./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/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_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/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_d6f2f780-e5dc-4079-86a0-0c8334f99e69/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 9315395d0a8f14500c92b8c06710daa9c3f1878481e9b5bb1bf2cb8cc368eb3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:29:37,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:29:37,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:29:37,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:29:37,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:29:37,266 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:29:37,267 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:29:37,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:29:37,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:29:37,268 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:29:37,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:29:37,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:29:37,268 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:29:37,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:29:37,268 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:29:37,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:29:37,269 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:29:37,270 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:37,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:29:37,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:37,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:29:37,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:29:37,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:29:37,272 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:29:37,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:29:37,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:29:37,272 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_d6f2f780-e5dc-4079-86a0-0c8334f99e69/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 -> 9315395d0a8f14500c92b8c06710daa9c3f1878481e9b5bb1bf2cb8cc368eb3d [2024-12-02 12:29:37,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:29:37,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:29:37,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:29:37,478 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:29:37,479 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:29:37,480 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-12-02 12:29:40,076 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/data/f99986187/4e1ff36386bb401aa377878b085b5c12/FLAG9cfe2a196 [2024-12-02 12:29:40,299 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:29:40,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-12-02 12:29:40,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/data/f99986187/4e1ff36386bb401aa377878b085b5c12/FLAG9cfe2a196 [2024-12-02 12:29:40,659 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/data/f99986187/4e1ff36386bb401aa377878b085b5c12 [2024-12-02 12:29:40,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:29:40,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:29:40,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:29:40,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:29:40,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:29:40,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:40,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ccf73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40, skipping insertion in model container [2024-12-02 12:29:40,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:40,693 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:29:40,885 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_d6f2f780-e5dc-4079-86a0-0c8334f99e69/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c[14373,14386] [2024-12-02 12:29:40,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:29:40,899 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:29:40,951 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_d6f2f780-e5dc-4079-86a0-0c8334f99e69/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c[14373,14386] [2024-12-02 12:29:40,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:29:40,967 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:29:40,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40 WrapperNode [2024-12-02 12:29:40,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:29:40,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:29:40,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:29:40,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:29:40,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:40,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,011 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 495 [2024-12-02 12:29:41,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:29:41,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:29:41,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:29:41,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:29:41,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,025 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,040 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 12:29:41,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,049 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:29:41,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:29:41,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:29:41,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:29:41,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (1/1) ... [2024-12-02 12:29:41,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:29:41,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:29:41,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:29:41,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6f2f780-e5dc-4079-86a0-0c8334f99e69/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:29:41,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:29:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:29:41,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:29:41,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:29:41,209 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:29:41,211 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:29:41,710 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-12-02 12:29:41,710 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:29:41,734 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:29:41,735 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 12:29:41,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:41 BoogieIcfgContainer [2024-12-02 12:29:41,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:29:41,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:29:41,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:29:41,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:29:41,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:29:40" (1/3) ... [2024-12-02 12:29:41,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eafe3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:41, skipping insertion in model container [2024-12-02 12:29:41,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:29:40" (2/3) ... [2024-12-02 12:29:41,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35eafe3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:29:41, skipping insertion in model container [2024-12-02 12:29:41,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:29:41" (3/3) ... [2024-12-02 12:29:41,744 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2024-12-02 12:29:41,759 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:29:41,762 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c that has 1 procedures, 132 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 12:29:41,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:29:41,825 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;@3b1ef0df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:29:41,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:29:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 130 states have (on average 1.7769230769230768) internal successors, (231), 131 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:41,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 12:29:41,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:41,836 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:41,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:41,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2131704647, now seen corresponding path program 1 times [2024-12-02 12:29:41,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:41,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306730574] [2024-12-02 12:29:41,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:41,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:42,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306730574] [2024-12-02 12:29:42,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306730574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:29:42,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489681588] [2024-12-02 12:29:42,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:29:42,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:29:42,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:29:42,141 INFO L87 Difference]: Start difference. First operand has 132 states, 130 states have (on average 1.7769230769230768) internal successors, (231), 131 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,160 INFO L93 Difference]: Finished difference Result 205 states and 354 transitions. [2024-12-02 12:29:42,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:29:42,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-12-02 12:29:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,170 INFO L225 Difference]: With dead ends: 205 [2024-12-02 12:29:42,170 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 12:29:42,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:29:42,176 INFO L435 NwaCegarLoop]: 228 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, 228 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 12:29:42,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 12:29:42,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-12-02 12:29:42,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.763779527559055) internal successors, (224), 127 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 224 transitions. [2024-12-02 12:29:42,207 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 224 transitions. Word has length 38 [2024-12-02 12:29:42,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,207 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 224 transitions. [2024-12-02 12:29:42,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,207 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 224 transitions. [2024-12-02 12:29:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-02 12:29:42,208 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:42,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:29:42,209 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1709002821, now seen corresponding path program 1 times [2024-12-02 12:29:42,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863625955] [2024-12-02 12:29:42,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:42,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:42,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863625955] [2024-12-02 12:29:42,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863625955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:42,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432056151] [2024-12-02 12:29:42,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:42,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:42,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:42,473 INFO L87 Difference]: Start difference. First operand 128 states and 224 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,565 INFO L93 Difference]: Finished difference Result 200 states and 344 transitions. [2024-12-02 12:29:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:42,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-12-02 12:29:42,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,567 INFO L225 Difference]: With dead ends: 200 [2024-12-02 12:29:42,567 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 12:29:42,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:42,568 INFO L435 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:42,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 853 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:42,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 12:29:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-12-02 12:29:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.5275590551181102) internal successors, (194), 127 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 194 transitions. [2024-12-02 12:29:42,577 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 194 transitions. Word has length 38 [2024-12-02 12:29:42,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,577 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 194 transitions. [2024-12-02 12:29:42,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 194 transitions. [2024-12-02 12:29:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-12-02 12:29:42,579 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,579 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:42,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:29:42,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1094589259, now seen corresponding path program 1 times [2024-12-02 12:29:42,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74990960] [2024-12-02 12:29:42,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:42,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:42,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74990960] [2024-12-02 12:29:42,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74990960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:42,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085168718] [2024-12-02 12:29:42,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:42,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:42,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:42,693 INFO L87 Difference]: Start difference. First operand 128 states and 194 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,753 INFO L93 Difference]: Finished difference Result 254 states and 408 transitions. [2024-12-02 12:29:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:42,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-12-02 12:29:42,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,755 INFO L225 Difference]: With dead ends: 254 [2024-12-02 12:29:42,755 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 12:29:42,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:42,756 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 89 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:42,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 340 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:42,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 12:29:42,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2024-12-02 12:29:42,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.5628415300546448) internal successors, (286), 183 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 286 transitions. [2024-12-02 12:29:42,768 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 286 transitions. Word has length 67 [2024-12-02 12:29:42,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,768 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 286 transitions. [2024-12-02 12:29:42,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,769 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 286 transitions. [2024-12-02 12:29:42,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 12:29:42,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,771 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:42,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:29:42,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,772 INFO L85 PathProgramCache]: Analyzing trace with hash 14850531, now seen corresponding path program 1 times [2024-12-02 12:29:42,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017541839] [2024-12-02 12:29:42,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:42,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:42,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:42,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:42,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017541839] [2024-12-02 12:29:42,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017541839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:42,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:42,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:42,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68260898] [2024-12-02 12:29:42,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:42,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:42,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:42,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:42,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:42,880 INFO L87 Difference]: Start difference. First operand 184 states and 286 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:42,921 INFO L93 Difference]: Finished difference Result 416 states and 674 transitions. [2024-12-02 12:29:42,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-02 12:29:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:42,924 INFO L225 Difference]: With dead ends: 416 [2024-12-02 12:29:42,924 INFO L226 Difference]: Without dead ends: 292 [2024-12-02 12:29:42,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:42,926 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 91 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:42,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 352 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:42,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-12-02 12:29:42,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2024-12-02 12:29:42,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.602076124567474) internal successors, (463), 289 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 463 transitions. [2024-12-02 12:29:42,943 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 463 transitions. Word has length 69 [2024-12-02 12:29:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:42,943 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 463 transitions. [2024-12-02 12:29:42,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:42,943 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 463 transitions. [2024-12-02 12:29:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-02 12:29:42,945 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:42,945 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:42,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:29:42,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:42,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1269767409, now seen corresponding path program 1 times [2024-12-02 12:29:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:42,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028729392] [2024-12-02 12:29:42,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:43,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:43,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028729392] [2024-12-02 12:29:43,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028729392] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:43,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:43,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:43,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48366862] [2024-12-02 12:29:43,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:43,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:43,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:43,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:43,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:43,055 INFO L87 Difference]: Start difference. First operand 290 states and 463 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,089 INFO L93 Difference]: Finished difference Result 718 states and 1177 transitions. [2024-12-02 12:29:43,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:43,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-12-02 12:29:43,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,091 INFO L225 Difference]: With dead ends: 718 [2024-12-02 12:29:43,091 INFO L226 Difference]: Without dead ends: 488 [2024-12-02 12:29:43,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:43,093 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 85 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:43,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 353 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:43,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-12-02 12:29:43,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 486. [2024-12-02 12:29:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.622680412371134) internal successors, (787), 485 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 787 transitions. [2024-12-02 12:29:43,109 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 787 transitions. Word has length 71 [2024-12-02 12:29:43,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,110 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 787 transitions. [2024-12-02 12:29:43,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,110 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 787 transitions. [2024-12-02 12:29:43,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 12:29:43,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,111 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:43,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:29:43,111 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1533860385, now seen corresponding path program 1 times [2024-12-02 12:29:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902422929] [2024-12-02 12:29:43,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:43,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:43,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902422929] [2024-12-02 12:29:43,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902422929] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:43,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:43,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:43,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140770187] [2024-12-02 12:29:43,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:43,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:43,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:43,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:43,256 INFO L87 Difference]: Start difference. First operand 486 states and 787 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,443 INFO L93 Difference]: Finished difference Result 2054 states and 3433 transitions. [2024-12-02 12:29:43,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:29:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-02 12:29:43,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,449 INFO L225 Difference]: With dead ends: 2054 [2024-12-02 12:29:43,449 INFO L226 Difference]: Without dead ends: 1628 [2024-12-02 12:29:43,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:43,451 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 671 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:43,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1161 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:43,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2024-12-02 12:29:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 858. [2024-12-02 12:29:43,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 857 states have (on average 1.6406067677946325) internal successors, (1406), 857 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1406 transitions. [2024-12-02 12:29:43,495 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1406 transitions. Word has length 73 [2024-12-02 12:29:43,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,495 INFO L471 AbstractCegarLoop]: Abstraction has 858 states and 1406 transitions. [2024-12-02 12:29:43,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1406 transitions. [2024-12-02 12:29:43,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 12:29:43,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:43,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:29:43,497 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash 2067102988, now seen corresponding path program 1 times [2024-12-02 12:29:43,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049611573] [2024-12-02 12:29:43,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:43,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:43,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049611573] [2024-12-02 12:29:43,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049611573] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:43,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:43,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:29:43,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380038336] [2024-12-02 12:29:43,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:43,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:29:43,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:43,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:29:43,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:29:43,618 INFO L87 Difference]: Start difference. First operand 858 states and 1406 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,723 INFO L93 Difference]: Finished difference Result 2488 states and 4150 transitions. [2024-12-02 12:29:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:29:43,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-02 12:29:43,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,728 INFO L225 Difference]: With dead ends: 2488 [2024-12-02 12:29:43,728 INFO L226 Difference]: Without dead ends: 1690 [2024-12-02 12:29:43,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:29:43,730 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 333 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:43,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 552 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:43,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2024-12-02 12:29:43,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 1265. [2024-12-02 12:29:43,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.6495253164556962) internal successors, (2085), 1264 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2085 transitions. [2024-12-02 12:29:43,778 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2085 transitions. Word has length 74 [2024-12-02 12:29:43,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,778 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 2085 transitions. [2024-12-02 12:29:43,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2085 transitions. [2024-12-02 12:29:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 12:29:43,779 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,779 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:43,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:29:43,780 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1857213373, now seen corresponding path program 1 times [2024-12-02 12:29:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759593878] [2024-12-02 12:29:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:43,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:43,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759593878] [2024-12-02 12:29:43,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759593878] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:43,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:43,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760093971] [2024-12-02 12:29:43,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:43,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:43,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:43,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:43,889 INFO L87 Difference]: Start difference. First operand 1265 states and 2085 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:43,931 INFO L93 Difference]: Finished difference Result 2512 states and 4153 transitions. [2024-12-02 12:29:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 12:29:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:43,938 INFO L225 Difference]: With dead ends: 2512 [2024-12-02 12:29:43,938 INFO L226 Difference]: Without dead ends: 1818 [2024-12-02 12:29:43,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:43,939 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 92 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:43,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 422 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2024-12-02 12:29:43,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1816. [2024-12-02 12:29:43,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 1815 states have (on average 1.6380165289256199) internal successors, (2973), 1815 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 2973 transitions. [2024-12-02 12:29:43,992 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 2973 transitions. Word has length 75 [2024-12-02 12:29:43,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:43,992 INFO L471 AbstractCegarLoop]: Abstraction has 1816 states and 2973 transitions. [2024-12-02 12:29:43,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:43,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 2973 transitions. [2024-12-02 12:29:43,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 12:29:43,993 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:43,993 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:43,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:29:43,993 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:43,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:43,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1384011491, now seen corresponding path program 1 times [2024-12-02 12:29:43,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:43,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210835617] [2024-12-02 12:29:43,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:43,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:44,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210835617] [2024-12-02 12:29:44,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210835617] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:44,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508508160] [2024-12-02 12:29:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:44,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:44,077 INFO L87 Difference]: Start difference. First operand 1816 states and 2973 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:44,152 INFO L93 Difference]: Finished difference Result 3556 states and 5841 transitions. [2024-12-02 12:29:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 12:29:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:44,160 INFO L225 Difference]: With dead ends: 3556 [2024-12-02 12:29:44,160 INFO L226 Difference]: Without dead ends: 2576 [2024-12-02 12:29:44,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:44,162 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 86 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:44,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 411 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2024-12-02 12:29:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2574. [2024-12-02 12:29:44,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 2573 states have (on average 1.6265060240963856) internal successors, (4185), 2573 states have internal predecessors, (4185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 4185 transitions. [2024-12-02 12:29:44,215 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 4185 transitions. Word has length 75 [2024-12-02 12:29:44,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:44,215 INFO L471 AbstractCegarLoop]: Abstraction has 2574 states and 4185 transitions. [2024-12-02 12:29:44,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 4185 transitions. [2024-12-02 12:29:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 12:29:44,216 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:44,216 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:44,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:29:44,217 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:44,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:44,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2098145098, now seen corresponding path program 1 times [2024-12-02 12:29:44,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662517801] [2024-12-02 12:29:44,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:44,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:44,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662517801] [2024-12-02 12:29:44,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662517801] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:29:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87591598] [2024-12-02 12:29:44,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:29:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:29:44,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:29:44,304 INFO L87 Difference]: Start difference. First operand 2574 states and 4185 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:44,432 INFO L93 Difference]: Finished difference Result 8093 states and 13232 transitions. [2024-12-02 12:29:44,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:29:44,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 12:29:44,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:44,446 INFO L225 Difference]: With dead ends: 8093 [2024-12-02 12:29:44,446 INFO L226 Difference]: Without dead ends: 5638 [2024-12-02 12:29:44,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:29:44,449 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 332 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:44,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 618 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:44,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5638 states. [2024-12-02 12:29:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5638 to 4088. [2024-12-02 12:29:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 4087 states have (on average 1.6190359677024713) internal successors, (6617), 4087 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 6617 transitions. [2024-12-02 12:29:44,540 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 6617 transitions. Word has length 75 [2024-12-02 12:29:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:44,540 INFO L471 AbstractCegarLoop]: Abstraction has 4088 states and 6617 transitions. [2024-12-02 12:29:44,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 6617 transitions. [2024-12-02 12:29:44,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 12:29:44,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:44,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:44,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:29:44,541 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:44,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:44,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1812280091, now seen corresponding path program 1 times [2024-12-02 12:29:44,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:44,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787049595] [2024-12-02 12:29:44,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:44,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:44,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787049595] [2024-12-02 12:29:44,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787049595] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:44,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252314051] [2024-12-02 12:29:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:44,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:44,597 INFO L87 Difference]: Start difference. First operand 4088 states and 6617 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:44,695 INFO L93 Difference]: Finished difference Result 9117 states and 14890 transitions. [2024-12-02 12:29:44,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-02 12:29:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:44,708 INFO L225 Difference]: With dead ends: 9117 [2024-12-02 12:29:44,709 INFO L226 Difference]: Without dead ends: 6177 [2024-12-02 12:29:44,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:44,712 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 98 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:44,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 439 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6177 states. [2024-12-02 12:29:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6177 to 6175. [2024-12-02 12:29:44,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6175 states, 6174 states have (on average 1.6117589893100097) internal successors, (9951), 6174 states have internal predecessors, (9951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6175 states to 6175 states and 9951 transitions. [2024-12-02 12:29:44,834 INFO L78 Accepts]: Start accepts. Automaton has 6175 states and 9951 transitions. Word has length 75 [2024-12-02 12:29:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:44,834 INFO L471 AbstractCegarLoop]: Abstraction has 6175 states and 9951 transitions. [2024-12-02 12:29:44,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:44,834 INFO L276 IsEmpty]: Start isEmpty. Operand 6175 states and 9951 transitions. [2024-12-02 12:29:44,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-12-02 12:29:44,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:44,834 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:44,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:29:44,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:44,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:44,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2092154755, now seen corresponding path program 1 times [2024-12-02 12:29:44,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:44,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813463106] [2024-12-02 12:29:44,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:44,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:44,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:44,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813463106] [2024-12-02 12:29:44,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813463106] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:44,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:44,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:29:44,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596245961] [2024-12-02 12:29:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:44,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:29:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:44,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:29:44,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:29:44,911 INFO L87 Difference]: Start difference. First operand 6175 states and 9951 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:45,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:45,146 INFO L93 Difference]: Finished difference Result 19455 states and 31427 transitions. [2024-12-02 12:29:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:29:45,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-12-02 12:29:45,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:45,181 INFO L225 Difference]: With dead ends: 19455 [2024-12-02 12:29:45,181 INFO L226 Difference]: Without dead ends: 13359 [2024-12-02 12:29:45,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:29:45,186 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 330 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:45,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 620 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:45,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2024-12-02 12:29:45,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 9724. [2024-12-02 12:29:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9724 states, 9723 states have (on average 1.6003291165278206) internal successors, (15560), 9723 states have internal predecessors, (15560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9724 states to 9724 states and 15560 transitions. [2024-12-02 12:29:45,389 INFO L78 Accepts]: Start accepts. Automaton has 9724 states and 15560 transitions. Word has length 76 [2024-12-02 12:29:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:45,390 INFO L471 AbstractCegarLoop]: Abstraction has 9724 states and 15560 transitions. [2024-12-02 12:29:45,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9724 states and 15560 transitions. [2024-12-02 12:29:45,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 12:29:45,390 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:45,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:45,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:29:45,391 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:45,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:45,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1611496005, now seen corresponding path program 1 times [2024-12-02 12:29:45,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:45,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787568243] [2024-12-02 12:29:45,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:45,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787568243] [2024-12-02 12:29:45,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787568243] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:45,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:45,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:45,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531386159] [2024-12-02 12:29:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:45,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:45,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:45,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:45,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:45,596 INFO L87 Difference]: Start difference. First operand 9724 states and 15560 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:45,765 INFO L93 Difference]: Finished difference Result 19371 states and 31016 transitions. [2024-12-02 12:29:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-12-02 12:29:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:45,780 INFO L225 Difference]: With dead ends: 19371 [2024-12-02 12:29:45,780 INFO L226 Difference]: Without dead ends: 9726 [2024-12-02 12:29:45,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:29:45,788 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 171 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:45,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 510 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:45,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9726 states. [2024-12-02 12:29:46,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9726 to 9724. [2024-12-02 12:29:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9724 states, 9723 states have (on average 1.5874730021598271) internal successors, (15435), 9723 states have internal predecessors, (15435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9724 states to 9724 states and 15435 transitions. [2024-12-02 12:29:46,090 INFO L78 Accepts]: Start accepts. Automaton has 9724 states and 15435 transitions. Word has length 78 [2024-12-02 12:29:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:46,090 INFO L471 AbstractCegarLoop]: Abstraction has 9724 states and 15435 transitions. [2024-12-02 12:29:46,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 9724 states and 15435 transitions. [2024-12-02 12:29:46,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 12:29:46,092 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:46,092 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:46,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:29:46,092 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:46,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:46,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1525059943, now seen corresponding path program 1 times [2024-12-02 12:29:46,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694848968] [2024-12-02 12:29:46,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:46,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694848968] [2024-12-02 12:29:46,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694848968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:46,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:46,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:46,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453542304] [2024-12-02 12:29:46,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:46,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:46,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:46,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:46,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:46,362 INFO L87 Difference]: Start difference. First operand 9724 states and 15435 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:46,782 INFO L93 Difference]: Finished difference Result 27855 states and 44360 transitions. [2024-12-02 12:29:46,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:46,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-12-02 12:29:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:46,826 INFO L225 Difference]: With dead ends: 27855 [2024-12-02 12:29:46,826 INFO L226 Difference]: Without dead ends: 18210 [2024-12-02 12:29:46,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:29:46,839 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 84 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:46,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 683 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:46,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18210 states. [2024-12-02 12:29:47,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18210 to 18208. [2024-12-02 12:29:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18208 states, 18207 states have (on average 1.5730213654089087) internal successors, (28640), 18207 states have internal predecessors, (28640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18208 states to 18208 states and 28640 transitions. [2024-12-02 12:29:47,183 INFO L78 Accepts]: Start accepts. Automaton has 18208 states and 28640 transitions. Word has length 81 [2024-12-02 12:29:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:47,183 INFO L471 AbstractCegarLoop]: Abstraction has 18208 states and 28640 transitions. [2024-12-02 12:29:47,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:47,183 INFO L276 IsEmpty]: Start isEmpty. Operand 18208 states and 28640 transitions. [2024-12-02 12:29:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 12:29:47,184 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:47,184 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:47,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:29:47,184 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:47,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash -460793628, now seen corresponding path program 1 times [2024-12-02 12:29:47,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:47,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306704604] [2024-12-02 12:29:47,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:47,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:47,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306704604] [2024-12-02 12:29:47,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306704604] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:47,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:47,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:29:47,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393053066] [2024-12-02 12:29:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:47,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:29:47,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:47,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:29:47,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:47,497 INFO L87 Difference]: Start difference. First operand 18208 states and 28640 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:47,739 INFO L93 Difference]: Finished difference Result 19296 states and 30089 transitions. [2024-12-02 12:29:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 12:29:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-12-02 12:29:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:47,783 INFO L225 Difference]: With dead ends: 19296 [2024-12-02 12:29:47,783 INFO L226 Difference]: Without dead ends: 19294 [2024-12-02 12:29:47,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 12:29:47,789 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1298 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 12:29:47,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1298 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:47,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19294 states. [2024-12-02 12:29:48,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19294 to 19294. [2024-12-02 12:29:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19294 states, 19293 states have (on average 1.540299590525061) internal successors, (29717), 19293 states have internal predecessors, (29717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:48,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19294 states to 19294 states and 29717 transitions. [2024-12-02 12:29:48,197 INFO L78 Accepts]: Start accepts. Automaton has 19294 states and 29717 transitions. Word has length 82 [2024-12-02 12:29:48,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:48,197 INFO L471 AbstractCegarLoop]: Abstraction has 19294 states and 29717 transitions. [2024-12-02 12:29:48,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:48,198 INFO L276 IsEmpty]: Start isEmpty. Operand 19294 states and 29717 transitions. [2024-12-02 12:29:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:29:48,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:48,200 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:48,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:29:48,200 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:48,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:48,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1363207367, now seen corresponding path program 1 times [2024-12-02 12:29:48,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:48,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275591458] [2024-12-02 12:29:48,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:48,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 12:29:48,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:48,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275591458] [2024-12-02 12:29:48,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275591458] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:48,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:48,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:48,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136987771] [2024-12-02 12:29:48,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:48,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:48,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:48,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:48,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:48,368 INFO L87 Difference]: Start difference. First operand 19294 states and 29717 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:48,904 INFO L93 Difference]: Finished difference Result 47354 states and 73135 transitions. [2024-12-02 12:29:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:48,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-12-02 12:29:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:49,005 INFO L225 Difference]: With dead ends: 47354 [2024-12-02 12:29:49,006 INFO L226 Difference]: Without dead ends: 38172 [2024-12-02 12:29:49,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:29:49,022 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 418 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:49,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 807 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:49,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38172 states. [2024-12-02 12:29:49,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38172 to 29718. [2024-12-02 12:29:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29718 states, 29717 states have (on average 1.53794124575159) internal successors, (45703), 29717 states have internal predecessors, (45703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:49,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29718 states to 29718 states and 45703 transitions. [2024-12-02 12:29:49,855 INFO L78 Accepts]: Start accepts. Automaton has 29718 states and 45703 transitions. Word has length 109 [2024-12-02 12:29:49,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:49,855 INFO L471 AbstractCegarLoop]: Abstraction has 29718 states and 45703 transitions. [2024-12-02 12:29:49,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:49,855 INFO L276 IsEmpty]: Start isEmpty. Operand 29718 states and 45703 transitions. [2024-12-02 12:29:49,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:29:49,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:49,857 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:49,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:29:49,858 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:49,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:49,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1878017497, now seen corresponding path program 1 times [2024-12-02 12:29:49,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:49,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423184258] [2024-12-02 12:29:49,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:49,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 12:29:50,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:50,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423184258] [2024-12-02 12:29:50,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423184258] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:50,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:50,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:29:50,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731579241] [2024-12-02 12:29:50,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:50,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:29:50,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:50,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:29:50,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:29:50,022 INFO L87 Difference]: Start difference. First operand 29718 states and 45703 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:50,470 INFO L93 Difference]: Finished difference Result 51058 states and 78855 transitions. [2024-12-02 12:29:50,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:29:50,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-12-02 12:29:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:50,546 INFO L225 Difference]: With dead ends: 51058 [2024-12-02 12:29:50,547 INFO L226 Difference]: Without dead ends: 41876 [2024-12-02 12:29:50,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:29:50,562 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 426 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:50,562 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 797 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:50,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41876 states. [2024-12-02 12:29:51,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41876 to 40334. [2024-12-02 12:29:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40334 states, 40333 states have (on average 1.5380209753799619) internal successors, (62033), 40333 states have internal predecessors, (62033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40334 states to 40334 states and 62033 transitions. [2024-12-02 12:29:51,322 INFO L78 Accepts]: Start accepts. Automaton has 40334 states and 62033 transitions. Word has length 109 [2024-12-02 12:29:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:51,322 INFO L471 AbstractCegarLoop]: Abstraction has 40334 states and 62033 transitions. [2024-12-02 12:29:51,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 40334 states and 62033 transitions. [2024-12-02 12:29:51,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 12:29:51,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:51,325 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:51,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:29:51,325 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:51,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:51,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1318274085, now seen corresponding path program 1 times [2024-12-02 12:29:51,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:51,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381209339] [2024-12-02 12:29:51,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:51,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:51,408 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:29:51,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:51,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381209339] [2024-12-02 12:29:51,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381209339] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:51,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:51,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:51,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007829690] [2024-12-02 12:29:51,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:51,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:51,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:51,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:51,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:51,410 INFO L87 Difference]: Start difference. First operand 40334 states and 62033 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:52,221 INFO L93 Difference]: Finished difference Result 84449 states and 130443 transitions. [2024-12-02 12:29:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-12-02 12:29:52,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:52,381 INFO L225 Difference]: With dead ends: 84449 [2024-12-02 12:29:52,381 INFO L226 Difference]: Without dead ends: 75007 [2024-12-02 12:29:52,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:52,400 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 74 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:52,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 350 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:52,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75007 states. [2024-12-02 12:29:53,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75007 to 74890. [2024-12-02 12:29:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74890 states, 74889 states have (on average 1.540359732403958) internal successors, (115356), 74889 states have internal predecessors, (115356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74890 states to 74890 states and 115356 transitions. [2024-12-02 12:29:53,738 INFO L78 Accepts]: Start accepts. Automaton has 74890 states and 115356 transitions. Word has length 109 [2024-12-02 12:29:53,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:53,739 INFO L471 AbstractCegarLoop]: Abstraction has 74890 states and 115356 transitions. [2024-12-02 12:29:53,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:53,739 INFO L276 IsEmpty]: Start isEmpty. Operand 74890 states and 115356 transitions. [2024-12-02 12:29:53,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:29:53,740 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:53,740 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:53,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:29:53,741 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:53,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:53,741 INFO L85 PathProgramCache]: Analyzing trace with hash -133743484, now seen corresponding path program 1 times [2024-12-02 12:29:53,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:53,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901644775] [2024-12-02 12:29:53,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:53,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:53,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:53,866 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:29:53,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901644775] [2024-12-02 12:29:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901644775] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:53,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:29:53,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145369114] [2024-12-02 12:29:53,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:53,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:29:53,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:53,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:29:53,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:29:53,868 INFO L87 Difference]: Start difference. First operand 74890 states and 115356 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:54,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:54,565 INFO L93 Difference]: Finished difference Result 121607 states and 188025 transitions. [2024-12-02 12:29:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:29:54,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 12:29:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:54,668 INFO L225 Difference]: With dead ends: 121607 [2024-12-02 12:29:54,668 INFO L226 Difference]: Without dead ends: 78168 [2024-12-02 12:29:54,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:29:54,706 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 172 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:54,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 641 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:29:54,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78168 states. [2024-12-02 12:29:55,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78168 to 52164. [2024-12-02 12:29:55,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52164 states, 52163 states have (on average 1.535571190307306) internal successors, (80100), 52163 states have internal predecessors, (80100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52164 states to 52164 states and 80100 transitions. [2024-12-02 12:29:56,050 INFO L78 Accepts]: Start accepts. Automaton has 52164 states and 80100 transitions. Word has length 110 [2024-12-02 12:29:56,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:56,050 INFO L471 AbstractCegarLoop]: Abstraction has 52164 states and 80100 transitions. [2024-12-02 12:29:56,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:56,050 INFO L276 IsEmpty]: Start isEmpty. Operand 52164 states and 80100 transitions. [2024-12-02 12:29:56,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:29:56,052 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:56,053 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:56,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:29:56,053 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:56,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:56,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1421102114, now seen corresponding path program 1 times [2024-12-02 12:29:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063309300] [2024-12-02 12:29:56,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:56,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:56,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:56,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063309300] [2024-12-02 12:29:56,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063309300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:56,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:56,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:56,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128078836] [2024-12-02 12:29:56,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:56,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:56,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:56,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:56,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:56,154 INFO L87 Difference]: Start difference. First operand 52164 states and 80100 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:57,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:29:57,397 INFO L93 Difference]: Finished difference Result 155264 states and 237901 transitions. [2024-12-02 12:29:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:29:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 12:29:57,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:29:57,519 INFO L225 Difference]: With dead ends: 155264 [2024-12-02 12:29:57,519 INFO L226 Difference]: Without dead ends: 103179 [2024-12-02 12:29:57,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:57,565 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 144 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:29:57,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 463 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:29:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103179 states. [2024-12-02 12:29:59,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103179 to 103177. [2024-12-02 12:29:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103177 states, 103176 states have (on average 1.5194328138326743) internal successors, (156769), 103176 states have internal predecessors, (156769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103177 states to 103177 states and 156769 transitions. [2024-12-02 12:29:59,263 INFO L78 Accepts]: Start accepts. Automaton has 103177 states and 156769 transitions. Word has length 110 [2024-12-02 12:29:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:29:59,263 INFO L471 AbstractCegarLoop]: Abstraction has 103177 states and 156769 transitions. [2024-12-02 12:29:59,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:29:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 103177 states and 156769 transitions. [2024-12-02 12:29:59,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 12:29:59,266 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:29:59,266 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:29:59,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:29:59,266 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:29:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:29:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash 548619332, now seen corresponding path program 1 times [2024-12-02 12:29:59,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:29:59,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297996551] [2024-12-02 12:29:59,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:29:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:29:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:29:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:29:59,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:29:59,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297996551] [2024-12-02 12:29:59,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297996551] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:29:59,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:29:59,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:29:59,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242776465] [2024-12-02 12:29:59,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:29:59,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:29:59,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:29:59,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:29:59,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:29:59,311 INFO L87 Difference]: Start difference. First operand 103177 states and 156769 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:01,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:01,314 INFO L93 Difference]: Finished difference Result 307095 states and 465539 transitions. [2024-12-02 12:30:01,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:01,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2024-12-02 12:30:01,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:01,595 INFO L225 Difference]: With dead ends: 307095 [2024-12-02 12:30:01,596 INFO L226 Difference]: Without dead ends: 204051 [2024-12-02 12:30:01,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:01,667 INFO L435 NwaCegarLoop]: 253 mSDtfsCounter, 125 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:01,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 439 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204051 states. [2024-12-02 12:30:04,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204051 to 204049. [2024-12-02 12:30:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204049 states, 204048 states have (on average 1.502906178938289) internal successors, (306665), 204048 states have internal predecessors, (306665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204049 states to 204049 states and 306665 transitions. [2024-12-02 12:30:05,319 INFO L78 Accepts]: Start accepts. Automaton has 204049 states and 306665 transitions. Word has length 110 [2024-12-02 12:30:05,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:05,319 INFO L471 AbstractCegarLoop]: Abstraction has 204049 states and 306665 transitions. [2024-12-02 12:30:05,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:05,319 INFO L276 IsEmpty]: Start isEmpty. Operand 204049 states and 306665 transitions. [2024-12-02 12:30:05,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:30:05,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:05,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:05,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:30:05,324 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:05,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:05,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2068824111, now seen corresponding path program 1 times [2024-12-02 12:30:05,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:05,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501300360] [2024-12-02 12:30:05,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:05,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:05,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:30:05,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:05,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501300360] [2024-12-02 12:30:05,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501300360] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:05,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:05,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:05,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138764989] [2024-12-02 12:30:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:05,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:05,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:05,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:05,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:05,412 INFO L87 Difference]: Start difference. First operand 204049 states and 306665 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:07,512 INFO L93 Difference]: Finished difference Result 304925 states and 456565 transitions. [2024-12-02 12:30:07,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:07,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-12-02 12:30:07,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:07,721 INFO L225 Difference]: With dead ends: 304925 [2024-12-02 12:30:07,721 INFO L226 Difference]: Without dead ends: 204155 [2024-12-02 12:30:07,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:07,767 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 118 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:07,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 523 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204155 states. [2024-12-02 12:30:10,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204155 to 204153. [2024-12-02 12:30:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204153 states, 204152 states have (on average 1.4915895999059525) internal successors, (304511), 204152 states have internal predecessors, (304511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204153 states to 204153 states and 304511 transitions. [2024-12-02 12:30:11,240 INFO L78 Accepts]: Start accepts. Automaton has 204153 states and 304511 transitions. Word has length 111 [2024-12-02 12:30:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:11,241 INFO L471 AbstractCegarLoop]: Abstraction has 204153 states and 304511 transitions. [2024-12-02 12:30:11,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 204153 states and 304511 transitions. [2024-12-02 12:30:11,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:30:11,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:11,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:11,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:30:11,244 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:11,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:11,244 INFO L85 PathProgramCache]: Analyzing trace with hash -60164686, now seen corresponding path program 1 times [2024-12-02 12:30:11,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:11,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649773987] [2024-12-02 12:30:11,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:11,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:11,311 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:30:11,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:11,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649773987] [2024-12-02 12:30:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649773987] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141006884] [2024-12-02 12:30:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:11,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:11,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:11,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:11,312 INFO L87 Difference]: Start difference. First operand 204153 states and 304511 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:13,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:13,363 INFO L93 Difference]: Finished difference Result 273892 states and 407213 transitions. [2024-12-02 12:30:13,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:13,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-12-02 12:30:13,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:13,556 INFO L225 Difference]: With dead ends: 273892 [2024-12-02 12:30:13,556 INFO L226 Difference]: Without dead ends: 173132 [2024-12-02 12:30:13,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:13,612 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 132 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:13,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 539 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173132 states. [2024-12-02 12:30:15,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173132 to 173130. [2024-12-02 12:30:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173130 states, 173129 states have (on average 1.4804625452697122) internal successors, (256311), 173129 states have internal predecessors, (256311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:16,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173130 states to 173130 states and 256311 transitions. [2024-12-02 12:30:16,208 INFO L78 Accepts]: Start accepts. Automaton has 173130 states and 256311 transitions. Word has length 111 [2024-12-02 12:30:16,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:16,209 INFO L471 AbstractCegarLoop]: Abstraction has 173130 states and 256311 transitions. [2024-12-02 12:30:16,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:16,209 INFO L276 IsEmpty]: Start isEmpty. Operand 173130 states and 256311 transitions. [2024-12-02 12:30:16,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 12:30:16,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:16,214 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:16,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:30:16,214 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:16,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash -440709627, now seen corresponding path program 1 times [2024-12-02 12:30:16,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:16,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80466956] [2024-12-02 12:30:16,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:16,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:30:16,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80466956] [2024-12-02 12:30:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80466956] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:16,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:16,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:16,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132877206] [2024-12-02 12:30:16,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:16,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:16,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:16,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:16,555 INFO L87 Difference]: Start difference. First operand 173130 states and 256311 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:18,382 INFO L93 Difference]: Finished difference Result 323790 states and 480259 transitions. [2024-12-02 12:30:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:18,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2024-12-02 12:30:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:18,548 INFO L225 Difference]: With dead ends: 323790 [2024-12-02 12:30:18,548 INFO L226 Difference]: Without dead ends: 151202 [2024-12-02 12:30:18,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:18,622 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 74 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:18,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 415 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:18,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151202 states. [2024-12-02 12:30:20,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151202 to 151172. [2024-12-02 12:30:20,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151172 states, 151171 states have (on average 1.474786830807496) internal successors, (222945), 151171 states have internal predecessors, (222945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:20,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151172 states to 151172 states and 222945 transitions. [2024-12-02 12:30:20,790 INFO L78 Accepts]: Start accepts. Automaton has 151172 states and 222945 transitions. Word has length 111 [2024-12-02 12:30:20,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:20,790 INFO L471 AbstractCegarLoop]: Abstraction has 151172 states and 222945 transitions. [2024-12-02 12:30:20,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 151172 states and 222945 transitions. [2024-12-02 12:30:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:30:20,793 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:20,794 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:20,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:30:20,794 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:20,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1753806184, now seen corresponding path program 1 times [2024-12-02 12:30:20,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:20,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359982158] [2024-12-02 12:30:20,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:20,889 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:30:20,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:20,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359982158] [2024-12-02 12:30:20,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359982158] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:20,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:20,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:30:20,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588357142] [2024-12-02 12:30:20,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:20,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:30:20,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:20,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:30:20,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:30:20,890 INFO L87 Difference]: Start difference. First operand 151172 states and 222945 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:23,030 INFO L93 Difference]: Finished difference Result 251694 states and 373835 transitions. [2024-12-02 12:30:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:23,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-02 12:30:23,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:23,229 INFO L225 Difference]: With dead ends: 251694 [2024-12-02 12:30:23,229 INFO L226 Difference]: Without dead ends: 196082 [2024-12-02 12:30:23,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:30:23,269 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 405 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:23,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 899 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:30:23,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196082 states. [2024-12-02 12:30:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196082 to 187012. [2024-12-02 12:30:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187012 states, 187011 states have (on average 1.4777793819614888) internal successors, (276361), 187011 states have internal predecessors, (276361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187012 states to 187012 states and 276361 transitions. [2024-12-02 12:30:26,110 INFO L78 Accepts]: Start accepts. Automaton has 187012 states and 276361 transitions. Word has length 112 [2024-12-02 12:30:26,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:26,110 INFO L471 AbstractCegarLoop]: Abstraction has 187012 states and 276361 transitions. [2024-12-02 12:30:26,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 187012 states and 276361 transitions. [2024-12-02 12:30:26,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:30:26,116 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:26,116 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:26,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:30:26,116 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:26,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:26,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1475449555, now seen corresponding path program 1 times [2024-12-02 12:30:26,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:26,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455270153] [2024-12-02 12:30:26,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:26,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 12:30:26,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:26,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455270153] [2024-12-02 12:30:26,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455270153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:26,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:26,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:30:26,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786920447] [2024-12-02 12:30:26,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:26,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:30:26,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:26,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:30:26,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:30:26,499 INFO L87 Difference]: Start difference. First operand 187012 states and 276361 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:30,130 INFO L93 Difference]: Finished difference Result 442474 states and 657322 transitions. [2024-12-02 12:30:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:30:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-02 12:30:30,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:30,583 INFO L225 Difference]: With dead ends: 442474 [2024-12-02 12:30:30,583 INFO L226 Difference]: Without dead ends: 337404 [2024-12-02 12:30:30,653 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 12:30:30,653 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 337 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:30,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 504 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337404 states. [2024-12-02 12:30:35,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337404 to 290268. [2024-12-02 12:30:35,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290268 states, 290267 states have (on average 1.4798823152476857) internal successors, (429561), 290267 states have internal predecessors, (429561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:35,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290268 states to 290268 states and 429561 transitions. [2024-12-02 12:30:35,634 INFO L78 Accepts]: Start accepts. Automaton has 290268 states and 429561 transitions. Word has length 112 [2024-12-02 12:30:35,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:35,634 INFO L471 AbstractCegarLoop]: Abstraction has 290268 states and 429561 transitions. [2024-12-02 12:30:35,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 290268 states and 429561 transitions. [2024-12-02 12:30:35,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:30:35,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:35,637 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:35,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:30:35,637 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:35,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:35,637 INFO L85 PathProgramCache]: Analyzing trace with hash 761315948, now seen corresponding path program 1 times [2024-12-02 12:30:35,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:35,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718735749] [2024-12-02 12:30:35,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:35,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:35,719 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 12:30:35,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:35,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718735749] [2024-12-02 12:30:35,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718735749] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:35,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:35,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:30:35,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445945250] [2024-12-02 12:30:35,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:35,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:30:35,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:35,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:30:35,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:30:35,720 INFO L87 Difference]: Start difference. First operand 290268 states and 429561 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:39,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:39,458 INFO L93 Difference]: Finished difference Result 469246 states and 698180 transitions. [2024-12-02 12:30:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:30:39,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-02 12:30:39,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:39,873 INFO L225 Difference]: With dead ends: 469246 [2024-12-02 12:30:39,874 INFO L226 Difference]: Without dead ends: 380232 [2024-12-02 12:30:39,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:30:39,948 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 183 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:39,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 572 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:30:40,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380232 states. [2024-12-02 12:30:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380232 to 362388. [2024-12-02 12:30:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362388 states, 362387 states have (on average 1.4796253728748547) internal successors, (536197), 362387 states have internal predecessors, (536197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:46,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362388 states to 362388 states and 536197 transitions. [2024-12-02 12:30:46,028 INFO L78 Accepts]: Start accepts. Automaton has 362388 states and 536197 transitions. Word has length 112 [2024-12-02 12:30:46,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:30:46,029 INFO L471 AbstractCegarLoop]: Abstraction has 362388 states and 536197 transitions. [2024-12-02 12:30:46,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 362388 states and 536197 transitions. [2024-12-02 12:30:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 12:30:46,031 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:30:46,031 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:30:46,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:30:46,031 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:30:46,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:30:46,031 INFO L85 PathProgramCache]: Analyzing trace with hash -259752406, now seen corresponding path program 1 times [2024-12-02 12:30:46,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:30:46,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469799985] [2024-12-02 12:30:46,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:30:46,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:30:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:30:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 12:30:46,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:30:46,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469799985] [2024-12-02 12:30:46,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469799985] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:30:46,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:30:46,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:30:46,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020158657] [2024-12-02 12:30:46,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:30:46,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:30:46,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:30:46,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:30:46,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:46,089 INFO L87 Difference]: Start difference. First operand 362388 states and 536197 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:30:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:30:52,005 INFO L93 Difference]: Finished difference Result 770196 states and 1142651 transitions. [2024-12-02 12:30:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:30:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2024-12-02 12:30:52,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:30:52,756 INFO L225 Difference]: With dead ends: 770196 [2024-12-02 12:30:52,756 INFO L226 Difference]: Without dead ends: 610798 [2024-12-02 12:30:52,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:30:52,849 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 68 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:30:52,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 351 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:30:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610798 states. [2024-12-02 12:31:02,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610798 to 609088. [2024-12-02 12:31:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609088 states, 609087 states have (on average 1.4778397831508472) internal successors, (900133), 609087 states have internal predecessors, (900133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:03,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609088 states to 609088 states and 900133 transitions. [2024-12-02 12:31:04,012 INFO L78 Accepts]: Start accepts. Automaton has 609088 states and 900133 transitions. Word has length 112 [2024-12-02 12:31:04,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:04,013 INFO L471 AbstractCegarLoop]: Abstraction has 609088 states and 900133 transitions. [2024-12-02 12:31:04,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:04,013 INFO L276 IsEmpty]: Start isEmpty. Operand 609088 states and 900133 transitions. [2024-12-02 12:31:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:31:04,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:04,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:31:04,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 12:31:04,017 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:04,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2001593843, now seen corresponding path program 1 times [2024-12-02 12:31:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:04,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309492159] [2024-12-02 12:31:04,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:31:04,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309492159] [2024-12-02 12:31:04,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309492159] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:04,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:04,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:31:04,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565133618] [2024-12-02 12:31:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:04,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:31:04,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:04,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:31:04,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:31:04,154 INFO L87 Difference]: Start difference. First operand 609088 states and 900133 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:08,568 INFO L93 Difference]: Finished difference Result 878988 states and 1299356 transitions. [2024-12-02 12:31:08,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:31:08,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-02 12:31:08,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:08,979 INFO L225 Difference]: With dead ends: 878988 [2024-12-02 12:31:08,979 INFO L226 Difference]: Without dead ends: 270508 [2024-12-02 12:31:09,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:31:09,386 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 57 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:09,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 384 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270508 states. [2024-12-02 12:31:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270508 to 270506. [2024-12-02 12:31:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270506 states, 270505 states have (on average 1.4674405279015175) internal successors, (396950), 270505 states have internal predecessors, (396950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270506 states to 270506 states and 396950 transitions. [2024-12-02 12:31:14,435 INFO L78 Accepts]: Start accepts. Automaton has 270506 states and 396950 transitions. Word has length 113 [2024-12-02 12:31:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:14,436 INFO L471 AbstractCegarLoop]: Abstraction has 270506 states and 396950 transitions. [2024-12-02 12:31:14,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 270506 states and 396950 transitions. [2024-12-02 12:31:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 12:31:14,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:14,440 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:31:14,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 12:31:14,440 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:14,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:14,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1501829839, now seen corresponding path program 1 times [2024-12-02 12:31:14,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:14,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732031549] [2024-12-02 12:31:14,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:14,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:14,532 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 12:31:14,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:14,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732031549] [2024-12-02 12:31:14,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732031549] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:14,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:14,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:31:14,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012120864] [2024-12-02 12:31:14,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:14,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:31:14,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:14,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:31:14,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:31:14,533 INFO L87 Difference]: Start difference. First operand 270506 states and 396950 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:19,184 INFO L93 Difference]: Finished difference Result 578110 states and 849607 transitions. [2024-12-02 12:31:19,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:31:19,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2024-12-02 12:31:19,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:19,864 INFO L225 Difference]: With dead ends: 578110 [2024-12-02 12:31:19,864 INFO L226 Difference]: Without dead ends: 474358 [2024-12-02 12:31:19,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:31:19,930 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 179 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:19,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 571 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474358 states. [2024-12-02 12:31:26,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474358 to 452172. [2024-12-02 12:31:27,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452172 states, 452171 states have (on average 1.4661289644846751) internal successors, (662941), 452171 states have internal predecessors, (662941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452172 states to 452172 states and 662941 transitions. [2024-12-02 12:31:27,821 INFO L78 Accepts]: Start accepts. Automaton has 452172 states and 662941 transitions. Word has length 113 [2024-12-02 12:31:27,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:27,821 INFO L471 AbstractCegarLoop]: Abstraction has 452172 states and 662941 transitions. [2024-12-02 12:31:27,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 452172 states and 662941 transitions. [2024-12-02 12:31:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 12:31:27,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:27,823 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:31:27,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 12:31:27,823 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:27,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:27,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1302637249, now seen corresponding path program 1 times [2024-12-02 12:31:27,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:27,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746778833] [2024-12-02 12:31:27,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:27,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:28,030 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 12:31:28,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:28,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746778833] [2024-12-02 12:31:28,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746778833] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:28,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:31:28,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873865654] [2024-12-02 12:31:28,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:28,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:31:28,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:28,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:31:28,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:31:28,031 INFO L87 Difference]: Start difference. First operand 452172 states and 662941 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:36,622 INFO L93 Difference]: Finished difference Result 1119317 states and 1647034 transitions. [2024-12-02 12:31:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:31:36,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2024-12-02 12:31:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:37,816 INFO L225 Difference]: With dead ends: 1119317 [2024-12-02 12:31:37,816 INFO L226 Difference]: Without dead ends: 800974 [2024-12-02 12:31:37,944 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 12:31:37,944 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 339 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:37,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 510 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:38,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800974 states. [2024-12-02 12:31:48,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800974 to 687376. [2024-12-02 12:31:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687376 states, 687375 states have (on average 1.466174940898345) internal successors, (1007812), 687375 states have internal predecessors, (1007812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687376 states to 687376 states and 1007812 transitions. [2024-12-02 12:31:50,206 INFO L78 Accepts]: Start accepts. Automaton has 687376 states and 1007812 transitions. Word has length 114 [2024-12-02 12:31:50,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:31:50,206 INFO L471 AbstractCegarLoop]: Abstraction has 687376 states and 1007812 transitions. [2024-12-02 12:31:50,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 687376 states and 1007812 transitions. [2024-12-02 12:31:50,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 12:31:50,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:31:50,210 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:31:50,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 12:31:50,210 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:31:50,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:31:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1790853847, now seen corresponding path program 1 times [2024-12-02 12:31:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:31:50,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243149373] [2024-12-02 12:31:50,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:31:50,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:31:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:31:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:31:50,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:31:50,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243149373] [2024-12-02 12:31:50,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243149373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:31:50,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:31:50,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:31:50,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676939297] [2024-12-02 12:31:50,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:31:50,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:31:50,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:31:50,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:31:50,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:31:50,279 INFO L87 Difference]: Start difference. First operand 687376 states and 1007812 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:31:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:31:55,192 INFO L93 Difference]: Finished difference Result 1012084 states and 1483821 transitions. [2024-12-02 12:31:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:31:55,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2024-12-02 12:31:55,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:31:55,900 INFO L225 Difference]: With dead ends: 1012084 [2024-12-02 12:31:55,900 INFO L226 Difference]: Without dead ends: 325814 [2024-12-02 12:31:56,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:31:56,057 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 46 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:31:56,057 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 359 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:31:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325814 states.