./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/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 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:11:10,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:11:10,582 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:11:10,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:11:10,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:11:10,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:11:10,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:11:10,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:11:10,609 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:11:10,609 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:11:10,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:11:10,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:11:10,610 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:11:10,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:11:10,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:11:10,611 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:11:10,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:10,612 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:11:10,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:10,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:11:10,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:11:10,613 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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/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 -> 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 [2024-12-02 11:11:10,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:11:10,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:11:10,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:11:10,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:11:10,825 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:11:10,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-12-02 11:11:13,439 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/data/676f07903/bb1548fe5a23435583b5ad15a25088c9/FLAG96bddbd16 [2024-12-02 11:11:13,651 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:11:13,652 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-12-02 11:11:13,660 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/data/676f07903/bb1548fe5a23435583b5ad15a25088c9/FLAG96bddbd16 [2024-12-02 11:11:14,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/data/676f07903/bb1548fe5a23435583b5ad15a25088c9 [2024-12-02 11:11:14,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:11:14,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:11:14,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:14,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:11:14,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:11:14,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0129ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14, skipping insertion in model container [2024-12-02 11:11:14,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:11:14,155 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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-12-02 11:11:14,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:14,220 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:11:14,229 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_c55888b7-57b7-4be6-8d4d-80ad318fec5d/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-12-02 11:11:14,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:11:14,275 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:11:14,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14 WrapperNode [2024-12-02 11:11:14,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:11:14,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:14,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:11:14,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:11:14,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,326 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 451 [2024-12-02 11:11:14,326 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:11:14,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:11:14,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:11:14,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:11:14,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,352 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-12-02 11:11:14,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,366 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:11:14,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:11:14,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:11:14,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:11:14,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (1/1) ... [2024-12-02 11:11:14,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:11:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:14,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:11:14,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:11:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:11:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:11:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:11:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:11:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:11:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:11:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:11:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:11:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:11:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:11:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:11:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:11:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:11:14,556 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:11:14,557 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:11:14,930 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-12-02 11:11:14,930 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:11:14,940 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:11:14,940 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:11:14,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:14 BoogieIcfgContainer [2024-12-02 11:11:14,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:11:14,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:11:14,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:11:14,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:11:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:11:14" (1/3) ... [2024-12-02 11:11:14,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f7c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:14, skipping insertion in model container [2024-12-02 11:11:14,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:11:14" (2/3) ... [2024-12-02 11:11:14,946 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f7c725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:14, skipping insertion in model container [2024-12-02 11:11:14,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:14" (3/3) ... [2024-12-02 11:11:14,947 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-32.i [2024-12-02 11:11:14,958 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:11:14,960 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-ap_file-32.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:11:15,005 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:11:15,015 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;@723fd0fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:11:15,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:11:15,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 11:11:15,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 11:11:15,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:15,028 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:15,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:15,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:15,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2092387816, now seen corresponding path program 1 times [2024-12-02 11:11:15,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:15,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405124020] [2024-12-02 11:11:15,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 11:11:15,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:15,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405124020] [2024-12-02 11:11:15,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405124020] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:15,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115160494] [2024-12-02 11:11:15,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:15,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:15,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:15,296 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:15,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:11:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:15,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:11:15,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:15,516 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-12-02 11:11:15,516 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:15,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115160494] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:15,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:15,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:11:15,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790472883] [2024-12-02 11:11:15,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:15,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:11:15,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:15,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:11:15,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:15,541 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:11:15,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:15,562 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-12-02 11:11:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:11:15,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-12-02 11:11:15,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:15,569 INFO L225 Difference]: With dead ends: 191 [2024-12-02 11:11:15,569 INFO L226 Difference]: Without dead ends: 95 [2024-12-02 11:11:15,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:15,574 INFO L435 NwaCegarLoop]: 132 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, 132 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:15,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-12-02 11:11:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-12-02 11:11:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 11:11:15,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-12-02 11:11:15,610 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-12-02 11:11:15,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:15,610 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-12-02 11:11:15,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:11:15,611 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-12-02 11:11:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-02 11:11:15,613 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:15,613 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:15,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:11:15,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:15,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:15,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857908, now seen corresponding path program 1 times [2024-12-02 11:11:15,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:15,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25215100] [2024-12-02 11:11:15,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:15,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:16,125 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:16,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:16,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25215100] [2024-12-02 11:11:16,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25215100] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:16,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:16,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:11:16,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102004118] [2024-12-02 11:11:16,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:16,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:11:16,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:16,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:11:16,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:11:16,127 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:16,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:16,298 INFO L93 Difference]: Finished difference Result 318 states and 444 transitions. [2024-12-02 11:11:16,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:11:16,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-12-02 11:11:16,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:16,302 INFO L225 Difference]: With dead ends: 318 [2024-12-02 11:11:16,302 INFO L226 Difference]: Without dead ends: 226 [2024-12-02 11:11:16,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:11:16,304 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 213 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:16,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 368 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:16,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-12-02 11:11:16,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2024-12-02 11:11:16,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 154 states have internal predecessors, (198), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 11:11:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 270 transitions. [2024-12-02 11:11:16,331 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 270 transitions. Word has length 129 [2024-12-02 11:11:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:16,332 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 270 transitions. [2024-12-02 11:11:16,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 270 transitions. [2024-12-02 11:11:16,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-02 11:11:16,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:16,335 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:16,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:11:16,335 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:16,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:16,336 INFO L85 PathProgramCache]: Analyzing trace with hash 732352654, now seen corresponding path program 1 times [2024-12-02 11:11:16,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:16,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122524588] [2024-12-02 11:11:16,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:16,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:17,695 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:17,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:17,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122524588] [2024-12-02 11:11:17,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122524588] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:17,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:17,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:11:17,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705252582] [2024-12-02 11:11:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:17,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:11:17,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:17,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:11:17,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:11:17,698 INFO L87 Difference]: Start difference. First operand 193 states and 270 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:18,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:18,434 INFO L93 Difference]: Finished difference Result 543 states and 762 transitions. [2024-12-02 11:11:18,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:11:18,435 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-12-02 11:11:18,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:18,438 INFO L225 Difference]: With dead ends: 543 [2024-12-02 11:11:18,438 INFO L226 Difference]: Without dead ends: 353 [2024-12-02 11:11:18,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:11:18,440 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:18,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 702 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:11:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-12-02 11:11:18,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2024-12-02 11:11:18,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 286 states have internal predecessors, (369), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 11:11:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 489 transitions. [2024-12-02 11:11:18,490 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 489 transitions. Word has length 137 [2024-12-02 11:11:18,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:18,491 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 489 transitions. [2024-12-02 11:11:18,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 489 transitions. [2024-12-02 11:11:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:11:18,493 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:18,493 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:18,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:11:18,494 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:18,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1144659733, now seen corresponding path program 1 times [2024-12-02 11:11:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:18,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183960834] [2024-12-02 11:11:18,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:18,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183960834] [2024-12-02 11:11:22,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183960834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:22,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:22,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 11:11:22,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799798091] [2024-12-02 11:11:22,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:22,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 11:11:22,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:22,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 11:11:22,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:11:22,109 INFO L87 Difference]: Start difference. First operand 349 states and 489 transitions. Second operand has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:11:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:26,863 INFO L93 Difference]: Finished difference Result 860 states and 1188 transitions. [2024-12-02 11:11:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 11:11:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 139 [2024-12-02 11:11:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:26,868 INFO L225 Difference]: With dead ends: 860 [2024-12-02 11:11:26,868 INFO L226 Difference]: Without dead ends: 514 [2024-12-02 11:11:26,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=234, Invalid=1098, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 11:11:26,870 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 749 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 1628 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:26,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1191 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1628 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 11:11:26,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-12-02 11:11:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 447. [2024-12-02 11:11:26,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 359 states have (on average 1.2785515320334262) internal successors, (459), 363 states have internal predecessors, (459), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 11:11:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 619 transitions. [2024-12-02 11:11:26,922 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 619 transitions. Word has length 139 [2024-12-02 11:11:26,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:26,923 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 619 transitions. [2024-12-02 11:11:26,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:11:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 619 transitions. [2024-12-02 11:11:26,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:11:26,925 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:26,925 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:26,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:11:26,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:26,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:26,926 INFO L85 PathProgramCache]: Analyzing trace with hash 982324889, now seen corresponding path program 1 times [2024-12-02 11:11:26,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:26,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131914676] [2024-12-02 11:11:26,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:26,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:27,116 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 11:11:27,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131914676] [2024-12-02 11:11:27,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131914676] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:27,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960830165] [2024-12-02 11:11:27,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:27,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:27,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:27,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:27,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:11:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:27,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 11:11:27,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:27,319 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:27,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:27,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960830165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:27,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:27,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 11:11:27,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535406803] [2024-12-02 11:11:27,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:27,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:27,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:27,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:27,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:27,321 INFO L87 Difference]: Start difference. First operand 447 states and 619 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:27,383 INFO L93 Difference]: Finished difference Result 889 states and 1230 transitions. [2024-12-02 11:11:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:11:27,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-12-02 11:11:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:27,387 INFO L225 Difference]: With dead ends: 889 [2024-12-02 11:11:27,388 INFO L226 Difference]: Without dead ends: 462 [2024-12-02 11:11:27,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:27,390 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:27,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-12-02 11:11:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-12-02 11:11:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 374 states have (on average 1.267379679144385) internal successors, (474), 378 states have internal predecessors, (474), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-12-02 11:11:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 634 transitions. [2024-12-02 11:11:27,435 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 634 transitions. Word has length 139 [2024-12-02 11:11:27,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:27,436 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 634 transitions. [2024-12-02 11:11:27,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:27,436 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 634 transitions. [2024-12-02 11:11:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-12-02 11:11:27,443 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:27,443 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:27,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:11:27,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:27,644 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:27,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:27,645 INFO L85 PathProgramCache]: Analyzing trace with hash -932708075, now seen corresponding path program 1 times [2024-12-02 11:11:27,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:27,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273879210] [2024-12-02 11:11:27,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:27,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:29,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:29,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273879210] [2024-12-02 11:11:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273879210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:29,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 11:11:29,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235893611] [2024-12-02 11:11:29,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:29,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 11:11:29,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:29,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 11:11:29,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:11:29,213 INFO L87 Difference]: Start difference. First operand 462 states and 634 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:31,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:31,490 INFO L93 Difference]: Finished difference Result 991 states and 1348 transitions. [2024-12-02 11:11:31,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:11:31,491 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-12-02 11:11:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:31,493 INFO L225 Difference]: With dead ends: 991 [2024-12-02 11:11:31,493 INFO L226 Difference]: Without dead ends: 549 [2024-12-02 11:11:31,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:11:31,495 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 393 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:31,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1140 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 11:11:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-12-02 11:11:31,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 381. [2024-12-02 11:11:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 316 states have internal predecessors, (400), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-12-02 11:11:31,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 520 transitions. [2024-12-02 11:11:31,535 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 520 transitions. Word has length 139 [2024-12-02 11:11:31,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:31,535 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 520 transitions. [2024-12-02 11:11:31,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:31,535 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 520 transitions. [2024-12-02 11:11:31,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 11:11:31,536 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:31,536 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:31,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:11:31,537 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:31,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:31,537 INFO L85 PathProgramCache]: Analyzing trace with hash 905958465, now seen corresponding path program 1 times [2024-12-02 11:11:31,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:31,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257468594] [2024-12-02 11:11:31,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:33,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:33,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257468594] [2024-12-02 11:11:33,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257468594] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:33,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:33,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 11:11:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996238617] [2024-12-02 11:11:33,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:33,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 11:11:33,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:33,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 11:11:33,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:11:33,846 INFO L87 Difference]: Start difference. First operand 381 states and 520 transitions. Second operand has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:11:41,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:11:46,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:11:46,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:46,918 INFO L93 Difference]: Finished difference Result 745 states and 1009 transitions. [2024-12-02 11:11:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:11:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-12-02 11:11:46,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:46,921 INFO L225 Difference]: With dead ends: 745 [2024-12-02 11:11:46,921 INFO L226 Difference]: Without dead ends: 572 [2024-12-02 11:11:46,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=217, Invalid=839, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 11:11:46,922 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 904 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 245 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:46,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1162 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1335 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2024-12-02 11:11:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-12-02 11:11:46,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 451. [2024-12-02 11:11:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 370 states have (on average 1.2648648648648648) internal successors, (468), 373 states have internal predecessors, (468), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 11:11:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 612 transitions. [2024-12-02 11:11:46,978 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 612 transitions. Word has length 140 [2024-12-02 11:11:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:46,978 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 612 transitions. [2024-12-02 11:11:46,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:11:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 612 transitions. [2024-12-02 11:11:46,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 11:11:46,979 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:46,980 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:46,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:11:46,980 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:46,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:46,980 INFO L85 PathProgramCache]: Analyzing trace with hash -422264557, now seen corresponding path program 1 times [2024-12-02 11:11:46,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:46,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831694687] [2024-12-02 11:11:46,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:46,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:48,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:48,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831694687] [2024-12-02 11:11:48,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831694687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:48,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:48,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 11:11:48,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869651649] [2024-12-02 11:11:48,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:48,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 11:11:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:48,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 11:11:48,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:11:48,125 INFO L87 Difference]: Start difference. First operand 451 states and 612 transitions. Second operand has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:50,048 INFO L93 Difference]: Finished difference Result 1011 states and 1372 transitions. [2024-12-02 11:11:50,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:11:50,049 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 140 [2024-12-02 11:11:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:50,052 INFO L225 Difference]: With dead ends: 1011 [2024-12-02 11:11:50,052 INFO L226 Difference]: Without dead ends: 563 [2024-12-02 11:11:50,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:11:50,054 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 272 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 851 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:50,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 1050 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 851 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:11:50,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-12-02 11:11:50,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 466. [2024-12-02 11:11:50,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 388 states have internal predecessors, (491), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 11:11:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 635 transitions. [2024-12-02 11:11:50,155 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 635 transitions. Word has length 140 [2024-12-02 11:11:50,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:50,155 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 635 transitions. [2024-12-02 11:11:50,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 15 states have internal predecessors, (53), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 635 transitions. [2024-12-02 11:11:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:11:50,157 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:50,157 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:50,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:11:50,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:50,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:50,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1228664258, now seen corresponding path program 1 times [2024-12-02 11:11:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:50,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92109316] [2024-12-02 11:11:50,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:50,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:50,930 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:50,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:50,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92109316] [2024-12-02 11:11:50,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92109316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:50,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:50,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:11:50,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027750109] [2024-12-02 11:11:50,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:50,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:11:50,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:50,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:11:50,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:11:50,932 INFO L87 Difference]: Start difference. First operand 466 states and 635 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:51,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:51,779 INFO L93 Difference]: Finished difference Result 1105 states and 1501 transitions. [2024-12-02 11:11:51,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:11:51,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-12-02 11:11:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:51,783 INFO L225 Difference]: With dead ends: 1105 [2024-12-02 11:11:51,783 INFO L226 Difference]: Without dead ends: 642 [2024-12-02 11:11:51,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:11:51,785 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 347 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:51,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 549 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:11:51,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-12-02 11:11:51,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 504. [2024-12-02 11:11:51,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 423 states have (on average 1.2789598108747045) internal successors, (541), 426 states have internal predecessors, (541), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 11:11:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 685 transitions. [2024-12-02 11:11:51,848 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 685 transitions. Word has length 141 [2024-12-02 11:11:51,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:51,848 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 685 transitions. [2024-12-02 11:11:51,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:11:51,848 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 685 transitions. [2024-12-02 11:11:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:11:51,849 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:51,849 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:51,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:11:51,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:51,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:51,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1911355907, now seen corresponding path program 1 times [2024-12-02 11:11:51,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:51,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017878305] [2024-12-02 11:11:51,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:51,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:52,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:52,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017878305] [2024-12-02 11:11:52,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017878305] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:52,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:52,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:11:52,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881093072] [2024-12-02 11:11:52,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:52,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:11:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:52,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:11:52,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:11:52,148 INFO L87 Difference]: Start difference. First operand 504 states and 685 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:52,438 INFO L93 Difference]: Finished difference Result 795 states and 1053 transitions. [2024-12-02 11:11:52,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:52,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-12-02 11:11:52,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:52,442 INFO L225 Difference]: With dead ends: 795 [2024-12-02 11:11:52,442 INFO L226 Difference]: Without dead ends: 793 [2024-12-02 11:11:52,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:11:52,443 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 51 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:52,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 810 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:11:52,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-12-02 11:11:52,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 786. [2024-12-02 11:11:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 680 states have (on average 1.2602941176470588) internal successors, (857), 688 states have internal predecessors, (857), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 11:11:52,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1041 transitions. [2024-12-02 11:11:52,579 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1041 transitions. Word has length 141 [2024-12-02 11:11:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:52,579 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1041 transitions. [2024-12-02 11:11:52,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:11:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1041 transitions. [2024-12-02 11:11:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:11:52,580 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:52,580 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:52,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:11:52,580 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:52,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:52,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1376374685, now seen corresponding path program 1 times [2024-12-02 11:11:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:52,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928189388] [2024-12-02 11:11:52,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:52,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:57,185 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:11:57,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:57,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928189388] [2024-12-02 11:11:57,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928189388] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:57,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:57,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 11:11:57,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310709229] [2024-12-02 11:11:57,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:57,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 11:11:57,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:57,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 11:11:57,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:11:57,187 INFO L87 Difference]: Start difference. First operand 786 states and 1041 transitions. Second operand has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:12:09,470 WARN L286 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 135 DAG size of output: 131 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:12:13,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:18,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:29,114 WARN L286 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 189 DAG size of output: 185 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:12:32,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:35,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:44,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:48,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:12:49,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:13:02,915 WARN L286 SmtUtils]: Spent 11.48s on a formula simplification. DAG size of input: 150 DAG size of output: 144 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:13:06,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:13:12,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:13:25,678 WARN L286 SmtUtils]: Spent 12.81s on a formula simplification. DAG size of input: 154 DAG size of output: 148 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:13:43,709 WARN L286 SmtUtils]: Spent 13.41s on a formula simplification. DAG size of input: 161 DAG size of output: 155 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:13:48,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:07,189 WARN L286 SmtUtils]: Spent 14.50s on a formula simplification. DAG size of input: 166 DAG size of output: 160 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:14:09,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:15,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:20,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:35,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:38,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:45,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:49,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:51,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:53,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:56,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:00,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:03,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:07,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:10,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:13,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:17,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:19,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:20,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:22,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:27,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:30,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:33,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:39,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:41,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:44,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:46,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:15:51,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:00,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:01,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:03,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:07,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:11,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:14,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:16,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:28,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:32,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:39,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:45,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:52,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:16:52,581 INFO L93 Difference]: Finished difference Result 1740 states and 2293 transitions. [2024-12-02 11:16:52,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 11:16:52,582 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 141 [2024-12-02 11:16:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:16:52,585 INFO L225 Difference]: With dead ends: 1740 [2024-12-02 11:16:52,585 INFO L226 Difference]: Without dead ends: 957 [2024-12-02 11:16:52,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=248, Invalid=1232, Unknown=2, NotChecked=0, Total=1482 [2024-12-02 11:16:52,586 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 596 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 2430 mSolverCounterSat, 103 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 196.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2430 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 197.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:16:52,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 1867 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2430 Invalid, 11 Unknown, 0 Unchecked, 197.3s Time] [2024-12-02 11:16:52,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2024-12-02 11:16:52,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 791. [2024-12-02 11:16:52,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 685 states have (on average 1.2583941605839417) internal successors, (862), 693 states have internal predecessors, (862), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-12-02 11:16:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1046 transitions. [2024-12-02 11:16:52,784 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1046 transitions. Word has length 141 [2024-12-02 11:16:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:16:52,784 INFO L471 AbstractCegarLoop]: Abstraction has 791 states and 1046 transitions. [2024-12-02 11:16:52,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 21 states have internal predecessors, (54), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:16:52,784 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1046 transitions. [2024-12-02 11:16:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:16:52,785 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:16:52,785 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:16:52,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:16:52,786 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:16:52,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:16:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash 331365611, now seen corresponding path program 1 times [2024-12-02 11:16:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:16:52,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001655041] [2024-12-02 11:16:52,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:16:52,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:16:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:16:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:16:55,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:16:55,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001655041] [2024-12-02 11:16:55,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001655041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:16:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:16:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 11:16:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168831428] [2024-12-02 11:16:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:16:55,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 11:16:55,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:16:55,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 11:16:55,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:16:55,515 INFO L87 Difference]: Start difference. First operand 791 states and 1046 transitions. Second operand has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:17:01,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:17:16,241 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 130 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:17:28,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:17:34,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:17:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:17:50,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:17:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:17:54,032 INFO L93 Difference]: Finished difference Result 1491 states and 1968 transitions. [2024-12-02 11:17:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:17:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-12-02 11:17:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:17:54,035 INFO L225 Difference]: With dead ends: 1491 [2024-12-02 11:17:54,035 INFO L226 Difference]: Without dead ends: 1041 [2024-12-02 11:17:54,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2024-12-02 11:17:54,036 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 627 mSDsluCounter, 1117 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 152 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:17:54,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1319 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 1307 Invalid, 2 Unknown, 0 Unchecked, 33.3s Time] [2024-12-02 11:17:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-12-02 11:17:54,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 919. [2024-12-02 11:17:54,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 788 states have (on average 1.25) internal successors, (985), 798 states have internal predecessors, (985), 112 states have call successors, (112), 18 states have call predecessors, (112), 18 states have return successors, (112), 102 states have call predecessors, (112), 112 states have call successors, (112) [2024-12-02 11:17:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2024-12-02 11:17:54,224 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 141 [2024-12-02 11:17:54,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:17:54,224 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2024-12-02 11:17:54,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.375) internal successors, (54), 17 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:17:54,224 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2024-12-02 11:17:54,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:17:54,226 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:17:54,226 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:17:54,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:17:54,226 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:17:54,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:17:54,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1357578131, now seen corresponding path program 1 times [2024-12-02 11:17:54,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:17:54,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210320060] [2024-12-02 11:17:54,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:17:54,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:17:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:17:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:17:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:17:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210320060] [2024-12-02 11:17:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210320060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:17:56,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:17:56,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 11:17:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657194906] [2024-12-02 11:17:56,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:17:56,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:17:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:17:56,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:17:56,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:17:56,415 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:00,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:00,714 INFO L93 Difference]: Finished difference Result 1888 states and 2482 transitions. [2024-12-02 11:18:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:18:00,715 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-12-02 11:18:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:00,717 INFO L225 Difference]: With dead ends: 1888 [2024-12-02 11:18:00,717 INFO L226 Difference]: Without dead ends: 972 [2024-12-02 11:18:00,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2024-12-02 11:18:00,719 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 538 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:00,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1318 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 11:18:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2024-12-02 11:18:00,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 926. [2024-12-02 11:18:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 790 states have (on average 1.2468354430379747) internal successors, (985), 800 states have internal predecessors, (985), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 11:18:00,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1217 transitions. [2024-12-02 11:18:00,910 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1217 transitions. Word has length 141 [2024-12-02 11:18:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:00,910 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1217 transitions. [2024-12-02 11:18:00,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1217 transitions. [2024-12-02 11:18:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-12-02 11:18:00,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:00,912 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:00,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:18:00,912 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:00,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1250866724, now seen corresponding path program 1 times [2024-12-02 11:18:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769919533] [2024-12-02 11:18:00,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:02,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:02,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769919533] [2024-12-02 11:18:02,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769919533] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:02,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:02,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 11:18:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154752616] [2024-12-02 11:18:02,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:02,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:18:02,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:02,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:18:02,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:18:02,094 INFO L87 Difference]: Start difference. First operand 926 states and 1217 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:04,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:04,782 INFO L93 Difference]: Finished difference Result 1865 states and 2446 transitions. [2024-12-02 11:18:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:18:04,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-12-02 11:18:04,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:04,785 INFO L225 Difference]: With dead ends: 1865 [2024-12-02 11:18:04,785 INFO L226 Difference]: Without dead ends: 942 [2024-12-02 11:18:04,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2024-12-02 11:18:04,787 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 242 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:04,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1718 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 11:18:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-12-02 11:18:04,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 922. [2024-12-02 11:18:04,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 786 states have (on average 1.243002544529262) internal successors, (977), 796 states have internal predecessors, (977), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 11:18:04,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1209 transitions. [2024-12-02 11:18:04,969 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1209 transitions. Word has length 141 [2024-12-02 11:18:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:04,970 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1209 transitions. [2024-12-02 11:18:04,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:04,970 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1209 transitions. [2024-12-02 11:18:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 11:18:04,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:04,971 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:04,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:18:04,971 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:04,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:04,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2022448247, now seen corresponding path program 1 times [2024-12-02 11:18:04,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:04,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741721296] [2024-12-02 11:18:04,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:04,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:07,558 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:07,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:07,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741721296] [2024-12-02 11:18:07,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741721296] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:07,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:07,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 11:18:07,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183316613] [2024-12-02 11:18:07,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:07,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 11:18:07,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:07,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 11:18:07,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:18:07,559 INFO L87 Difference]: Start difference. First operand 922 states and 1209 transitions. Second operand has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:18:12,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:12,941 INFO L93 Difference]: Finished difference Result 1957 states and 2560 transitions. [2024-12-02 11:18:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:18:12,941 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2024-12-02 11:18:12,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:12,945 INFO L225 Difference]: With dead ends: 1957 [2024-12-02 11:18:12,945 INFO L226 Difference]: Without dead ends: 1038 [2024-12-02 11:18:12,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=228, Invalid=962, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:18:12,946 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 490 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1706 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:12,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1405 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1706 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 11:18:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-12-02 11:18:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 912. [2024-12-02 11:18:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 912 states, 776 states have (on average 1.2435567010309279) internal successors, (965), 786 states have internal predecessors, (965), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 106 states have call predecessors, (116), 116 states have call successors, (116) [2024-12-02 11:18:13,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1197 transitions. [2024-12-02 11:18:13,137 INFO L78 Accepts]: Start accepts. Automaton has 912 states and 1197 transitions. Word has length 142 [2024-12-02 11:18:13,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:13,137 INFO L471 AbstractCegarLoop]: Abstraction has 912 states and 1197 transitions. [2024-12-02 11:18:13,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 21 states have internal predecessors, (55), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-12-02 11:18:13,137 INFO L276 IsEmpty]: Start isEmpty. Operand 912 states and 1197 transitions. [2024-12-02 11:18:13,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 11:18:13,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:13,138 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:13,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:18:13,139 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:13,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:13,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1307651178, now seen corresponding path program 1 times [2024-12-02 11:18:13,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:13,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965168243] [2024-12-02 11:18:13,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:13,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:13,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:13,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965168243] [2024-12-02 11:18:13,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965168243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:13,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:13,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:18:13,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279319488] [2024-12-02 11:18:13,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:13,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:18:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:13,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:18:13,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:18:13,376 INFO L87 Difference]: Start difference. First operand 912 states and 1197 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:13,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:13,774 INFO L93 Difference]: Finished difference Result 1820 states and 2394 transitions. [2024-12-02 11:18:13,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:18:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-12-02 11:18:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:13,778 INFO L225 Difference]: With dead ends: 1820 [2024-12-02 11:18:13,778 INFO L226 Difference]: Without dead ends: 1246 [2024-12-02 11:18:13,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:18:13,779 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 74 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:13,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 990 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:18:13,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2024-12-02 11:18:13,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1157. [2024-12-02 11:18:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1002 states have (on average 1.255489021956088) internal successors, (1258), 1016 states have internal predecessors, (1258), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1522 transitions. [2024-12-02 11:18:13,988 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1522 transitions. Word has length 142 [2024-12-02 11:18:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:13,988 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1522 transitions. [2024-12-02 11:18:13,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1522 transitions. [2024-12-02 11:18:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 11:18:13,990 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:13,990 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:13,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:18:13,990 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:13,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:13,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1159940751, now seen corresponding path program 1 times [2024-12-02 11:18:13,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:13,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232129811] [2024-12-02 11:18:13,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:13,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:16,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232129811] [2024-12-02 11:18:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232129811] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:16,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:16,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-12-02 11:18:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082237088] [2024-12-02 11:18:16,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:16,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 11:18:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:16,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 11:18:16,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:18:16,001 INFO L87 Difference]: Start difference. First operand 1157 states and 1522 transitions. Second operand has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:22,919 INFO L93 Difference]: Finished difference Result 2143 states and 2819 transitions. [2024-12-02 11:18:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:18:22,919 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2024-12-02 11:18:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:22,923 INFO L225 Difference]: With dead ends: 2143 [2024-12-02 11:18:22,923 INFO L226 Difference]: Without dead ends: 1340 [2024-12-02 11:18:22,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=202, Invalid=988, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:18:22,924 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 516 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:22,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1891 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 11:18:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-12-02 11:18:23,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1173. [2024-12-02 11:18:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1173 states, 1018 states have (on average 1.2554027504911591) internal successors, (1278), 1032 states have internal predecessors, (1278), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1542 transitions. [2024-12-02 11:18:23,129 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1542 transitions. Word has length 142 [2024-12-02 11:18:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:23,129 INFO L471 AbstractCegarLoop]: Abstraction has 1173 states and 1542 transitions. [2024-12-02 11:18:23,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.8947368421052633) internal successors, (55), 20 states have internal predecessors, (55), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1542 transitions. [2024-12-02 11:18:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:18:23,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:23,130 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:23,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:18:23,131 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:23,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:23,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2031090635, now seen corresponding path program 1 times [2024-12-02 11:18:23,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:23,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010160214] [2024-12-02 11:18:23,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:23,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:23,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010160214] [2024-12-02 11:18:23,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010160214] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:23,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:23,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:18:23,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577846909] [2024-12-02 11:18:23,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:23,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:18:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:23,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:18:23,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:18:23,355 INFO L87 Difference]: Start difference. First operand 1173 states and 1542 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:24,072 INFO L93 Difference]: Finished difference Result 2818 states and 3703 transitions. [2024-12-02 11:18:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:18:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-12-02 11:18:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:24,077 INFO L225 Difference]: With dead ends: 2818 [2024-12-02 11:18:24,077 INFO L226 Difference]: Without dead ends: 1648 [2024-12-02 11:18:24,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:18:24,078 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 74 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:24,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 571 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:18:24,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-12-02 11:18:24,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1343. [2024-12-02 11:18:24,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1188 states have (on average 1.2508417508417509) internal successors, (1486), 1202 states have internal predecessors, (1486), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:24,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1750 transitions. [2024-12-02 11:18:24,288 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1750 transitions. Word has length 143 [2024-12-02 11:18:24,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:24,289 INFO L471 AbstractCegarLoop]: Abstraction has 1343 states and 1750 transitions. [2024-12-02 11:18:24,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:24,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1750 transitions. [2024-12-02 11:18:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:18:24,290 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:24,290 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:24,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 11:18:24,290 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:24,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:24,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1120267628, now seen corresponding path program 1 times [2024-12-02 11:18:24,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:24,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089691148] [2024-12-02 11:18:24,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:24,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:24,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089691148] [2024-12-02 11:18:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089691148] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:24,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:24,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:24,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384584119] [2024-12-02 11:18:24,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:24,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:24,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:24,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:24,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:24,401 INFO L87 Difference]: Start difference. First operand 1343 states and 1750 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:24,687 INFO L93 Difference]: Finished difference Result 3081 states and 4005 transitions. [2024-12-02 11:18:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-12-02 11:18:24,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:24,691 INFO L225 Difference]: With dead ends: 3081 [2024-12-02 11:18:24,691 INFO L226 Difference]: Without dead ends: 1741 [2024-12-02 11:18:24,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 11:18:24,693 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 46 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:24,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 614 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-12-02 11:18:24,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1471. [2024-12-02 11:18:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1316 states have (on average 1.2454407294832828) internal successors, (1639), 1330 states have internal predecessors, (1639), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1903 transitions. [2024-12-02 11:18:24,896 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1903 transitions. Word has length 143 [2024-12-02 11:18:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:24,896 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 1903 transitions. [2024-12-02 11:18:24,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1903 transitions. [2024-12-02 11:18:24,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:18:24,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:24,898 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:24,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:18:24,898 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:24,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:24,898 INFO L85 PathProgramCache]: Analyzing trace with hash -845276229, now seen corresponding path program 1 times [2024-12-02 11:18:24,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:24,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657833318] [2024-12-02 11:18:24,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:24,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:25,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:25,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657833318] [2024-12-02 11:18:25,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657833318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:25,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:25,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:25,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960345264] [2024-12-02 11:18:25,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:25,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:25,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:25,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:25,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:25,016 INFO L87 Difference]: Start difference. First operand 1471 states and 1903 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:25,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:25,365 INFO L93 Difference]: Finished difference Result 3209 states and 4143 transitions. [2024-12-02 11:18:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:25,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-12-02 11:18:25,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:25,370 INFO L225 Difference]: With dead ends: 3209 [2024-12-02 11:18:25,370 INFO L226 Difference]: Without dead ends: 1741 [2024-12-02 11:18:25,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 11:18:25,372 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 53 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:25,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 611 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2024-12-02 11:18:25,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1471. [2024-12-02 11:18:25,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1316 states have (on average 1.2393617021276595) internal successors, (1631), 1330 states have internal predecessors, (1631), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1895 transitions. [2024-12-02 11:18:25,581 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1895 transitions. Word has length 143 [2024-12-02 11:18:25,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:25,582 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 1895 transitions. [2024-12-02 11:18:25,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1895 transitions. [2024-12-02 11:18:25,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-12-02 11:18:25,583 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:25,583 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:25,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:18:25,583 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:25,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1861343165, now seen corresponding path program 1 times [2024-12-02 11:18:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:25,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65031527] [2024-12-02 11:18:25,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:25,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:27,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:27,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65031527] [2024-12-02 11:18:27,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65031527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:27,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:27,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 11:18:27,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608089717] [2024-12-02 11:18:27,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:27,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 11:18:27,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:27,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 11:18:27,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:18:27,253 INFO L87 Difference]: Start difference. First operand 1471 states and 1895 transitions. Second operand has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:33,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:33,149 INFO L93 Difference]: Finished difference Result 3264 states and 4191 transitions. [2024-12-02 11:18:33,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 11:18:33,149 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-12-02 11:18:33,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:33,153 INFO L225 Difference]: With dead ends: 3264 [2024-12-02 11:18:33,153 INFO L226 Difference]: Without dead ends: 1796 [2024-12-02 11:18:33,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=234, Invalid=1026, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 11:18:33,155 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 478 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 1963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:33,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1595 Invalid, 1963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-12-02 11:18:33,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-12-02 11:18:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1467. [2024-12-02 11:18:33,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 1312 states have (on average 1.2370426829268293) internal successors, (1623), 1326 states have internal predecessors, (1623), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 118 states have call predecessors, (132), 132 states have call successors, (132) [2024-12-02 11:18:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 1887 transitions. [2024-12-02 11:18:33,378 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 1887 transitions. Word has length 143 [2024-12-02 11:18:33,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:33,379 INFO L471 AbstractCegarLoop]: Abstraction has 1467 states and 1887 transitions. [2024-12-02 11:18:33,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.111111111111111) internal successors, (56), 19 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:33,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 1887 transitions. [2024-12-02 11:18:33,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:18:33,379 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:33,380 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:33,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:18:33,380 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:33,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:33,380 INFO L85 PathProgramCache]: Analyzing trace with hash -170183969, now seen corresponding path program 1 times [2024-12-02 11:18:33,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:33,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766838337] [2024-12-02 11:18:33,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:33,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:33,610 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:33,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:33,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766838337] [2024-12-02 11:18:33,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766838337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:33,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:33,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:18:33,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365173816] [2024-12-02 11:18:33,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:33,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:18:33,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:33,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:18:33,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:18:33,612 INFO L87 Difference]: Start difference. First operand 1467 states and 1887 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:34,282 INFO L93 Difference]: Finished difference Result 3055 states and 3930 transitions. [2024-12-02 11:18:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:18:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-02 11:18:34,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:34,288 INFO L225 Difference]: With dead ends: 3055 [2024-12-02 11:18:34,288 INFO L226 Difference]: Without dead ends: 1591 [2024-12-02 11:18:34,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:18:34,291 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:34,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 570 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:18:34,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-12-02 11:18:34,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1199. [2024-12-02 11:18:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 1034 states have (on average 1.2321083172147003) internal successors, (1274), 1045 states have internal predecessors, (1274), 140 states have call successors, (140), 24 states have call predecessors, (140), 24 states have return successors, (140), 129 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 11:18:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1554 transitions. [2024-12-02 11:18:34,522 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1554 transitions. Word has length 144 [2024-12-02 11:18:34,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:34,522 INFO L471 AbstractCegarLoop]: Abstraction has 1199 states and 1554 transitions. [2024-12-02 11:18:34,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1554 transitions. [2024-12-02 11:18:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:18:34,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:34,524 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:34,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:18:34,524 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:34,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1427935694, now seen corresponding path program 1 times [2024-12-02 11:18:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:34,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499969912] [2024-12-02 11:18:34,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-12-02 11:18:34,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499969912] [2024-12-02 11:18:34,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499969912] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:18:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378960709] [2024-12-02 11:18:34,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:34,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:18:34,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:18:34,672 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:18:34,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:18:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:34,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:18:34,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:18:34,894 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:34,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:18:34,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378960709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:34,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:18:34,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 12 [2024-12-02 11:18:34,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048442573] [2024-12-02 11:18:34,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:34,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:18:34,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:34,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:18:34,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:18:34,895 INFO L87 Difference]: Start difference. First operand 1199 states and 1554 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:35,187 INFO L93 Difference]: Finished difference Result 2475 states and 3198 transitions. [2024-12-02 11:18:35,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:18:35,188 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-02 11:18:35,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:35,191 INFO L225 Difference]: With dead ends: 2475 [2024-12-02 11:18:35,191 INFO L226 Difference]: Without dead ends: 1279 [2024-12-02 11:18:35,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:18:35,192 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:35,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:18:35,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-12-02 11:18:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1220. [2024-12-02 11:18:35,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 1055 states have (on average 1.2274881516587677) internal successors, (1295), 1066 states have internal predecessors, (1295), 140 states have call successors, (140), 24 states have call predecessors, (140), 24 states have return successors, (140), 129 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 11:18:35,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1575 transitions. [2024-12-02 11:18:35,469 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1575 transitions. Word has length 144 [2024-12-02 11:18:35,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:35,469 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1575 transitions. [2024-12-02 11:18:35,469 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:35,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1575 transitions. [2024-12-02 11:18:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:18:35,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:35,470 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:35,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 11:18:35,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c55888b7-57b7-4be6-8d4d-80ad318fec5d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:18:35,671 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:35,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:35,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1820962704, now seen corresponding path program 1 times [2024-12-02 11:18:35,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:35,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005061819] [2024-12-02 11:18:35,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:35,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:35,782 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:35,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:35,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005061819] [2024-12-02 11:18:35,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005061819] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:35,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:35,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:35,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793236858] [2024-12-02 11:18:35,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:35,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:35,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:35,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:35,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:35,783 INFO L87 Difference]: Start difference. First operand 1220 states and 1575 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:36,078 INFO L93 Difference]: Finished difference Result 2060 states and 2664 transitions. [2024-12-02 11:18:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:36,079 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-12-02 11:18:36,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:36,082 INFO L225 Difference]: With dead ends: 2060 [2024-12-02 11:18:36,082 INFO L226 Difference]: Without dead ends: 1247 [2024-12-02 11:18:36,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 11:18:36,083 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 40 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:36,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:36,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-12-02 11:18:36,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1203. [2024-12-02 11:18:36,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1038 states have (on average 1.222543352601156) internal successors, (1269), 1049 states have internal predecessors, (1269), 140 states have call successors, (140), 24 states have call predecessors, (140), 24 states have return successors, (140), 129 states have call predecessors, (140), 140 states have call successors, (140) [2024-12-02 11:18:36,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1549 transitions. [2024-12-02 11:18:36,314 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1549 transitions. Word has length 144 [2024-12-02 11:18:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:36,314 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1549 transitions. [2024-12-02 11:18:36,314 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1549 transitions. [2024-12-02 11:18:36,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:18:36,315 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:36,315 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:36,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 11:18:36,315 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:36,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 771515590, now seen corresponding path program 1 times [2024-12-02 11:18:36,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283430638] [2024-12-02 11:18:36,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:36,499 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:36,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:36,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283430638] [2024-12-02 11:18:36,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283430638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:36,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:36,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:36,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640605389] [2024-12-02 11:18:36,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:36,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:36,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:36,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:36,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:36,501 INFO L87 Difference]: Start difference. First operand 1203 states and 1549 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:37,144 INFO L93 Difference]: Finished difference Result 2376 states and 3047 transitions. [2024-12-02 11:18:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:37,144 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 11:18:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:37,150 INFO L225 Difference]: With dead ends: 2376 [2024-12-02 11:18:37,150 INFO L226 Difference]: Without dead ends: 1176 [2024-12-02 11:18:37,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:18:37,152 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 62 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:37,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 465 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:18:37,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-12-02 11:18:37,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1048. [2024-12-02 11:18:37,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 906 states have (on average 1.2108167770419427) internal successors, (1097), 915 states have internal predecessors, (1097), 120 states have call successors, (120), 21 states have call predecessors, (120), 21 states have return successors, (120), 111 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 11:18:37,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1337 transitions. [2024-12-02 11:18:37,461 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1337 transitions. Word has length 145 [2024-12-02 11:18:37,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:37,461 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1337 transitions. [2024-12-02 11:18:37,462 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:37,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1337 transitions. [2024-12-02 11:18:37,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:18:37,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:37,462 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:37,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 11:18:37,463 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:37,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash 758231866, now seen corresponding path program 1 times [2024-12-02 11:18:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:37,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909041788] [2024-12-02 11:18:37,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:37,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:37,814 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:37,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:37,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909041788] [2024-12-02 11:18:37,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909041788] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:37,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:37,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:18:37,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145425048] [2024-12-02 11:18:37,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:37,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:18:37,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:37,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:18:37,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:18:37,817 INFO L87 Difference]: Start difference. First operand 1048 states and 1337 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:38,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:38,450 INFO L93 Difference]: Finished difference Result 1943 states and 2478 transitions. [2024-12-02 11:18:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:18:38,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 11:18:38,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:38,454 INFO L225 Difference]: With dead ends: 1943 [2024-12-02 11:18:38,454 INFO L226 Difference]: Without dead ends: 1288 [2024-12-02 11:18:38,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:18:38,455 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 69 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:38,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1326 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:18:38,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-12-02 11:18:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1118. [2024-12-02 11:18:38,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 976 states have (on average 1.2182377049180328) internal successors, (1189), 985 states have internal predecessors, (1189), 120 states have call successors, (120), 21 states have call predecessors, (120), 21 states have return successors, (120), 111 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 11:18:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1429 transitions. [2024-12-02 11:18:38,689 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1429 transitions. Word has length 145 [2024-12-02 11:18:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:38,689 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1429 transitions. [2024-12-02 11:18:38,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:38,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1429 transitions. [2024-12-02 11:18:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:18:38,690 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:38,690 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:38,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 11:18:38,691 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:38,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:38,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1047206468, now seen corresponding path program 1 times [2024-12-02 11:18:38,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:38,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204182067] [2024-12-02 11:18:38,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:38,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:38,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:38,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204182067] [2024-12-02 11:18:38,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204182067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:38,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:38,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:38,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602056569] [2024-12-02 11:18:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:38,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:38,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:38,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:38,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:38,800 INFO L87 Difference]: Start difference. First operand 1118 states and 1429 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:39,108 INFO L93 Difference]: Finished difference Result 2357 states and 3001 transitions. [2024-12-02 11:18:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:39,109 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-12-02 11:18:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:39,114 INFO L225 Difference]: With dead ends: 2357 [2024-12-02 11:18:39,114 INFO L226 Difference]: Without dead ends: 1242 [2024-12-02 11:18:39,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 11:18:39,115 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 42 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:39,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 617 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-12-02 11:18:39,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1103. [2024-12-02 11:18:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 961 states have (on average 1.2143600416233091) internal successors, (1167), 970 states have internal predecessors, (1167), 120 states have call successors, (120), 21 states have call predecessors, (120), 21 states have return successors, (120), 111 states have call predecessors, (120), 120 states have call successors, (120) [2024-12-02 11:18:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1407 transitions. [2024-12-02 11:18:39,355 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1407 transitions. Word has length 145 [2024-12-02 11:18:39,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:39,355 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1407 transitions. [2024-12-02 11:18:39,355 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1407 transitions. [2024-12-02 11:18:39,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 11:18:39,356 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:39,356 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:39,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 11:18:39,356 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:39,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:39,356 INFO L85 PathProgramCache]: Analyzing trace with hash -118147956, now seen corresponding path program 1 times [2024-12-02 11:18:39,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:39,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288939337] [2024-12-02 11:18:39,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:39,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:39,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288939337] [2024-12-02 11:18:39,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288939337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:39,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:39,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:18:39,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142894543] [2024-12-02 11:18:39,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:39,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:18:39,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:39,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:18:39,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:18:39,709 INFO L87 Difference]: Start difference. First operand 1103 states and 1407 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:40,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:40,662 INFO L93 Difference]: Finished difference Result 2478 states and 3148 transitions. [2024-12-02 11:18:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:18:40,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-12-02 11:18:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:40,667 INFO L225 Difference]: With dead ends: 2478 [2024-12-02 11:18:40,667 INFO L226 Difference]: Without dead ends: 1378 [2024-12-02 11:18:40,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:18:40,668 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 205 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:40,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 361 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:18:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2024-12-02 11:18:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1146. [2024-12-02 11:18:40,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 985 states have (on average 1.1979695431472082) internal successors, (1180), 996 states have internal predecessors, (1180), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 125 states have call predecessors, (136), 136 states have call successors, (136) [2024-12-02 11:18:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1452 transitions. [2024-12-02 11:18:40,922 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1452 transitions. Word has length 145 [2024-12-02 11:18:40,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:40,922 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1452 transitions. [2024-12-02 11:18:40,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:40,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1452 transitions. [2024-12-02 11:18:40,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:18:40,923 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:40,923 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:40,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 11:18:40,923 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:40,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:40,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1026702444, now seen corresponding path program 1 times [2024-12-02 11:18:40,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:40,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612045128] [2024-12-02 11:18:40,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:40,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:43,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:43,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612045128] [2024-12-02 11:18:43,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612045128] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:43,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:43,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2024-12-02 11:18:43,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322739781] [2024-12-02 11:18:43,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:43,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 11:18:43,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:43,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 11:18:43,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2024-12-02 11:18:43,609 INFO L87 Difference]: Start difference. First operand 1146 states and 1452 transitions. Second operand has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 11:18:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:52,052 INFO L93 Difference]: Finished difference Result 1529 states and 1909 transitions. [2024-12-02 11:18:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-12-02 11:18:52,053 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 147 [2024-12-02 11:18:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:52,056 INFO L225 Difference]: With dead ends: 1529 [2024-12-02 11:18:52,056 INFO L226 Difference]: Without dead ends: 1527 [2024-12-02 11:18:52,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 986 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=581, Invalid=3975, Unknown=0, NotChecked=0, Total=4556 [2024-12-02 11:18:52,058 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 552 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 1726 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 1726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:52,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1869 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-12-02 11:18:52,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2024-12-02 11:18:52,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1286. [2024-12-02 11:18:52,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1115 states have (on average 1.1874439461883408) internal successors, (1324), 1128 states have internal predecessors, (1324), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 131 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 11:18:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1612 transitions. [2024-12-02 11:18:52,366 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1612 transitions. Word has length 147 [2024-12-02 11:18:52,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:52,366 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1612 transitions. [2024-12-02 11:18:52,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5) internal successors, (60), 25 states have internal predecessors, (60), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-12-02 11:18:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1612 transitions. [2024-12-02 11:18:52,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:18:52,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:52,367 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:52,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 11:18:52,367 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:52,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash 2084066237, now seen corresponding path program 1 times [2024-12-02 11:18:52,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:52,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535268966] [2024-12-02 11:18:52,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:52,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:53,071 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:53,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:53,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535268966] [2024-12-02 11:18:53,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535268966] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:53,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:53,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:18:53,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449052372] [2024-12-02 11:18:53,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:53,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:18:53,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:53,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:18:53,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:18:53,073 INFO L87 Difference]: Start difference. First operand 1286 states and 1612 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:54,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:54,933 INFO L93 Difference]: Finished difference Result 2867 states and 3581 transitions. [2024-12-02 11:18:54,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:18:54,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2024-12-02 11:18:54,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:54,938 INFO L225 Difference]: With dead ends: 2867 [2024-12-02 11:18:54,939 INFO L226 Difference]: Without dead ends: 1584 [2024-12-02 11:18:54,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-12-02 11:18:54,941 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 412 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:54,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 819 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:18:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2024-12-02 11:18:55,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1319. [2024-12-02 11:18:55,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1148 states have (on average 1.1829268292682926) internal successors, (1358), 1161 states have internal predecessors, (1358), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 131 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 11:18:55,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 1646 transitions. [2024-12-02 11:18:55,388 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 1646 transitions. Word has length 147 [2024-12-02 11:18:55,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:55,388 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 1646 transitions. [2024-12-02 11:18:55,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 11:18:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 1646 transitions. [2024-12-02 11:18:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 11:18:55,389 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:55,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:55,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 11:18:55,389 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:55,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1462826518, now seen corresponding path program 1 times [2024-12-02 11:18:55,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:55,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597533505] [2024-12-02 11:18:55,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:55,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:18:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-12-02 11:18:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:18:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597533505] [2024-12-02 11:18:55,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597533505] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:18:55,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:18:55,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:18:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900720141] [2024-12-02 11:18:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:18:55,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:18:55,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:18:55,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:18:55,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:18:55,507 INFO L87 Difference]: Start difference. First operand 1319 states and 1646 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:55,913 INFO L93 Difference]: Finished difference Result 2950 states and 3659 transitions. [2024-12-02 11:18:55,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:18:55,913 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-12-02 11:18:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:55,918 INFO L225 Difference]: With dead ends: 2950 [2024-12-02 11:18:55,918 INFO L226 Difference]: Without dead ends: 1634 [2024-12-02 11:18:55,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 11:18:55,920 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 31 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:55,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:18:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1634 states. [2024-12-02 11:18:56,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1634 to 1536. [2024-12-02 11:18:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1365 states have (on average 1.1816849816849817) internal successors, (1613), 1378 states have internal predecessors, (1613), 144 states have call successors, (144), 26 states have call predecessors, (144), 26 states have return successors, (144), 131 states have call predecessors, (144), 144 states have call successors, (144) [2024-12-02 11:18:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1901 transitions. [2024-12-02 11:18:56,255 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1901 transitions. Word has length 147 [2024-12-02 11:18:56,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:18:56,255 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1901 transitions. [2024-12-02 11:18:56,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:18:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1901 transitions. [2024-12-02 11:18:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 11:18:56,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:18:56,256 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:18:56,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 11:18:56,256 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:18:56,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:18:56,256 INFO L85 PathProgramCache]: Analyzing trace with hash -364949336, now seen corresponding path program 1 times [2024-12-02 11:18:56,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:18:56,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498220494] [2024-12-02 11:18:56,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:18:56,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:18:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:21:02,234 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:21:46,299 WARN L286 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:21:51,902 WARN L286 SmtUtils]: Spent 5.59s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:22:34,503 WARN L286 SmtUtils]: Spent 5.50s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:23:01,171 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:23:31,095 WARN L286 SmtUtils]: Spent 7.14s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:24:41,706 WARN L286 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 11:25:30,522 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)