [2024-12-02 07:16:13,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852750727] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:16:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165220286] [2024-12-02 07:16:13,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:16:13,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:16:13,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:13,289 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:16:13,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:16:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:16:14,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 100 conjuncts are in the unsatisfiable core [2024-12-02 07:16:14,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:16:15,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:16:18,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:16:20,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:16:21,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:16:22,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:16:24,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:16:25,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:16:28,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 07:16:29,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 07:16:31,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 07:16:32,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2024-12-02 07:16:32,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:16:32,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:16:32,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:16:32,878 INFO L349 Elim1Store]: treesize reduction 120, result has 26.4 percent of original size [2024-12-02 07:16:32,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 69 treesize of output 99 [2024-12-02 07:16:34,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 30 [2024-12-02 07:16:34,609 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 299 proven. 224 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-12-02 07:16:34,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:17:41,123 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4989 Int) (~WrapperStruct00_var_1_3_Pointer~0.base Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (store |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_4989)))) (store .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select .cse1 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select .cse1 ~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset))))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset) 4294967296) (+ (mod (+ (select (select .cse0 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset) (* 4294967295 (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) 4294967296) 1)))) is different from false [2024-12-02 07:17:45,864 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4989 Int) (~WrapperStruct00_var_1_3_Pointer~0.base Int) (v_ArrVal_4988 Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.offset Int) (~WrapperStruct00_var_1_12_Pointer~0.base Int)) (let ((.cse0 (let ((.cse1 (let ((.cse2 (store |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_6_Pointer~0.base) c_~WrapperStruct00_var_1_6_Pointer~0.offset v_ArrVal_4988)))) (store .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset v_ArrVal_4989))))) (store .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (select (select .cse1 ~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset) (* (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) (- 1)) (* (mod (select (select .cse1 ~WrapperStruct00_var_1_12_Pointer~0.base) ~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2))))))) (< (mod (select (select .cse0 c_~WrapperStruct00_var_1_5_Pointer~0.base) c_~WrapperStruct00_var_1_5_Pointer~0.offset) 4294967296) (+ (mod (+ (select (select .cse0 c_~WrapperStruct00_var_1_13_Pointer~0.base) c_~WrapperStruct00_var_1_13_Pointer~0.offset) (* 4294967295 (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset))) 4294967296) 1)))) is different from false [2024-12-02 07:17:45,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165220286] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:17:45,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:17:45,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23] total 37 [2024-12-02 07:17:45,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299029688] [2024-12-02 07:17:45,958 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:17:45,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-12-02 07:17:45,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:17:45,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-12-02 07:17:45,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1337, Unknown=16, NotChecked=154, Total=1722 [2024-12-02 07:17:45,960 INFO L87 Difference]: Start difference. First operand 1028 states and 1317 transitions. Second operand has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) [2024-12-02 07:17:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:17:56,504 INFO L93 Difference]: Finished difference Result 1361 states and 1714 transitions. [2024-12-02 07:17:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 07:17:56,505 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) Word has length 154 [2024-12-02 07:17:56,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:17:56,507 INFO L225 Difference]: With dead ends: 1361 [2024-12-02 07:17:56,507 INFO L226 Difference]: Without dead ends: 410 [2024-12-02 07:17:56,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 79.1s TimeCoverageRelationStatistics Valid=399, Invalid=2043, Unknown=16, NotChecked=194, Total=2652 [2024-12-02 07:17:56,508 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 191 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:17:56,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1068 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-12-02 07:17:56,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-12-02 07:17:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 395. [2024-12-02 07:17:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 342 states have (on average 1.1812865497076024) internal successors, (404), 343 states have internal predecessors, (404), 36 states have call successors, (36), 16 states have call predecessors, (36), 16 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:17:56,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 476 transitions. [2024-12-02 07:17:56,635 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 476 transitions. Word has length 154 [2024-12-02 07:17:56,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:17:56,635 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 476 transitions. [2024-12-02 07:17:56,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 29 states have (on average 5.241379310344827) internal successors, (152), 36 states have internal predecessors, (152), 19 states have call successors, (36), 7 states have call predecessors, (36), 11 states have return successors, (36), 12 states have call predecessors, (36), 19 states have call successors, (36) [2024-12-02 07:17:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 476 transitions. [2024-12-02 07:17:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 07:17:56,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:17:56,636 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:17:56,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 07:17:56,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-02 07:17:56,836 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:17:56,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:17:56,836 INFO L85 PathProgramCache]: Analyzing trace with hash -400842257, now seen corresponding path program 1 times [2024-12-02 07:17:56,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:17:56,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277767191] [2024-12-02 07:17:56,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:17:56,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:17:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:18:01,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:01,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277767191] [2024-12-02 07:18:01,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277767191] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:01,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059206095] [2024-12-02 07:18:01,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:01,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:01,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:01,442 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:01,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 07:18:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:02,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-12-02 07:18:02,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:04,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:18:09,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:11,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:13,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:15,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:17,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:19,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:21,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-12-02 07:18:25,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:18:28,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:18:28,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:18:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:18:29,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:18:29,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-12-02 07:18:30,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:18:30,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:18:30,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:18:30,100 INFO L349 Elim1Store]: treesize reduction 45, result has 19.6 percent of original size [2024-12-02 07:18:30,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 63 [2024-12-02 07:18:30,825 INFO L349 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2024-12-02 07:18:30,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 44 [2024-12-02 07:18:32,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 177 proven. 194 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 07:18:32,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:18:41,006 WARN L851 $PredicateComparison]: unable to prove that (forall ((~WrapperStruct00_var_1_11_Pointer~0.offset Int) (~WrapperStruct00_var_1_3_Pointer~0.offset Int) (~WrapperStruct00_var_1_11_Pointer~0.base Int)) (let ((.cse0 (let ((.cse2 (store |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (+ (* (mod (select (select |c_#memory_int| c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536) 2) (* (- 1) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset)) (select (select |c_#memory_int| c_~WrapperStruct00_var_1_3_Pointer~0.base) ~WrapperStruct00_var_1_3_Pointer~0.offset)))))) (store .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base (store (select .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select (select .cse2 ~WrapperStruct00_var_1_11_Pointer~0.base) ~WrapperStruct00_var_1_11_Pointer~0.offset)))))) (let ((.cse1 (mod (select (select .cse0 c_~WrapperStruct00_var_1_12_Pointer~0.base) c_~WrapperStruct00_var_1_12_Pointer~0.offset) 65536))) (or (not (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset) 65536) .cse1)) (not (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 4294967296) .cse1)))))) is different from false [2024-12-02 07:20:57,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059206095] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:20:57,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:20:57,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 36 [2024-12-02 07:20:57,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48547231] [2024-12-02 07:20:57,744 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:20:57,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 07:20:57,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:57,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 07:20:57,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=360, Invalid=1966, Unknown=30, NotChecked=94, Total=2450 [2024-12-02 07:20:57,745 INFO L87 Difference]: Start difference. First operand 395 states and 476 transitions. Second operand has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 07:21:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:09,449 INFO L93 Difference]: Finished difference Result 730 states and 877 transitions. [2024-12-02 07:21:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 07:21:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) Word has length 155 [2024-12-02 07:21:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:09,451 INFO L225 Difference]: With dead ends: 730 [2024-12-02 07:21:09,451 INFO L226 Difference]: Without dead ends: 421 [2024-12-02 07:21:09,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 153.8s TimeCoverageRelationStatistics Valid=588, Invalid=2692, Unknown=30, NotChecked=112, Total=3422 [2024-12-02 07:21:09,452 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 123 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:09,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 799 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2024-12-02 07:21:09,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-12-02 07:21:09,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 381. [2024-12-02 07:21:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 329 states have (on average 1.1884498480243162) internal successors, (391), 330 states have internal predecessors, (391), 34 states have call successors, (34), 17 states have call predecessors, (34), 17 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:21:09,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 459 transitions. [2024-12-02 07:21:09,565 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 459 transitions. Word has length 155 [2024-12-02 07:21:09,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:09,565 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 459 transitions. [2024-12-02 07:21:09,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 32 states have (on average 4.34375) internal successors, (139), 34 states have internal predecessors, (139), 11 states have call successors, (36), 5 states have call predecessors, (36), 8 states have return successors, (36), 9 states have call predecessors, (36), 11 states have call successors, (36) [2024-12-02 07:21:09,565 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 459 transitions. [2024-12-02 07:21:09,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 07:21:09,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:09,566 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:09,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 07:21:09,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:09,766 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:09,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1848641549, now seen corresponding path program 1 times [2024-12-02 07:21:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655195695] [2024-12-02 07:21:09,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 07:21:17,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:17,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655195695] [2024-12-02 07:21:17,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655195695] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:21:17,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376078757] [2024-12-02 07:21:17,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:17,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:17,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:17,071 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:21:17,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23921a46-6d44-4f1b-baf2-8ce83a2d23b3/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 07:21:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:18,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-12-02 07:21:18,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:21:19,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 07:21:22,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-12-02 07:21:25,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:27,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:30,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:31,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:33,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:35,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:37,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:21:40,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:22:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:02,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:02,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:22:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:11,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:11,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:22:12,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:12,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:12,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-12-02 07:22:20,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:20,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:20,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:20,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:20,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:20,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2024-12-02 07:22:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 07:22:43,580 INFO L349 Elim1Store]: treesize reduction 79, result has 1.3 percent of original size [2024-12-02 07:22:43,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 106 treesize of output 78 [2024-12-02 07:22:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 132 proven. 206 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-12-02 07:22:43,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:23:38,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376078757] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:23:38,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:23:38,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 35 [2024-12-02 07:23:38,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121738558] [2024-12-02 07:23:38,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 07:23:38,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 07:23:38,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:23:38,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 07:23:38,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1528, Unknown=22, NotChecked=0, Total=1806 [2024-12-02 07:23:38,422 INFO L87 Difference]: Start difference. First operand 381 states and 459 transitions. Second operand has 35 states, 31 states have (on average 4.225806451612903) internal successors, (131), 35 states have internal predecessors, (131), 10 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 6 states have call predecessors, (36), 10 states have call successors, (36) [2024-12-02 07:23:50,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:23:54,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:23:58,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:24:02,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:24:06,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:24:10,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:24:14,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:24:18,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []