./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/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 2188f6336d1ca1c280fca67f4da63aab9226326f5793dc0ad50e5520551c6099 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:55:31,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:55:31,663 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:55:31,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:55:31,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:55:31,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:55:31,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:55:31,687 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:55:31,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:55:31,688 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:55:31,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:55:31,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:55:31,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:55:31,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:55:31,688 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:55:31,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:55:31,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:55:31,689 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:55:31,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:31,690 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:31,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:55:31,690 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:55:31,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:55:31,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:55:31,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:55:31,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:55:31,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:55:31,691 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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/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 -> 2188f6336d1ca1c280fca67f4da63aab9226326f5793dc0ad50e5520551c6099 [2024-12-02 07:55:31,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:55:31,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:55:31,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:55:31,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:55:31,933 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:55:31,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i [2024-12-02 07:55:34,570 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/data/400fb5371/0e1eb147c30d4fb0b7db9bec52f0f36a/FLAG13a71dd86 [2024-12-02 07:55:34,779 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:55:34,780 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i [2024-12-02 07:55:34,787 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/data/400fb5371/0e1eb147c30d4fb0b7db9bec52f0f36a/FLAG13a71dd86 [2024-12-02 07:55:35,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/data/400fb5371/0e1eb147c30d4fb0b7db9bec52f0f36a [2024-12-02 07:55:35,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:55:35,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:55:35,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:55:35,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:55:35,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:55:35,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ccfd575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35, skipping insertion in model container [2024-12-02 07:55:35,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,180 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:55:35,281 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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i[916,929] [2024-12-02 07:55:35,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:55:35,331 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:55:35,339 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_fa8b546c-2ef9-4cce-9072-a103fcfd4836/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-27.i[916,929] [2024-12-02 07:55:35,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:55:35,389 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:55:35,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35 WrapperNode [2024-12-02 07:55:35,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:55:35,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:55:35,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:55:35,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:55:35,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,435 INFO L138 Inliner]: procedures = 27, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 427 [2024-12-02 07:55:35,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:55:35,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:55:35,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:55:35,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:55:35,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,463 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 29 writes are split as follows [0, 29]. [2024-12-02 07:55:35,464 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,480 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:55:35,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:55:35,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:55:35,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:55:35,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (1/1) ... [2024-12-02 07:55:35,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:55:35,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:55:35,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:55:35,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:55:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:55:35,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:55:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:55:35,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:55:35,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:55:35,627 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:55:35,628 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:55:35,998 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-12-02 07:55:35,998 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:55:36,009 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:55:36,009 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:55:36,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:55:36 BoogieIcfgContainer [2024-12-02 07:55:36,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:55:36,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:55:36,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:55:36,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:55:36,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:55:35" (1/3) ... [2024-12-02 07:55:36,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb2f857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:55:36, skipping insertion in model container [2024-12-02 07:55:36,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:55:35" (2/3) ... [2024-12-02 07:55:36,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb2f857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:55:36, skipping insertion in model container [2024-12-02 07:55:36,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:55:36" (3/3) ... [2024-12-02 07:55:36,018 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-27.i [2024-12-02 07:55:36,033 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:55:36,035 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-27.i that has 2 procedures, 94 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:55:36,085 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:55:36,104 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;@13820dbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:55:36,104 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:55:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:55:36,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:55:36,119 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:36,119 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:36,120 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:36,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -669687425, now seen corresponding path program 1 times [2024-12-02 07:55:36,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:36,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695297473] [2024-12-02 07:55:36,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:36,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:36,398 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:55:36,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:36,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695297473] [2024-12-02 07:55:36,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695297473] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:55:36,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596894936] [2024-12-02 07:55:36,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:36,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:55:36,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:55:36,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:55:36,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:55:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:36,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:55:36,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:55:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:55:36,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:55:36,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596894936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:36,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:55:36,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:55:36,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653170165] [2024-12-02 07:55:36,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:36,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:55:36,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:36,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:55:36,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:55:36,634 INFO L87 Difference]: Start difference. First operand has 94 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 75 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:36,659 INFO L93 Difference]: Finished difference Result 181 states and 283 transitions. [2024-12-02 07:55:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:55:36,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-12-02 07:55:36,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:36,667 INFO L225 Difference]: With dead ends: 181 [2024-12-02 07:55:36,667 INFO L226 Difference]: Without dead ends: 90 [2024-12-02 07:55:36,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 132 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 07:55:36,673 INFO L435 NwaCegarLoop]: 129 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, 129 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 07:55:36,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-12-02 07:55:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-12-02 07:55:36,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:55:36,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-12-02 07:55:36,709 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 131 [2024-12-02 07:55:36,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:36,709 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-12-02 07:55:36,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:36,710 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-12-02 07:55:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:55:36,712 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:36,712 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:36,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:55:36,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:55:36,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:36,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:36,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1314658275, now seen corresponding path program 1 times [2024-12-02 07:55:36,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:36,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167479886] [2024-12-02 07:55:36,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:36,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:38,475 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:38,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167479886] [2024-12-02 07:55:38,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167479886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:38,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:38,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:55:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80537721] [2024-12-02 07:55:38,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:38,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:55:38,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:38,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:55:38,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:55:38,478 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:38,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:38,788 INFO L93 Difference]: Finished difference Result 264 states and 381 transitions. [2024-12-02 07:55:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:55:38,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-12-02 07:55:38,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:38,791 INFO L225 Difference]: With dead ends: 264 [2024-12-02 07:55:38,791 INFO L226 Difference]: Without dead ends: 177 [2024-12-02 07:55:38,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:38,792 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 77 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:38,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 306 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-12-02 07:55:38,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 173. [2024-12-02 07:55:38,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 136 states have (on average 1.338235294117647) internal successors, (182), 136 states have internal predecessors, (182), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 250 transitions. [2024-12-02 07:55:38,815 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 250 transitions. Word has length 131 [2024-12-02 07:55:38,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:38,815 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 250 transitions. [2024-12-02 07:55:38,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2024-12-02 07:55:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:55:38,817 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:38,818 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:38,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:55:38,818 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:38,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:38,819 INFO L85 PathProgramCache]: Analyzing trace with hash 374285467, now seen corresponding path program 1 times [2024-12-02 07:55:38,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:38,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358509669] [2024-12-02 07:55:38,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:38,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:39,924 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:39,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:39,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358509669] [2024-12-02 07:55:39,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358509669] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:39,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:39,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:39,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339413470] [2024-12-02 07:55:39,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:39,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:39,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:39,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:39,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:39,927 INFO L87 Difference]: Start difference. First operand 173 states and 250 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:40,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:40,320 INFO L93 Difference]: Finished difference Result 473 states and 684 transitions. [2024-12-02 07:55:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:55:40,321 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-12-02 07:55:40,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:40,323 INFO L225 Difference]: With dead ends: 473 [2024-12-02 07:55:40,324 INFO L226 Difference]: Without dead ends: 303 [2024-12-02 07:55:40,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:40,325 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 140 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:40,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 451 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:40,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-12-02 07:55:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2024-12-02 07:55:40,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 244 states have (on average 1.360655737704918) internal successors, (332), 246 states have internal predecessors, (332), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 07:55:40,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 432 transitions. [2024-12-02 07:55:40,356 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 432 transitions. Word has length 131 [2024-12-02 07:55:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:40,357 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 432 transitions. [2024-12-02 07:55:40,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 432 transitions. [2024-12-02 07:55:40,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:55:40,360 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:40,360 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:40,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:55:40,360 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:40,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1431152867, now seen corresponding path program 1 times [2024-12-02 07:55:40,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:40,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993841825] [2024-12-02 07:55:40,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:40,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:41,116 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:41,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993841825] [2024-12-02 07:55:41,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993841825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:41,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991872477] [2024-12-02 07:55:41,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:41,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:41,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:41,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:41,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:41,118 INFO L87 Difference]: Start difference. First operand 299 states and 432 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:41,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:41,517 INFO L93 Difference]: Finished difference Result 586 states and 838 transitions. [2024-12-02 07:55:41,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:55:41,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-12-02 07:55:41,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:41,522 INFO L225 Difference]: With dead ends: 586 [2024-12-02 07:55:41,522 INFO L226 Difference]: Without dead ends: 435 [2024-12-02 07:55:41,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:41,524 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 151 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:41,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 408 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-12-02 07:55:41,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 213. [2024-12-02 07:55:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 174 states have (on average 1.3333333333333333) internal successors, (232), 174 states have internal predecessors, (232), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 300 transitions. [2024-12-02 07:55:41,552 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 300 transitions. Word has length 131 [2024-12-02 07:55:41,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:41,552 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 300 transitions. [2024-12-02 07:55:41,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 300 transitions. [2024-12-02 07:55:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:55:41,554 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:41,554 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:41,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:55:41,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:41,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash -19482105, now seen corresponding path program 1 times [2024-12-02 07:55:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993290096] [2024-12-02 07:55:41,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:41,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:43,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993290096] [2024-12-02 07:55:43,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993290096] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:43,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:43,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:55:43,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821435169] [2024-12-02 07:55:43,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:43,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:55:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:43,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:55:43,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:43,278 INFO L87 Difference]: Start difference. First operand 213 states and 300 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:43,541 INFO L93 Difference]: Finished difference Result 372 states and 523 transitions. [2024-12-02 07:55:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:43,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-12-02 07:55:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:43,543 INFO L225 Difference]: With dead ends: 372 [2024-12-02 07:55:43,543 INFO L226 Difference]: Without dead ends: 264 [2024-12-02 07:55:43,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:43,545 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 54 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:43,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 468 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:55:43,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-12-02 07:55:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 261. [2024-12-02 07:55:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 219 states have (on average 1.3470319634703196) internal successors, (295), 220 states have internal predecessors, (295), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:55:43,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 367 transitions. [2024-12-02 07:55:43,566 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 367 transitions. Word has length 132 [2024-12-02 07:55:43,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:43,566 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 367 transitions. [2024-12-02 07:55:43,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:43,567 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 367 transitions. [2024-12-02 07:55:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:55:43,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:43,569 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:43,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:55:43,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:43,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash -533799174, now seen corresponding path program 1 times [2024-12-02 07:55:43,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:43,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5833353] [2024-12-02 07:55:43,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:44,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:44,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5833353] [2024-12-02 07:55:44,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5833353] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:44,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:44,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:55:44,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652153092] [2024-12-02 07:55:44,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:44,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:55:44,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:44,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:55:44,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:55:44,467 INFO L87 Difference]: Start difference. First operand 261 states and 367 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:44,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:44,733 INFO L93 Difference]: Finished difference Result 525 states and 738 transitions. [2024-12-02 07:55:44,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:55:44,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-12-02 07:55:44,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:44,737 INFO L225 Difference]: With dead ends: 525 [2024-12-02 07:55:44,737 INFO L226 Difference]: Without dead ends: 267 [2024-12-02 07:55:44,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:44,738 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 70 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:44,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 301 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:55:44,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-12-02 07:55:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 261. [2024-12-02 07:55:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 219 states have (on average 1.3424657534246576) internal successors, (294), 220 states have internal predecessors, (294), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:55:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 366 transitions. [2024-12-02 07:55:44,765 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 366 transitions. Word has length 133 [2024-12-02 07:55:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:44,766 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 366 transitions. [2024-12-02 07:55:44,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 366 transitions. [2024-12-02 07:55:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:55:44,768 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:44,768 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:44,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:55:44,768 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:44,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1613770764, now seen corresponding path program 1 times [2024-12-02 07:55:44,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:44,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74936838] [2024-12-02 07:55:44,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:44,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:45,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:45,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74936838] [2024-12-02 07:55:45,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74936838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:45,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:45,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969254393] [2024-12-02 07:55:45,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:45,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:45,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:45,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:45,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:45,484 INFO L87 Difference]: Start difference. First operand 261 states and 366 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:45,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:45,926 INFO L93 Difference]: Finished difference Result 525 states and 736 transitions. [2024-12-02 07:55:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:55:45,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 07:55:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:45,929 INFO L225 Difference]: With dead ends: 525 [2024-12-02 07:55:45,930 INFO L226 Difference]: Without dead ends: 369 [2024-12-02 07:55:45,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:45,931 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 105 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:45,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 413 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:45,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-12-02 07:55:45,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2024-12-02 07:55:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 301 states have (on average 1.3322259136212624) internal successors, (401), 302 states have internal predecessors, (401), 53 states have call successors, (53), 8 states have call predecessors, (53), 8 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 07:55:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 507 transitions. [2024-12-02 07:55:45,964 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 507 transitions. Word has length 134 [2024-12-02 07:55:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:45,965 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 507 transitions. [2024-12-02 07:55:45,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 507 transitions. [2024-12-02 07:55:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:55:45,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:45,967 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:45,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:55:45,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:45,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:45,968 INFO L85 PathProgramCache]: Analyzing trace with hash -875496862, now seen corresponding path program 1 times [2024-12-02 07:55:45,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:45,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280754967] [2024-12-02 07:55:45,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:45,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:46,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:46,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280754967] [2024-12-02 07:55:46,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280754967] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:46,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:46,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620287929] [2024-12-02 07:55:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:46,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:46,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:46,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:46,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:46,231 INFO L87 Difference]: Start difference. First operand 363 states and 507 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:46,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:46,664 INFO L93 Difference]: Finished difference Result 607 states and 847 transitions. [2024-12-02 07:55:46,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:55:46,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-12-02 07:55:46,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:46,666 INFO L225 Difference]: With dead ends: 607 [2024-12-02 07:55:46,666 INFO L226 Difference]: Without dead ends: 323 [2024-12-02 07:55:46,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:46,667 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 101 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:46,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 505 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-12-02 07:55:46,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 215. [2024-12-02 07:55:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 175 states have internal predecessors, (227), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 295 transitions. [2024-12-02 07:55:46,684 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 295 transitions. Word has length 134 [2024-12-02 07:55:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:46,684 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 295 transitions. [2024-12-02 07:55:46,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 295 transitions. [2024-12-02 07:55:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:46,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:46,686 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:46,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:55:46,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:46,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash -2101247231, now seen corresponding path program 1 times [2024-12-02 07:55:46,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:46,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712074206] [2024-12-02 07:55:46,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:46,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:46,734 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:46,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:46,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712074206] [2024-12-02 07:55:46,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712074206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:46,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:46,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:55:46,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359243838] [2024-12-02 07:55:46,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:46,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:55:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:46,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:55:46,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:55:46,736 INFO L87 Difference]: Start difference. First operand 215 states and 295 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:46,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:46,761 INFO L93 Difference]: Finished difference Result 429 states and 591 transitions. [2024-12-02 07:55:46,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:55:46,762 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:55:46,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:46,763 INFO L225 Difference]: With dead ends: 429 [2024-12-02 07:55:46,763 INFO L226 Difference]: Without dead ends: 217 [2024-12-02 07:55:46,764 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 07:55:46,764 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:46,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:55:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-12-02 07:55:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2024-12-02 07:55:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 177 states have (on average 1.2937853107344632) internal successors, (229), 177 states have internal predecessors, (229), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 297 transitions. [2024-12-02 07:55:46,784 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 297 transitions. Word has length 135 [2024-12-02 07:55:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:46,784 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 297 transitions. [2024-12-02 07:55:46,784 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 297 transitions. [2024-12-02 07:55:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:46,786 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:46,786 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:46,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:55:46,786 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:46,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:46,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1708220221, now seen corresponding path program 1 times [2024-12-02 07:55:46,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:46,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924499401] [2024-12-02 07:55:46,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:46,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:47,760 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:47,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:47,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924499401] [2024-12-02 07:55:47,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924499401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:47,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:47,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:55:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729480610] [2024-12-02 07:55:47,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:47,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:55:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:47,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:55:47,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:47,762 INFO L87 Difference]: Start difference. First operand 217 states and 297 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:48,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:48,130 INFO L93 Difference]: Finished difference Result 561 states and 765 transitions. [2024-12-02 07:55:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:55:48,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-12-02 07:55:48,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:48,133 INFO L225 Difference]: With dead ends: 561 [2024-12-02 07:55:48,133 INFO L226 Difference]: Without dead ends: 347 [2024-12-02 07:55:48,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:55:48,134 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 57 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:48,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 498 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:48,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-12-02 07:55:48,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 314. [2024-12-02 07:55:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 271 states have (on average 1.3062730627306274) internal successors, (354), 272 states have internal predecessors, (354), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:55:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 426 transitions. [2024-12-02 07:55:48,152 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 426 transitions. Word has length 135 [2024-12-02 07:55:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:48,153 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 426 transitions. [2024-12-02 07:55:48,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:48,153 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 426 transitions. [2024-12-02 07:55:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:48,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:48,155 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:48,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 07:55:48,155 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:48,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1212961131, now seen corresponding path program 1 times [2024-12-02 07:55:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:48,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45251421] [2024-12-02 07:55:48,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:48,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:49,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45251421] [2024-12-02 07:55:49,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45251421] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:49,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:49,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:55:49,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793217693] [2024-12-02 07:55:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:49,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:55:49,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:49,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:55:49,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:49,236 INFO L87 Difference]: Start difference. First operand 314 states and 426 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:49,711 INFO L93 Difference]: Finished difference Result 722 states and 981 transitions. [2024-12-02 07:55:49,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:55:49,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:55:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:49,713 INFO L225 Difference]: With dead ends: 722 [2024-12-02 07:55:49,713 INFO L226 Difference]: Without dead ends: 411 [2024-12-02 07:55:49,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:55:49,714 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:49,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 779 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-12-02 07:55:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 348. [2024-12-02 07:55:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 305 states have (on average 1.3049180327868852) internal successors, (398), 306 states have internal predecessors, (398), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:55:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 470 transitions. [2024-12-02 07:55:49,730 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 470 transitions. Word has length 135 [2024-12-02 07:55:49,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:49,730 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 470 transitions. [2024-12-02 07:55:49,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 470 transitions. [2024-12-02 07:55:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:49,732 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:49,732 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:49,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 07:55:49,732 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:49,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash -954795693, now seen corresponding path program 1 times [2024-12-02 07:55:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:49,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394021433] [2024-12-02 07:55:49,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:50,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394021433] [2024-12-02 07:55:50,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394021433] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:50,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:50,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:50,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066700084] [2024-12-02 07:55:50,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:50,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:50,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:50,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:50,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:50,496 INFO L87 Difference]: Start difference. First operand 348 states and 470 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:50,806 INFO L93 Difference]: Finished difference Result 763 states and 1029 transitions. [2024-12-02 07:55:50,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:55:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:55:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:50,809 INFO L225 Difference]: With dead ends: 763 [2024-12-02 07:55:50,809 INFO L226 Difference]: Without dead ends: 418 [2024-12-02 07:55:50,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:50,810 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 50 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:50,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 550 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-12-02 07:55:50,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 352. [2024-12-02 07:55:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 309 states have (on average 1.3009708737864079) internal successors, (402), 310 states have internal predecessors, (402), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 07:55:50,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 474 transitions. [2024-12-02 07:55:50,834 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 474 transitions. Word has length 135 [2024-12-02 07:55:50,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:50,835 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 474 transitions. [2024-12-02 07:55:50,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:50,835 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 474 transitions. [2024-12-02 07:55:50,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:50,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:50,837 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:50,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 07:55:50,837 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:50,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:50,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2030609581, now seen corresponding path program 1 times [2024-12-02 07:55:50,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:50,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997425790] [2024-12-02 07:55:50,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:50,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:51,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:51,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997425790] [2024-12-02 07:55:51,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997425790] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:51,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:51,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:55:51,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358005211] [2024-12-02 07:55:51,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:51,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:55:51,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:51,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:55:51,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:51,729 INFO L87 Difference]: Start difference. First operand 352 states and 474 transitions. Second operand has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:52,071 INFO L93 Difference]: Finished difference Result 742 states and 996 transitions. [2024-12-02 07:55:52,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:55:52,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-12-02 07:55:52,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:52,073 INFO L225 Difference]: With dead ends: 742 [2024-12-02 07:55:52,073 INFO L226 Difference]: Without dead ends: 393 [2024-12-02 07:55:52,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:55:52,074 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 53 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:52,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 525 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-12-02 07:55:52,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 321. [2024-12-02 07:55:52,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 280 states have (on average 1.2857142857142858) internal successors, (360), 280 states have internal predecessors, (360), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 428 transitions. [2024-12-02 07:55:52,090 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 428 transitions. Word has length 135 [2024-12-02 07:55:52,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:52,091 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 428 transitions. [2024-12-02 07:55:52,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 428 transitions. [2024-12-02 07:55:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:52,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:52,092 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:52,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 07:55:52,093 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1772444143, now seen corresponding path program 1 times [2024-12-02 07:55:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:52,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591977620] [2024-12-02 07:55:52,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:52,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:52,968 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:52,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:52,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591977620] [2024-12-02 07:55:52,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591977620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:52,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:52,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:55:52,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844126375] [2024-12-02 07:55:52,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:52,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:55:52,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:52,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:55:52,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:55:52,970 INFO L87 Difference]: Start difference. First operand 321 states and 428 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:53,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:53,402 INFO L93 Difference]: Finished difference Result 672 states and 898 transitions. [2024-12-02 07:55:53,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:55:53,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:55:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:53,404 INFO L225 Difference]: With dead ends: 672 [2024-12-02 07:55:53,405 INFO L226 Difference]: Without dead ends: 354 [2024-12-02 07:55:53,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:55:53,406 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 44 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:53,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 959 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-12-02 07:55:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 315. [2024-12-02 07:55:53,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 274 states have (on average 1.2846715328467153) internal successors, (352), 274 states have internal predecessors, (352), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 420 transitions. [2024-12-02 07:55:53,426 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 420 transitions. Word has length 135 [2024-12-02 07:55:53,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:53,426 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 420 transitions. [2024-12-02 07:55:53,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:53,427 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 420 transitions. [2024-12-02 07:55:53,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:53,428 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:53,428 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:53,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 07:55:53,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:53,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:53,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1358589219, now seen corresponding path program 1 times [2024-12-02 07:55:53,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:53,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611105630] [2024-12-02 07:55:53,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:53,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:54,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:54,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611105630] [2024-12-02 07:55:54,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611105630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:54,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:54,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:55:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534709370] [2024-12-02 07:55:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:54,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:55:54,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:54,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:55:54,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:55:54,213 INFO L87 Difference]: Start difference. First operand 315 states and 420 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:54,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:54,630 INFO L93 Difference]: Finished difference Result 813 states and 1081 transitions. [2024-12-02 07:55:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:55:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:55:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:54,633 INFO L225 Difference]: With dead ends: 813 [2024-12-02 07:55:54,633 INFO L226 Difference]: Without dead ends: 501 [2024-12-02 07:55:54,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:55:54,634 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 153 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:54,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 667 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:55:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-12-02 07:55:54,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 335. [2024-12-02 07:55:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 294 states have (on average 1.2789115646258504) internal successors, (376), 294 states have internal predecessors, (376), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 444 transitions. [2024-12-02 07:55:54,657 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 444 transitions. Word has length 135 [2024-12-02 07:55:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:54,657 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 444 transitions. [2024-12-02 07:55:54,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:54,657 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 444 transitions. [2024-12-02 07:55:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:54,659 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:54,659 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:54,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 07:55:54,659 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:54,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:54,660 INFO L85 PathProgramCache]: Analyzing trace with hash 942233371, now seen corresponding path program 1 times [2024-12-02 07:55:54,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:54,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20637302] [2024-12-02 07:55:54,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:54,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:54,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:55,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:55,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20637302] [2024-12-02 07:55:55,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20637302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:55,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:55,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:55,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306047792] [2024-12-02 07:55:55,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:55,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:55,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:55,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:55,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:55,083 INFO L87 Difference]: Start difference. First operand 335 states and 444 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:55,392 INFO L93 Difference]: Finished difference Result 779 states and 1031 transitions. [2024-12-02 07:55:55,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:55:55,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-12-02 07:55:55,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:55,395 INFO L225 Difference]: With dead ends: 779 [2024-12-02 07:55:55,395 INFO L226 Difference]: Without dead ends: 447 [2024-12-02 07:55:55,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:55,396 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 73 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:55,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 400 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:55,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-12-02 07:55:55,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 351. [2024-12-02 07:55:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 310 states have (on average 1.267741935483871) internal successors, (393), 310 states have internal predecessors, (393), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-12-02 07:55:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 461 transitions. [2024-12-02 07:55:55,417 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 461 transitions. Word has length 135 [2024-12-02 07:55:55,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:55,418 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 461 transitions. [2024-12-02 07:55:55,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:55,418 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 461 transitions. [2024-12-02 07:55:55,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:55:55,419 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:55,419 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:55,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 07:55:55,420 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:55,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:55,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1643297949, now seen corresponding path program 1 times [2024-12-02 07:55:55,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:55,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212858891] [2024-12-02 07:55:55,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:55,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:55,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212858891] [2024-12-02 07:55:55,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212858891] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:55,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:55,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:55,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074919078] [2024-12-02 07:55:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:55,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:55,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:55,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:55,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:55,798 INFO L87 Difference]: Start difference. First operand 351 states and 461 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:56,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:56,092 INFO L93 Difference]: Finished difference Result 803 states and 1050 transitions. [2024-12-02 07:55:56,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:55:56,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-12-02 07:55:56,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:56,094 INFO L225 Difference]: With dead ends: 803 [2024-12-02 07:55:56,095 INFO L226 Difference]: Without dead ends: 455 [2024-12-02 07:55:56,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:56,096 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 124 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:56,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 479 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:56,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-12-02 07:55:56,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 451. [2024-12-02 07:55:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 386 states have internal predecessors, (479), 54 states have call successors, (54), 12 states have call predecessors, (54), 12 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-12-02 07:55:56,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 587 transitions. [2024-12-02 07:55:56,129 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 587 transitions. Word has length 135 [2024-12-02 07:55:56,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:56,129 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 587 transitions. [2024-12-02 07:55:56,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:56,130 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 587 transitions. [2024-12-02 07:55:56,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:55:56,131 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:56,131 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:56,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:55:56,131 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:56,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:56,131 INFO L85 PathProgramCache]: Analyzing trace with hash 847971409, now seen corresponding path program 1 times [2024-12-02 07:55:56,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:56,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487050149] [2024-12-02 07:55:56,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:56,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:56,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:56,458 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:56,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:56,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487050149] [2024-12-02 07:55:56,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487050149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:56,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:56,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 07:55:56,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836039950] [2024-12-02 07:55:56,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:56,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:55:56,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:56,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:55:56,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:56,459 INFO L87 Difference]: Start difference. First operand 451 states and 587 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:56,693 INFO L93 Difference]: Finished difference Result 1046 states and 1359 transitions. [2024-12-02 07:55:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:55:56,693 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:55:56,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:56,696 INFO L225 Difference]: With dead ends: 1046 [2024-12-02 07:55:56,696 INFO L226 Difference]: Without dead ends: 598 [2024-12-02 07:55:56,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:55:56,697 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 57 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:56,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 633 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:55:56,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-12-02 07:55:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 594. [2024-12-02 07:55:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 511 states have (on average 1.2407045009784736) internal successors, (634), 515 states have internal predecessors, (634), 66 states have call successors, (66), 16 states have call predecessors, (66), 16 states have return successors, (66), 62 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 07:55:56,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 766 transitions. [2024-12-02 07:55:56,739 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 766 transitions. Word has length 139 [2024-12-02 07:55:56,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:56,740 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 766 transitions. [2024-12-02 07:55:56,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 766 transitions. [2024-12-02 07:55:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:55:56,741 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:56,741 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:56,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 07:55:56,741 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:56,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:56,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1096577190, now seen corresponding path program 1 times [2024-12-02 07:55:56,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:56,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999350581] [2024-12-02 07:55:56,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:56,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:57,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:57,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999350581] [2024-12-02 07:55:57,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999350581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:57,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:57,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 07:55:57,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648433223] [2024-12-02 07:55:57,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:57,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 07:55:57,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:57,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 07:55:57,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 07:55:57,689 INFO L87 Difference]: Start difference. First operand 594 states and 766 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:58,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:58,648 INFO L93 Difference]: Finished difference Result 1513 states and 1939 transitions. [2024-12-02 07:55:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:55:58,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-12-02 07:55:58,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:58,652 INFO L225 Difference]: With dead ends: 1513 [2024-12-02 07:55:58,652 INFO L226 Difference]: Without dead ends: 922 [2024-12-02 07:55:58,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:55:58,654 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 330 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:58,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 401 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 07:55:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2024-12-02 07:55:58,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 816. [2024-12-02 07:55:58,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 717 states have (on average 1.2468619246861925) internal successors, (894), 723 states have internal predecessors, (894), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 07:55:58,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1050 transitions. [2024-12-02 07:55:58,718 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1050 transitions. Word has length 139 [2024-12-02 07:55:58,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:58,718 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 1050 transitions. [2024-12-02 07:55:58,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:58,718 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1050 transitions. [2024-12-02 07:55:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:55:58,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:58,720 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:58,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:55:58,720 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:58,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:58,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1020534997, now seen corresponding path program 1 times [2024-12-02 07:55:58,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:58,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336895167] [2024-12-02 07:55:58,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:58,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:58,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:58,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336895167] [2024-12-02 07:55:58,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336895167] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:58,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:58,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:55:58,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472811906] [2024-12-02 07:55:58,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:58,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:55:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:58,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:55:58,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:55:58,907 INFO L87 Difference]: Start difference. First operand 816 states and 1050 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:59,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:59,119 INFO L93 Difference]: Finished difference Result 1823 states and 2345 transitions. [2024-12-02 07:55:59,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:55:59,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:55:59,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:59,124 INFO L225 Difference]: With dead ends: 1823 [2024-12-02 07:55:59,124 INFO L226 Difference]: Without dead ends: 1010 [2024-12-02 07:55:59,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:59,126 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 53 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:59,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 356 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:55:59,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2024-12-02 07:55:59,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 835. [2024-12-02 07:55:59,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 736 states have (on average 1.2391304347826086) internal successors, (912), 742 states have internal predecessors, (912), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 07:55:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1068 transitions. [2024-12-02 07:55:59,184 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1068 transitions. Word has length 139 [2024-12-02 07:55:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:55:59,185 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1068 transitions. [2024-12-02 07:55:59,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:55:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1068 transitions. [2024-12-02 07:55:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:55:59,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:55:59,186 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:59,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:55:59,187 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:55:59,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:55:59,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1329883700, now seen corresponding path program 1 times [2024-12-02 07:55:59,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:55:59,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351395279] [2024-12-02 07:55:59,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:55:59,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:55:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:55:59,601 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:55:59,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:55:59,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351395279] [2024-12-02 07:55:59,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351395279] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:55:59,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:55:59,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:55:59,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292490508] [2024-12-02 07:55:59,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:55:59,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:55:59,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:55:59,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:55:59,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:55:59,602 INFO L87 Difference]: Start difference. First operand 835 states and 1068 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:55:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:55:59,953 INFO L93 Difference]: Finished difference Result 1875 states and 2394 transitions. [2024-12-02 07:55:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:55:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2024-12-02 07:55:59,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:55:59,958 INFO L225 Difference]: With dead ends: 1875 [2024-12-02 07:55:59,958 INFO L226 Difference]: Without dead ends: 1043 [2024-12-02 07:55:59,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:55:59,964 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 126 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:55:59,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 346 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:55:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-12-02 07:56:00,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 839. [2024-12-02 07:56:00,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 740 states have (on average 1.2378378378378379) internal successors, (916), 746 states have internal predecessors, (916), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 07:56:00,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1072 transitions. [2024-12-02 07:56:00,003 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1072 transitions. Word has length 139 [2024-12-02 07:56:00,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:00,003 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1072 transitions. [2024-12-02 07:56:00,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:00,004 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1072 transitions. [2024-12-02 07:56:00,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:56:00,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:00,004 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:00,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:56:00,005 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:00,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:00,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1953966346, now seen corresponding path program 1 times [2024-12-02 07:56:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171477864] [2024-12-02 07:56:00,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:56:00,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:00,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171477864] [2024-12-02 07:56:00,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171477864] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:56:00,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55812535] [2024-12-02 07:56:00,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:00,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:56:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:56:00,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:56:00,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:56:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:00,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:56:00,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:56:00,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13 [2024-12-02 07:56:00,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13 [2024-12-02 07:56:00,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13 [2024-12-02 07:56:00,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13 [2024-12-02 07:56:00,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13 [2024-12-02 07:56:00,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:56:00,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 42 [2024-12-02 07:56:00,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:56:00,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 12 [2024-12-02 07:56:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 216 proven. 36 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-12-02 07:56:00,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:56:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:56:01,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55812535] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:56:01,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:56:01,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 14 [2024-12-02 07:56:01,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238324860] [2024-12-02 07:56:01,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:56:01,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 07:56:01,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:01,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 07:56:01,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:56:01,031 INFO L87 Difference]: Start difference. First operand 839 states and 1072 transitions. Second operand has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) [2024-12-02 07:56:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:01,597 INFO L93 Difference]: Finished difference Result 1829 states and 2314 transitions. [2024-12-02 07:56:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 07:56:01,598 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) Word has length 139 [2024-12-02 07:56:01,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:01,602 INFO L225 Difference]: With dead ends: 1829 [2024-12-02 07:56:01,602 INFO L226 Difference]: Without dead ends: 993 [2024-12-02 07:56:01,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2024-12-02 07:56:01,606 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 236 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:01,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 267 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:56:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-12-02 07:56:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 851. [2024-12-02 07:56:01,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 744 states have (on average 1.2258064516129032) internal successors, (912), 750 states have internal predecessors, (912), 78 states have call successors, (78), 28 states have call predecessors, (78), 28 states have return successors, (78), 72 states have call predecessors, (78), 78 states have call successors, (78) [2024-12-02 07:56:01,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1068 transitions. [2024-12-02 07:56:01,697 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1068 transitions. Word has length 139 [2024-12-02 07:56:01,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:01,697 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1068 transitions. [2024-12-02 07:56:01,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 8.181818181818182) internal successors, (90), 14 states have internal predecessors, (90), 6 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (43), 3 states have call predecessors, (43), 6 states have call successors, (43) [2024-12-02 07:56:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1068 transitions. [2024-12-02 07:56:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:56:01,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:01,699 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:01,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:56:01,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa8b546c-2ef9-4cce-9072-a103fcfd4836/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:56:01,899 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:01,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:01,900 INFO L85 PathProgramCache]: Analyzing trace with hash -249593030, now seen corresponding path program 1 times [2024-12-02 07:56:01,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:01,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142646429] [2024-12-02 07:56:01,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:01,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:02,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:02,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142646429] [2024-12-02 07:56:02,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142646429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:02,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:02,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:56:02,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253501682] [2024-12-02 07:56:02,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:02,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:56:02,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:02,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:56:02,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:56:02,791 INFO L87 Difference]: Start difference. First operand 851 states and 1068 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:03,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:03,438 INFO L93 Difference]: Finished difference Result 1841 states and 2301 transitions. [2024-12-02 07:56:03,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 07:56:03,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:56:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:03,443 INFO L225 Difference]: With dead ends: 1841 [2024-12-02 07:56:03,443 INFO L226 Difference]: Without dead ends: 993 [2024-12-02 07:56:03,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:56:03,445 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 285 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:03,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 745 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:56:03,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2024-12-02 07:56:03,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 984. [2024-12-02 07:56:03,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 859 states have (on average 1.220023282887078) internal successors, (1048), 868 states have internal predecessors, (1048), 90 states have call successors, (90), 34 states have call predecessors, (90), 34 states have return successors, (90), 81 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 07:56:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1228 transitions. [2024-12-02 07:56:03,565 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1228 transitions. Word has length 139 [2024-12-02 07:56:03,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:03,565 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1228 transitions. [2024-12-02 07:56:03,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1228 transitions. [2024-12-02 07:56:03,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:56:03,567 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:03,567 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:03,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 07:56:03,568 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:03,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash 430465340, now seen corresponding path program 1 times [2024-12-02 07:56:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:03,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279428681] [2024-12-02 07:56:03,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:04,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:04,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279428681] [2024-12-02 07:56:04,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279428681] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:04,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:04,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:56:04,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561324427] [2024-12-02 07:56:04,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:04,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:56:04,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:04,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:56:04,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:56:04,615 INFO L87 Difference]: Start difference. First operand 984 states and 1228 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:05,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:05,115 INFO L93 Difference]: Finished difference Result 1969 states and 2459 transitions. [2024-12-02 07:56:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:56:05,116 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:56:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:05,119 INFO L225 Difference]: With dead ends: 1969 [2024-12-02 07:56:05,119 INFO L226 Difference]: Without dead ends: 1005 [2024-12-02 07:56:05,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-12-02 07:56:05,121 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 49 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:05,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 973 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 07:56:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-12-02 07:56:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 985. [2024-12-02 07:56:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 860 states have (on average 1.2186046511627906) internal successors, (1048), 869 states have internal predecessors, (1048), 90 states have call successors, (90), 34 states have call predecessors, (90), 34 states have return successors, (90), 81 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 07:56:05,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1228 transitions. [2024-12-02 07:56:05,191 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1228 transitions. Word has length 139 [2024-12-02 07:56:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:05,191 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1228 transitions. [2024-12-02 07:56:05,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1228 transitions. [2024-12-02 07:56:05,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 07:56:05,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:05,193 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:05,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 07:56:05,193 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:05,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash -30738312, now seen corresponding path program 1 times [2024-12-02 07:56:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:05,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941018438] [2024-12-02 07:56:05,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:05,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:05,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941018438] [2024-12-02 07:56:05,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941018438] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:05,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:05,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:56:05,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582283930] [2024-12-02 07:56:05,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:05,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:56:05,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:05,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:56:05,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:56:05,693 INFO L87 Difference]: Start difference. First operand 985 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:05,905 INFO L93 Difference]: Finished difference Result 1959 states and 2436 transitions. [2024-12-02 07:56:05,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:56:05,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 139 [2024-12-02 07:56:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:05,908 INFO L225 Difference]: With dead ends: 1959 [2024-12-02 07:56:05,908 INFO L226 Difference]: Without dead ends: 994 [2024-12-02 07:56:05,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:05,909 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 52 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:05,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 384 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:56:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-12-02 07:56:05,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 878. [2024-12-02 07:56:05,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 761 states have (on average 1.2128777923784495) internal successors, (923), 768 states have internal predecessors, (923), 82 states have call successors, (82), 34 states have call predecessors, (82), 34 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 07:56:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1087 transitions. [2024-12-02 07:56:05,962 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1087 transitions. Word has length 139 [2024-12-02 07:56:05,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:05,962 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1087 transitions. [2024-12-02 07:56:05,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:05,963 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1087 transitions. [2024-12-02 07:56:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 07:56:05,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:05,964 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:05,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 07:56:05,964 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:05,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1326103137, now seen corresponding path program 1 times [2024-12-02 07:56:05,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:05,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946675725] [2024-12-02 07:56:05,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:05,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:06,556 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:06,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:06,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946675725] [2024-12-02 07:56:06,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946675725] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:06,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:06,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:56:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528978020] [2024-12-02 07:56:06,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:06,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:56:06,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:06,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:56:06,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:56:06,558 INFO L87 Difference]: Start difference. First operand 878 states and 1087 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:06,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:06,966 INFO L93 Difference]: Finished difference Result 1740 states and 2147 transitions. [2024-12-02 07:56:06,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:56:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 140 [2024-12-02 07:56:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:06,970 INFO L225 Difference]: With dead ends: 1740 [2024-12-02 07:56:06,970 INFO L226 Difference]: Without dead ends: 882 [2024-12-02 07:56:06,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:06,971 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 50 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:06,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 445 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:56:06,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-12-02 07:56:07,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 868. [2024-12-02 07:56:07,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 747 states have (on average 1.2034805890227578) internal successors, (899), 754 states have internal predecessors, (899), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 07:56:07,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1063 transitions. [2024-12-02 07:56:07,026 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1063 transitions. Word has length 140 [2024-12-02 07:56:07,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:07,027 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1063 transitions. [2024-12-02 07:56:07,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:07,027 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1063 transitions. [2024-12-02 07:56:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:56:07,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:07,028 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:07,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:56:07,028 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:07,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:07,028 INFO L85 PathProgramCache]: Analyzing trace with hash 629030269, now seen corresponding path program 1 times [2024-12-02 07:56:07,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:07,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695980567] [2024-12-02 07:56:07,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:07,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:07,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:07,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695980567] [2024-12-02 07:56:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695980567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:07,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:56:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782191454] [2024-12-02 07:56:07,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:07,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:56:07,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:07,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:56:07,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:56:07,235 INFO L87 Difference]: Start difference. First operand 868 states and 1063 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:07,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:07,488 INFO L93 Difference]: Finished difference Result 1916 states and 2335 transitions. [2024-12-02 07:56:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:56:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 141 [2024-12-02 07:56:07,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:07,495 INFO L225 Difference]: With dead ends: 1916 [2024-12-02 07:56:07,495 INFO L226 Difference]: Without dead ends: 1068 [2024-12-02 07:56:07,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:07,496 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 72 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:07,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 343 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:56:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-12-02 07:56:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 908. [2024-12-02 07:56:07,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 787 states have (on average 1.1982210927573063) internal successors, (943), 794 states have internal predecessors, (943), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 07:56:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1107 transitions. [2024-12-02 07:56:07,555 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1107 transitions. Word has length 141 [2024-12-02 07:56:07,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:07,556 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 1107 transitions. [2024-12-02 07:56:07,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1107 transitions. [2024-12-02 07:56:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:56:07,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:07,557 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:07,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 07:56:07,557 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:07,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1279321409, now seen corresponding path program 1 times [2024-12-02 07:56:07,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:07,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607209915] [2024-12-02 07:56:07,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:07,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:08,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:08,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607209915] [2024-12-02 07:56:08,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607209915] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:08,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:08,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:56:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425653499] [2024-12-02 07:56:08,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:08,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:56:08,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:08,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:56:08,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:08,124 INFO L87 Difference]: Start difference. First operand 908 states and 1107 transitions. Second operand has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:08,481 INFO L93 Difference]: Finished difference Result 1775 states and 2161 transitions. [2024-12-02 07:56:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:56:08,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-12-02 07:56:08,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:08,484 INFO L225 Difference]: With dead ends: 1775 [2024-12-02 07:56:08,484 INFO L226 Difference]: Without dead ends: 807 [2024-12-02 07:56:08,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:56:08,485 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 119 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:08,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 370 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:56:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-12-02 07:56:08,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 805. [2024-12-02 07:56:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 684 states have (on average 1.1783625730994152) internal successors, (806), 691 states have internal predecessors, (806), 82 states have call successors, (82), 38 states have call predecessors, (82), 38 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 07:56:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 970 transitions. [2024-12-02 07:56:08,547 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 970 transitions. Word has length 141 [2024-12-02 07:56:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:08,547 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 970 transitions. [2024-12-02 07:56:08,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.8) internal successors, (59), 6 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 970 transitions. [2024-12-02 07:56:08,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 07:56:08,548 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:08,549 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:08,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 07:56:08,549 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:08,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:08,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1162343512, now seen corresponding path program 1 times [2024-12-02 07:56:08,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:08,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821979328] [2024-12-02 07:56:08,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:09,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:09,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821979328] [2024-12-02 07:56:09,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821979328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:09,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:09,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 07:56:09,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124542680] [2024-12-02 07:56:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:09,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 07:56:09,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:09,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 07:56:09,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:56:09,232 INFO L87 Difference]: Start difference. First operand 805 states and 970 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:09,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:09,714 INFO L93 Difference]: Finished difference Result 1141 states and 1350 transitions. [2024-12-02 07:56:09,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 07:56:09,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2024-12-02 07:56:09,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:09,723 INFO L225 Difference]: With dead ends: 1141 [2024-12-02 07:56:09,723 INFO L226 Difference]: Without dead ends: 1139 [2024-12-02 07:56:09,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:56:09,724 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 67 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:09,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 908 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:56:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-12-02 07:56:09,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1135. [2024-12-02 07:56:09,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 954 states have (on average 1.150943396226415) internal successors, (1098), 965 states have internal predecessors, (1098), 122 states have call successors, (122), 58 states have call predecessors, (122), 58 states have return successors, (122), 111 states have call predecessors, (122), 122 states have call successors, (122) [2024-12-02 07:56:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1342 transitions. [2024-12-02 07:56:09,833 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1342 transitions. Word has length 141 [2024-12-02 07:56:09,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:09,833 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1342 transitions. [2024-12-02 07:56:09,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1342 transitions. [2024-12-02 07:56:09,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:56:09,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:09,835 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:09,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 07:56:09,835 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:09,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:09,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1315391000, now seen corresponding path program 1 times [2024-12-02 07:56:09,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:09,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216835528] [2024-12-02 07:56:09,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:09,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:10,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:10,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216835528] [2024-12-02 07:56:10,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216835528] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:10,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:10,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:56:10,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143725521] [2024-12-02 07:56:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:10,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:56:10,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:10,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:56:10,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:10,251 INFO L87 Difference]: Start difference. First operand 1135 states and 1342 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:10,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:10,564 INFO L93 Difference]: Finished difference Result 1978 states and 2343 transitions. [2024-12-02 07:56:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:56:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2024-12-02 07:56:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:10,567 INFO L225 Difference]: With dead ends: 1978 [2024-12-02 07:56:10,567 INFO L226 Difference]: Without dead ends: 863 [2024-12-02 07:56:10,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:56:10,569 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 131 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:10,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 337 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:56:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-12-02 07:56:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 861. [2024-12-02 07:56:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 720 states have (on average 1.136111111111111) internal successors, (818), 727 states have internal predecessors, (818), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:56:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1010 transitions. [2024-12-02 07:56:10,653 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1010 transitions. Word has length 142 [2024-12-02 07:56:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:10,654 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1010 transitions. [2024-12-02 07:56:10,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1010 transitions. [2024-12-02 07:56:10,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 07:56:10,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:10,655 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 07:56:10,656 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2018913394, now seen corresponding path program 1 times [2024-12-02 07:56:10,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:10,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105395688] [2024-12-02 07:56:10,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:10,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:11,256 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:11,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:11,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105395688] [2024-12-02 07:56:11,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105395688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:11,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:11,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:56:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934192658] [2024-12-02 07:56:11,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:11,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:56:11,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:11,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:56:11,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:11,257 INFO L87 Difference]: Start difference. First operand 861 states and 1010 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:11,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:11,628 INFO L93 Difference]: Finished difference Result 1666 states and 1953 transitions. [2024-12-02 07:56:11,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:56:11,629 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 142 [2024-12-02 07:56:11,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:11,631 INFO L225 Difference]: With dead ends: 1666 [2024-12-02 07:56:11,631 INFO L226 Difference]: Without dead ends: 853 [2024-12-02 07:56:11,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:56:11,632 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 51 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:11,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 319 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:56:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-12-02 07:56:11,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 847. [2024-12-02 07:56:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 706 states have (on average 1.1232294617563738) internal successors, (793), 713 states have internal predecessors, (793), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:56:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 985 transitions. [2024-12-02 07:56:11,698 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 985 transitions. Word has length 142 [2024-12-02 07:56:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:11,698 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 985 transitions. [2024-12-02 07:56:11,699 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:56:11,699 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 985 transitions. [2024-12-02 07:56:11,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 07:56:11,699 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:11,700 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:11,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 07:56:11,700 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:11,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash -859846733, now seen corresponding path program 1 times [2024-12-02 07:56:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:11,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316076393] [2024-12-02 07:56:11,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:56:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:56:12,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:56:12,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316076393] [2024-12-02 07:56:12,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316076393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:56:12,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:56:12,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:56:12,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51893788] [2024-12-02 07:56:12,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:56:12,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:56:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:56:12,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:56:12,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:56:12,116 INFO L87 Difference]: Start difference. First operand 847 states and 985 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:12,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:56:12,422 INFO L93 Difference]: Finished difference Result 1591 states and 1851 transitions. [2024-12-02 07:56:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:56:12,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-12-02 07:56:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:56:12,425 INFO L225 Difference]: With dead ends: 1591 [2024-12-02 07:56:12,425 INFO L226 Difference]: Without dead ends: 792 [2024-12-02 07:56:12,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:56:12,427 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 128 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:56:12,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 357 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:56:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2024-12-02 07:56:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 786. [2024-12-02 07:56:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 645 states have (on average 1.1131782945736435) internal successors, (718), 652 states have internal predecessors, (718), 96 states have call successors, (96), 44 states have call predecessors, (96), 44 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-12-02 07:56:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 910 transitions. [2024-12-02 07:56:12,493 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 910 transitions. Word has length 143 [2024-12-02 07:56:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:56:12,493 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 910 transitions. [2024-12-02 07:56:12,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 6 states have internal predecessors, (61), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:56:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 910 transitions. [2024-12-02 07:56:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 07:56:12,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:56:12,494 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:12,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 07:56:12,494 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:56:12,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:56:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 856188912, now seen corresponding path program 1 times [2024-12-02 07:56:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:56:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734545738] [2024-12-02 07:56:12,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:56:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:56:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat