./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/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_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/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_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/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 043b41ee1fabb1e5ed7ee3566b548a40fae9dd3d7487c6064ec51d57b94981a7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:54:02,989 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:54:03,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:54:03,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:54:03,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:54:03,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:54:03,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:54:03,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:54:03,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:54:03,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:54:03,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:54:03,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:54:03,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:54:03,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:54:03,076 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:54:03,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:54:03,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:54:03,076 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:54:03,077 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:54:03,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:54:03,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:54:03,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:54:03,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:54:03,079 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:54:03,079 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_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/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 -> 043b41ee1fabb1e5ed7ee3566b548a40fae9dd3d7487c6064ec51d57b94981a7 [2024-12-02 08:54:03,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:54:03,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:54:03,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:54:03,326 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:54:03,327 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:54:03,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i [2024-12-02 08:54:05,961 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/data/81e106024/d030761cd3d544f99a74c75bf3b42d91/FLAG01937cc96 [2024-12-02 08:54:06,169 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:54:06,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i [2024-12-02 08:54:06,178 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/data/81e106024/d030761cd3d544f99a74c75bf3b42d91/FLAG01937cc96 [2024-12-02 08:54:06,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/data/81e106024/d030761cd3d544f99a74c75bf3b42d91 [2024-12-02 08:54:06,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:54:06,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:54:06,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:54:06,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:54:06,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:54:06,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8da3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06, skipping insertion in model container [2024-12-02 08:54:06,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:54:06,353 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_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i[917,930] [2024-12-02 08:54:06,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:54:06,421 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:54:06,431 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_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-71.i[917,930] [2024-12-02 08:54:06,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:54:06,488 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:54:06,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06 WrapperNode [2024-12-02 08:54:06,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:54:06,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:54:06,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:54:06,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:54:06,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,540 INFO L138 Inliner]: procedures = 27, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 501 [2024-12-02 08:54:06,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:54:06,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:54:06,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:54:06,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:54:06,550 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,555 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,574 INFO L175 MemorySlicer]: Split 139 memory accesses to 2 slices as follows [2, 137]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-12-02 08:54:06,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,586 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,599 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:54:06,600 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:54:06,600 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:54:06,600 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:54:06,601 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (1/1) ... [2024-12-02 08:54:06,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:54:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:54:06,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:54:06,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:54:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:54:06,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:54:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:54:06,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:54:06,758 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:54:06,759 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:54:07,196 INFO L? ?]: Removed 126 outVars from TransFormulas that were not future-live. [2024-12-02 08:54:07,196 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:54:07,206 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:54:07,206 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:54:07,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:54:07 BoogieIcfgContainer [2024-12-02 08:54:07,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:54:07,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:54:07,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:54:07,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:54:07,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:54:06" (1/3) ... [2024-12-02 08:54:07,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf8d635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:54:07, skipping insertion in model container [2024-12-02 08:54:07,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:54:06" (2/3) ... [2024-12-02 08:54:07,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bf8d635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:54:07, skipping insertion in model container [2024-12-02 08:54:07,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:54:07" (3/3) ... [2024-12-02 08:54:07,215 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-71.i [2024-12-02 08:54:07,236 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:54:07,239 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-71.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:54:07,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:54:07,295 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;@5c2c51a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:54:07,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:54:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:54:07,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:54:07,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:07,308 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:07,308 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:07,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:07,312 INFO L85 PathProgramCache]: Analyzing trace with hash -312506901, now seen corresponding path program 1 times [2024-12-02 08:54:07,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:07,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173018470] [2024-12-02 08:54:07,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:07,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:54:07,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:07,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173018470] [2024-12-02 08:54:07,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173018470] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:54:07,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396864567] [2024-12-02 08:54:07,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:07,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:07,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:54:07,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:54:07,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:54:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:07,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:54:07,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:54:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-12-02 08:54:07,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:54:07,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396864567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:07,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:54:07,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:54:07,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558687444] [2024-12-02 08:54:07,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:07,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:54:07,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:07,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:54:07,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:54:07,852 INFO L87 Difference]: Start difference. First operand has 105 states, 83 states have (on average 1.3855421686746987) internal successors, (115), 84 states have internal predecessors, (115), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:54:07,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:07,875 INFO L93 Difference]: Finished difference Result 203 states and 319 transitions. [2024-12-02 08:54:07,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:54:07,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2024-12-02 08:54:07,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:07,882 INFO L225 Difference]: With dead ends: 203 [2024-12-02 08:54:07,882 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 08:54:07,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 08:54:07,888 INFO L435 NwaCegarLoop]: 144 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, 144 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 08:54:07,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:54:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 08:54:07,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 08:54:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 80 states have (on average 1.325) internal successors, (106), 80 states have internal predecessors, (106), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:54:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2024-12-02 08:54:07,923 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 144 [2024-12-02 08:54:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:07,924 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2024-12-02 08:54:07,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:54:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2024-12-02 08:54:07,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:54:07,926 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:07,927 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:07,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:54:08,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:54:08,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:08,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:08,128 INFO L85 PathProgramCache]: Analyzing trace with hash 693008529, now seen corresponding path program 1 times [2024-12-02 08:54:08,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:08,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527895839] [2024-12-02 08:54:08,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:08,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:08,420 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:08,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:08,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527895839] [2024-12-02 08:54:08,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527895839] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:08,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:08,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:54:08,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675523948] [2024-12-02 08:54:08,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:08,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:54:08,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:08,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:54:08,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:54:08,423 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:08,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:08,466 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-12-02 08:54:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:54:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-12-02 08:54:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:08,469 INFO L225 Difference]: With dead ends: 202 [2024-12-02 08:54:08,469 INFO L226 Difference]: Without dead ends: 104 [2024-12-02 08:54:08,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:54:08,471 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:08,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 412 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:54:08,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-12-02 08:54:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-12-02 08:54:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 82 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:54:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 146 transitions. [2024-12-02 08:54:08,483 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 146 transitions. Word has length 144 [2024-12-02 08:54:08,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:08,485 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 146 transitions. [2024-12-02 08:54:08,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:08,485 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2024-12-02 08:54:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:54:08,487 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:08,488 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:08,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:54:08,488 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:08,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1826951405, now seen corresponding path program 1 times [2024-12-02 08:54:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737151711] [2024-12-02 08:54:08,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:08,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:08,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:08,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737151711] [2024-12-02 08:54:08,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737151711] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:08,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:08,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:54:08,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182506298] [2024-12-02 08:54:08,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:08,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:54:08,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:08,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:54:08,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:54:08,670 INFO L87 Difference]: Start difference. First operand 103 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:08,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:08,700 INFO L93 Difference]: Finished difference Result 206 states and 293 transitions. [2024-12-02 08:54:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:54:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 144 [2024-12-02 08:54:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:08,703 INFO L225 Difference]: With dead ends: 206 [2024-12-02 08:54:08,703 INFO L226 Difference]: Without dead ends: 106 [2024-12-02 08:54:08,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:54:08,704 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:08,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 415 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:54:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-12-02 08:54:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-12-02 08:54:08,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 84 states have internal predecessors, (110), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 08:54:08,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-12-02 08:54:08,714 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 144 [2024-12-02 08:54:08,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:08,714 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-12-02 08:54:08,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:08,714 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-12-02 08:54:08,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 08:54:08,716 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:08,716 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:08,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:54:08,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:08,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:08,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1825104363, now seen corresponding path program 1 times [2024-12-02 08:54:08,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:08,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601083548] [2024-12-02 08:54:08,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:08,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:10,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:10,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601083548] [2024-12-02 08:54:10,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601083548] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:10,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:10,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:54:10,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127246340] [2024-12-02 08:54:10,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:10,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:54:10,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:10,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:54:10,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:54:10,354 INFO L87 Difference]: Start difference. First operand 105 states and 148 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:10,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:10,980 INFO L93 Difference]: Finished difference Result 241 states and 338 transitions. [2024-12-02 08:54:10,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:54:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2024-12-02 08:54:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:10,982 INFO L225 Difference]: With dead ends: 241 [2024-12-02 08:54:10,982 INFO L226 Difference]: Without dead ends: 139 [2024-12-02 08:54:10,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:54:10,984 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 138 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:10,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 309 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:54:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-12-02 08:54:11,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 132. [2024-12-02 08:54:11,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 100 states have (on average 1.26) internal successors, (126), 101 states have internal predecessors, (126), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:11,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 184 transitions. [2024-12-02 08:54:11,006 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 184 transitions. Word has length 144 [2024-12-02 08:54:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:11,006 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 184 transitions. [2024-12-02 08:54:11,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 184 transitions. [2024-12-02 08:54:11,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 08:54:11,009 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:11,009 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:11,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:54:11,009 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:11,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:11,010 INFO L85 PathProgramCache]: Analyzing trace with hash -872708680, now seen corresponding path program 1 times [2024-12-02 08:54:11,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:11,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056316401] [2024-12-02 08:54:11,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:11,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:12,056 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:12,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056316401] [2024-12-02 08:54:12,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056316401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:12,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:12,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:54:12,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962732171] [2024-12-02 08:54:12,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:12,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:54:12,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:12,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:54:12,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:54:12,058 INFO L87 Difference]: Start difference. First operand 132 states and 184 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:54:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:12,570 INFO L93 Difference]: Finished difference Result 283 states and 397 transitions. [2024-12-02 08:54:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:54:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2024-12-02 08:54:12,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:12,574 INFO L225 Difference]: With dead ends: 283 [2024-12-02 08:54:12,574 INFO L226 Difference]: Without dead ends: 179 [2024-12-02 08:54:12,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:54:12,575 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 339 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:12,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 332 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:54:12,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-12-02 08:54:12,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 140. [2024-12-02 08:54:12,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 108 states have (on average 1.287037037037037) internal successors, (139), 109 states have internal predecessors, (139), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 197 transitions. [2024-12-02 08:54:12,601 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 197 transitions. Word has length 145 [2024-12-02 08:54:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:12,602 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 197 transitions. [2024-12-02 08:54:12,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 08:54:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 197 transitions. [2024-12-02 08:54:12,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:54:12,604 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:12,604 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:12,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:54:12,604 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:12,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:12,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1111641874, now seen corresponding path program 1 times [2024-12-02 08:54:12,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:12,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300939153] [2024-12-02 08:54:12,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:12,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:15,287 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:15,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300939153] [2024-12-02 08:54:15,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300939153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:15,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:15,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:54:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553365975] [2024-12-02 08:54:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:15,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:54:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:15,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:54:15,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:54:15,289 INFO L87 Difference]: Start difference. First operand 140 states and 197 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:16,098 INFO L93 Difference]: Finished difference Result 304 states and 428 transitions. [2024-12-02 08:54:16,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:54:16,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 146 [2024-12-02 08:54:16,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:16,101 INFO L225 Difference]: With dead ends: 304 [2024-12-02 08:54:16,101 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 08:54:16,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:54:16,102 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 294 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:16,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 576 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:54:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 08:54:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 153. [2024-12-02 08:54:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 121 states have (on average 1.3057851239669422) internal successors, (158), 122 states have internal predecessors, (158), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:16,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 216 transitions. [2024-12-02 08:54:16,122 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 216 transitions. Word has length 146 [2024-12-02 08:54:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:16,122 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 216 transitions. [2024-12-02 08:54:16,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 216 transitions. [2024-12-02 08:54:16,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:54:16,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:16,124 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:16,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:54:16,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:16,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash 704073845, now seen corresponding path program 1 times [2024-12-02 08:54:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:16,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103351280] [2024-12-02 08:54:16,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:16,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:17,915 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:17,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103351280] [2024-12-02 08:54:17,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103351280] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:17,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:17,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:54:17,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936646642] [2024-12-02 08:54:17,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:17,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:54:17,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:17,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:54:17,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:54:17,917 INFO L87 Difference]: Start difference. First operand 153 states and 216 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:19,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:19,180 INFO L93 Difference]: Finished difference Result 360 states and 508 transitions. [2024-12-02 08:54:19,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:54:19,181 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 146 [2024-12-02 08:54:19,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:19,182 INFO L225 Difference]: With dead ends: 360 [2024-12-02 08:54:19,182 INFO L226 Difference]: Without dead ends: 235 [2024-12-02 08:54:19,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:54:19,183 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 485 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:19,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 431 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:54:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-12-02 08:54:19,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 188. [2024-12-02 08:54:19,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 156 states have (on average 1.3205128205128205) internal successors, (206), 157 states have internal predecessors, (206), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:19,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2024-12-02 08:54:19,206 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 146 [2024-12-02 08:54:19,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:19,206 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2024-12-02 08:54:19,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:19,206 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2024-12-02 08:54:19,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 08:54:19,207 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:19,207 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:19,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:54:19,208 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:19,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1492049167, now seen corresponding path program 1 times [2024-12-02 08:54:19,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:19,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985740323] [2024-12-02 08:54:19,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:19,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:19,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:19,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985740323] [2024-12-02 08:54:19,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985740323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:19,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:19,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:54:19,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669735636] [2024-12-02 08:54:19,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:19,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:54:19,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:19,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:54:19,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:54:19,845 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:20,271 INFO L93 Difference]: Finished difference Result 456 states and 639 transitions. [2024-12-02 08:54:20,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:54:20,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 146 [2024-12-02 08:54:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:20,273 INFO L225 Difference]: With dead ends: 456 [2024-12-02 08:54:20,273 INFO L226 Difference]: Without dead ends: 271 [2024-12-02 08:54:20,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:54:20,274 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 147 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:20,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 380 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:54:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-12-02 08:54:20,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 204. [2024-12-02 08:54:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 172 states have (on average 1.3255813953488371) internal successors, (228), 173 states have internal predecessors, (228), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 286 transitions. [2024-12-02 08:54:20,310 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 286 transitions. Word has length 146 [2024-12-02 08:54:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:20,311 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 286 transitions. [2024-12-02 08:54:20,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 286 transitions. [2024-12-02 08:54:20,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:20,313 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:20,313 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:20,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 08:54:20,313 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:20,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:20,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1887079423, now seen corresponding path program 1 times [2024-12-02 08:54:20,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:20,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624694961] [2024-12-02 08:54:20,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:23,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:23,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624694961] [2024-12-02 08:54:23,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624694961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:23,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:23,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:54:23,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836750594] [2024-12-02 08:54:23,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:23,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:54:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:23,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:54:23,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:54:23,236 INFO L87 Difference]: Start difference. First operand 204 states and 286 transitions. Second operand has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:24,111 INFO L93 Difference]: Finished difference Result 451 states and 631 transitions. [2024-12-02 08:54:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:54:24,111 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-12-02 08:54:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:24,113 INFO L225 Difference]: With dead ends: 451 [2024-12-02 08:54:24,113 INFO L226 Difference]: Without dead ends: 250 [2024-12-02 08:54:24,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:54:24,114 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 394 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:24,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 585 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:54:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-12-02 08:54:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 206. [2024-12-02 08:54:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 174 states have (on average 1.3275862068965518) internal successors, (231), 175 states have internal predecessors, (231), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2024-12-02 08:54:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 289 transitions. [2024-12-02 08:54:24,151 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 289 transitions. Word has length 147 [2024-12-02 08:54:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 289 transitions. [2024-12-02 08:54:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:24,152 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 289 transitions. [2024-12-02 08:54:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:24,153 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:24,153 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:24,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:54:24,153 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:24,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash -687424559, now seen corresponding path program 1 times [2024-12-02 08:54:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:24,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693685570] [2024-12-02 08:54:24,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:26,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:26,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693685570] [2024-12-02 08:54:26,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693685570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:26,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:26,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:54:26,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544184706] [2024-12-02 08:54:26,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:26,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:54:26,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:26,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:54:26,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:54:26,143 INFO L87 Difference]: Start difference. First operand 206 states and 289 transitions. Second operand has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:27,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:27,341 INFO L93 Difference]: Finished difference Result 486 states and 676 transitions. [2024-12-02 08:54:27,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:54:27,342 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-12-02 08:54:27,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:27,344 INFO L225 Difference]: With dead ends: 486 [2024-12-02 08:54:27,344 INFO L226 Difference]: Without dead ends: 283 [2024-12-02 08:54:27,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:54:27,345 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 364 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:27,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 564 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:54:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-12-02 08:54:27,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2024-12-02 08:54:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 228 states have (on average 1.293859649122807) internal successors, (295), 231 states have internal predecessors, (295), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:54:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 385 transitions. [2024-12-02 08:54:27,409 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 385 transitions. Word has length 147 [2024-12-02 08:54:27,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:27,409 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 385 transitions. [2024-12-02 08:54:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.230769230769231) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 385 transitions. [2024-12-02 08:54:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:27,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:27,411 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:27,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 08:54:27,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:27,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:27,411 INFO L85 PathProgramCache]: Analyzing trace with hash 143568852, now seen corresponding path program 1 times [2024-12-02 08:54:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706360413] [2024-12-02 08:54:27,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:27,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:28,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:28,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706360413] [2024-12-02 08:54:28,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706360413] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:28,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:28,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:54:28,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693130926] [2024-12-02 08:54:28,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:28,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:54:28,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:28,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:54:28,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:54:28,210 INFO L87 Difference]: Start difference. First operand 278 states and 385 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:28,656 INFO L93 Difference]: Finished difference Result 603 states and 834 transitions. [2024-12-02 08:54:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:54:28,656 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-12-02 08:54:28,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:28,658 INFO L225 Difference]: With dead ends: 603 [2024-12-02 08:54:28,659 INFO L226 Difference]: Without dead ends: 349 [2024-12-02 08:54:28,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:54:28,660 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 247 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:28,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 360 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:54:28,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-12-02 08:54:28,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 278. [2024-12-02 08:54:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 228 states have (on average 1.2894736842105263) internal successors, (294), 231 states have internal predecessors, (294), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:54:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 384 transitions. [2024-12-02 08:54:28,706 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 384 transitions. Word has length 147 [2024-12-02 08:54:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:28,706 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 384 transitions. [2024-12-02 08:54:28,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 384 transitions. [2024-12-02 08:54:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:28,707 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:28,707 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:28,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:54:28,708 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:28,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:28,708 INFO L85 PathProgramCache]: Analyzing trace with hash -838220110, now seen corresponding path program 1 times [2024-12-02 08:54:28,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:28,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602459184] [2024-12-02 08:54:28,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:28,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:30,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:30,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602459184] [2024-12-02 08:54:30,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602459184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:30,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:30,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:54:30,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646399139] [2024-12-02 08:54:30,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:30,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:54:30,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:30,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:54:30,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:54:30,740 INFO L87 Difference]: Start difference. First operand 278 states and 384 transitions. Second operand has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:31,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:31,735 INFO L93 Difference]: Finished difference Result 622 states and 856 transitions. [2024-12-02 08:54:31,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:54:31,735 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2024-12-02 08:54:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:31,737 INFO L225 Difference]: With dead ends: 622 [2024-12-02 08:54:31,737 INFO L226 Difference]: Without dead ends: 368 [2024-12-02 08:54:31,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:54:31,738 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 323 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:31,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 591 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:54:31,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-12-02 08:54:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 308. [2024-12-02 08:54:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 258 states have (on average 1.2945736434108528) internal successors, (334), 261 states have internal predecessors, (334), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 08:54:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 424 transitions. [2024-12-02 08:54:31,813 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 424 transitions. Word has length 147 [2024-12-02 08:54:31,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:31,813 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 424 transitions. [2024-12-02 08:54:31,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.230769230769231) internal successors, (55), 14 states have internal predecessors, (55), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:31,813 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 424 transitions. [2024-12-02 08:54:31,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:31,815 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:31,815 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:31,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 08:54:31,815 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:31,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:31,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2118083788, now seen corresponding path program 1 times [2024-12-02 08:54:31,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:31,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69463838] [2024-12-02 08:54:31,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:36,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69463838] [2024-12-02 08:54:36,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69463838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:36,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:36,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:54:36,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938276545] [2024-12-02 08:54:36,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:36,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:54:36,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:36,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:54:36,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:54:36,371 INFO L87 Difference]: Start difference. First operand 308 states and 424 transitions. Second operand has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:54:38,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:38,198 INFO L93 Difference]: Finished difference Result 667 states and 908 transitions. [2024-12-02 08:54:38,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:54:38,199 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 147 [2024-12-02 08:54:38,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:38,200 INFO L225 Difference]: With dead ends: 667 [2024-12-02 08:54:38,200 INFO L226 Difference]: Without dead ends: 383 [2024-12-02 08:54:38,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:54:38,201 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 247 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:38,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 584 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:54:38,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-12-02 08:54:38,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 376. [2024-12-02 08:54:38,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 319 states have (on average 1.2821316614420062) internal successors, (409), 324 states have internal predecessors, (409), 49 states have call successors, (49), 7 states have call predecessors, (49), 7 states have return successors, (49), 44 states have call predecessors, (49), 49 states have call successors, (49) [2024-12-02 08:54:38,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 507 transitions. [2024-12-02 08:54:38,262 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 507 transitions. Word has length 147 [2024-12-02 08:54:38,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:38,263 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 507 transitions. [2024-12-02 08:54:38,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:54:38,263 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 507 transitions. [2024-12-02 08:54:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:38,264 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:38,264 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:38,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:54:38,265 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:38,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:38,265 INFO L85 PathProgramCache]: Analyzing trace with hash -697671500, now seen corresponding path program 1 times [2024-12-02 08:54:38,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:38,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623092738] [2024-12-02 08:54:38,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:38,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:42,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:42,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623092738] [2024-12-02 08:54:42,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623092738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:42,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:42,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:54:42,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669940957] [2024-12-02 08:54:42,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:42,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:54:42,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:42,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:54:42,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:54:42,136 INFO L87 Difference]: Start difference. First operand 376 states and 507 transitions. Second operand has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:54:43,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:43,952 INFO L93 Difference]: Finished difference Result 776 states and 1042 transitions. [2024-12-02 08:54:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:54:43,953 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 147 [2024-12-02 08:54:43,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:43,954 INFO L225 Difference]: With dead ends: 776 [2024-12-02 08:54:43,954 INFO L226 Difference]: Without dead ends: 428 [2024-12-02 08:54:43,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:54:43,955 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 248 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:43,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 515 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:54:43,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-12-02 08:54:44,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 357. [2024-12-02 08:54:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 302 states have (on average 1.2748344370860927) internal successors, (385), 306 states have internal predecessors, (385), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:54:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 479 transitions. [2024-12-02 08:54:44,049 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 479 transitions. Word has length 147 [2024-12-02 08:54:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:44,049 INFO L471 AbstractCegarLoop]: Abstraction has 357 states and 479 transitions. [2024-12-02 08:54:44,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 4.583333333333333) internal successors, (55), 15 states have internal predecessors, (55), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:54:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 479 transitions. [2024-12-02 08:54:44,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 08:54:44,051 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:44,051 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:44,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:54:44,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:44,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1977535178, now seen corresponding path program 1 times [2024-12-02 08:54:44,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:44,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377843934] [2024-12-02 08:54:44,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:44,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377843934] [2024-12-02 08:54:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377843934] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:44,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:54:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166067443] [2024-12-02 08:54:44,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:44,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:54:44,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:44,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:54:44,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:54:44,661 INFO L87 Difference]: Start difference. First operand 357 states and 479 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:45,102 INFO L93 Difference]: Finished difference Result 738 states and 991 transitions. [2024-12-02 08:54:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:54:45,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 147 [2024-12-02 08:54:45,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:45,104 INFO L225 Difference]: With dead ends: 738 [2024-12-02 08:54:45,104 INFO L226 Difference]: Without dead ends: 409 [2024-12-02 08:54:45,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:54:45,106 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 143 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:45,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 790 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:54:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-12-02 08:54:45,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 349. [2024-12-02 08:54:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 294 states have (on average 1.2755102040816326) internal successors, (375), 298 states have internal predecessors, (375), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:54:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 469 transitions. [2024-12-02 08:54:45,209 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 469 transitions. Word has length 147 [2024-12-02 08:54:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:45,210 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 469 transitions. [2024-12-02 08:54:45,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:45,210 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 469 transitions. [2024-12-02 08:54:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:45,211 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:45,211 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:45,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:54:45,211 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:45,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:45,212 INFO L85 PathProgramCache]: Analyzing trace with hash 697585728, now seen corresponding path program 1 times [2024-12-02 08:54:45,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:45,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516758936] [2024-12-02 08:54:45,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:45,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:45,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:45,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516758936] [2024-12-02 08:54:45,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516758936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:45,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:54:45,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602914168] [2024-12-02 08:54:45,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:45,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:54:45,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:45,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:54:45,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:54:45,466 INFO L87 Difference]: Start difference. First operand 349 states and 469 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:45,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:45,684 INFO L93 Difference]: Finished difference Result 700 states and 942 transitions. [2024-12-02 08:54:45,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:54:45,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:54:45,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:45,686 INFO L225 Difference]: With dead ends: 700 [2024-12-02 08:54:45,686 INFO L226 Difference]: Without dead ends: 379 [2024-12-02 08:54:45,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:54:45,688 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 32 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:45,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 453 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:54:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-12-02 08:54:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 353. [2024-12-02 08:54:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 298 states have (on average 1.2751677852348993) internal successors, (380), 302 states have internal predecessors, (380), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-02 08:54:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 474 transitions. [2024-12-02 08:54:45,748 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 474 transitions. Word has length 148 [2024-12-02 08:54:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:45,748 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 474 transitions. [2024-12-02 08:54:45,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:54:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 474 transitions. [2024-12-02 08:54:45,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:45,749 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:45,749 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:45,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 08:54:45,749 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:45,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:45,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1475214440, now seen corresponding path program 1 times [2024-12-02 08:54:45,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531322258] [2024-12-02 08:54:45,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:46,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:46,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531322258] [2024-12-02 08:54:46,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531322258] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:46,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:46,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:54:46,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360476702] [2024-12-02 08:54:46,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:46,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:54:46,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:46,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:54:46,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:54:46,794 INFO L87 Difference]: Start difference. First operand 353 states and 474 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:47,567 INFO L93 Difference]: Finished difference Result 746 states and 1001 transitions. [2024-12-02 08:54:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:54:47,568 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-12-02 08:54:47,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:47,569 INFO L225 Difference]: With dead ends: 746 [2024-12-02 08:54:47,570 INFO L226 Difference]: Without dead ends: 421 [2024-12-02 08:54:47,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:54:47,570 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 514 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:47,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 348 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:54:47,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-12-02 08:54:47,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 362. [2024-12-02 08:54:47,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 304 states have (on average 1.2664473684210527) internal successors, (385), 308 states have internal predecessors, (385), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2024-12-02 08:54:47,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 483 transitions. [2024-12-02 08:54:47,633 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 483 transitions. Word has length 148 [2024-12-02 08:54:47,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:47,634 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 483 transitions. [2024-12-02 08:54:47,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 11 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:47,634 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 483 transitions. [2024-12-02 08:54:47,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:47,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:47,634 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:47,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 08:54:47,635 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:47,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:47,635 INFO L85 PathProgramCache]: Analyzing trace with hash -113133462, now seen corresponding path program 1 times [2024-12-02 08:54:47,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:47,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077993999] [2024-12-02 08:54:47,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:47,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:48,555 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:48,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:48,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077993999] [2024-12-02 08:54:48,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077993999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:48,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:48,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:54:48,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786701088] [2024-12-02 08:54:48,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:48,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:54:48,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:48,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:54:48,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:54:48,557 INFO L87 Difference]: Start difference. First operand 362 states and 483 transitions. Second operand has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:49,347 INFO L93 Difference]: Finished difference Result 734 states and 982 transitions. [2024-12-02 08:54:49,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:54:49,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-12-02 08:54:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:49,350 INFO L225 Difference]: With dead ends: 734 [2024-12-02 08:54:49,350 INFO L226 Difference]: Without dead ends: 408 [2024-12-02 08:54:49,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:54:49,351 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 210 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:49,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 470 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:54:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-12-02 08:54:49,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 405. [2024-12-02 08:54:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 338 states have (on average 1.257396449704142) internal successors, (425), 343 states have internal predecessors, (425), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:54:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 539 transitions. [2024-12-02 08:54:49,490 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 539 transitions. Word has length 148 [2024-12-02 08:54:49,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:49,490 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 539 transitions. [2024-12-02 08:54:49,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:49,490 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 539 transitions. [2024-12-02 08:54:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:49,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:49,491 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:49,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 08:54:49,492 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:49,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:49,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2142052996, now seen corresponding path program 1 times [2024-12-02 08:54:49,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:49,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425744042] [2024-12-02 08:54:49,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:51,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:51,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425744042] [2024-12-02 08:54:51,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425744042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:51,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:51,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:54:51,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920255221] [2024-12-02 08:54:51,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:51,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:54:51,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:51,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:54:51,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:54:51,898 INFO L87 Difference]: Start difference. First operand 405 states and 539 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:53,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:53,229 INFO L93 Difference]: Finished difference Result 831 states and 1109 transitions. [2024-12-02 08:54:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:54:53,230 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2024-12-02 08:54:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:53,232 INFO L225 Difference]: With dead ends: 831 [2024-12-02 08:54:53,232 INFO L226 Difference]: Without dead ends: 462 [2024-12-02 08:54:53,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:54:53,233 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 443 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:53,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 560 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:54:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-12-02 08:54:53,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 456. [2024-12-02 08:54:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 380 states have (on average 1.2552631578947369) internal successors, (477), 386 states have internal predecessors, (477), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 59 states have call predecessors, (65), 65 states have call successors, (65) [2024-12-02 08:54:53,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 607 transitions. [2024-12-02 08:54:53,324 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 607 transitions. Word has length 148 [2024-12-02 08:54:53,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:53,324 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 607 transitions. [2024-12-02 08:54:53,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 17 states have internal predecessors, (56), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:54:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 607 transitions. [2024-12-02 08:54:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:53,325 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:53,325 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:53,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 08:54:53,325 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:53,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1673669073, now seen corresponding path program 1 times [2024-12-02 08:54:53,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:53,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973220089] [2024-12-02 08:54:53,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:53,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:54:55,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:55,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973220089] [2024-12-02 08:54:55,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973220089] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:55,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:55,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:54:55,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85204145] [2024-12-02 08:54:55,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:55,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:54:55,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:55,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:54:55,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:54:55,129 INFO L87 Difference]: Start difference. First operand 456 states and 607 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:56,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:56,288 INFO L93 Difference]: Finished difference Result 1012 states and 1345 transitions. [2024-12-02 08:54:56,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:54:56,289 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-12-02 08:54:56,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:56,291 INFO L225 Difference]: With dead ends: 1012 [2024-12-02 08:54:56,291 INFO L226 Difference]: Without dead ends: 592 [2024-12-02 08:54:56,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:54:56,292 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 276 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:56,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 723 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:54:56,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-12-02 08:54:56,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 474. [2024-12-02 08:54:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 398 states have (on average 1.2512562814070352) internal successors, (498), 404 states have internal predecessors, (498), 65 states have call successors, (65), 10 states have call predecessors, (65), 10 states have return successors, (65), 59 states have call predecessors, (65), 65 states have call successors, (65) [2024-12-02 08:54:56,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 628 transitions. [2024-12-02 08:54:56,387 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 628 transitions. Word has length 148 [2024-12-02 08:54:56,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:56,387 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 628 transitions. [2024-12-02 08:54:56,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:54:56,388 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 628 transitions. [2024-12-02 08:54:56,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:54:56,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:56,388 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:54:56,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 08:54:56,388 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:56,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:56,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1341434545, now seen corresponding path program 1 times [2024-12-02 08:54:56,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:56,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212653446] [2024-12-02 08:54:56,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:56,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:01,788 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:01,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:01,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212653446] [2024-12-02 08:55:01,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212653446] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:01,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:01,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:55:01,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933498814] [2024-12-02 08:55:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:01,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:55:01,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:01,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:55:01,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:55:01,790 INFO L87 Difference]: Start difference. First operand 474 states and 628 transitions. Second operand has 14 states, 11 states have (on average 5.090909090909091) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:55:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:03,444 INFO L93 Difference]: Finished difference Result 1053 states and 1389 transitions. [2024-12-02 08:55:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:55:03,445 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 5.090909090909091) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 148 [2024-12-02 08:55:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:03,448 INFO L225 Difference]: With dead ends: 1053 [2024-12-02 08:55:03,448 INFO L226 Difference]: Without dead ends: 615 [2024-12-02 08:55:03,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:55:03,450 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 248 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:03,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 524 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:55:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-12-02 08:55:03,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 497. [2024-12-02 08:55:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 418 states have (on average 1.2511961722488039) internal successors, (523), 425 states have internal predecessors, (523), 67 states have call successors, (67), 11 states have call predecessors, (67), 11 states have return successors, (67), 60 states have call predecessors, (67), 67 states have call successors, (67) [2024-12-02 08:55:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 657 transitions. [2024-12-02 08:55:03,615 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 657 transitions. Word has length 148 [2024-12-02 08:55:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:03,615 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 657 transitions. [2024-12-02 08:55:03,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 5.090909090909091) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:55:03,615 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 657 transitions. [2024-12-02 08:55:03,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:55:03,616 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:03,617 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:03,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 08:55:03,617 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:03,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1611629459, now seen corresponding path program 1 times [2024-12-02 08:55:03,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:03,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925100464] [2024-12-02 08:55:03,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:09,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:09,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925100464] [2024-12-02 08:55:09,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925100464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:09,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:09,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:55:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463821016] [2024-12-02 08:55:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:09,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:55:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:09,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:55:09,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:55:09,372 INFO L87 Difference]: Start difference. First operand 497 states and 657 transitions. Second operand has 17 states, 14 states have (on average 4.0) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:55:11,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:11,838 INFO L93 Difference]: Finished difference Result 1078 states and 1419 transitions. [2024-12-02 08:55:11,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:55:11,839 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.0) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) Word has length 148 [2024-12-02 08:55:11,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:11,842 INFO L225 Difference]: With dead ends: 1078 [2024-12-02 08:55:11,842 INFO L226 Difference]: Without dead ends: 617 [2024-12-02 08:55:11,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:55:11,844 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 474 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:11,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 601 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 08:55:11,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-12-02 08:55:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 419. [2024-12-02 08:55:11,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 352 states have (on average 1.2556818181818181) internal successors, (442), 357 states have internal predecessors, (442), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:11,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 556 transitions. [2024-12-02 08:55:11,956 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 556 transitions. Word has length 148 [2024-12-02 08:55:11,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:11,956 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 556 transitions. [2024-12-02 08:55:11,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.0) internal successors, (56), 17 states have internal predecessors, (56), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:55:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 556 transitions. [2024-12-02 08:55:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:55:11,957 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:11,958 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:11,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 08:55:11,958 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:11,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:11,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1403474159, now seen corresponding path program 1 times [2024-12-02 08:55:11,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:11,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413163165] [2024-12-02 08:55:11,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:12,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:12,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413163165] [2024-12-02 08:55:12,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413163165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:12,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:12,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:55:12,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784628187] [2024-12-02 08:55:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:12,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:55:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:12,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:55:12,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:55:12,534 INFO L87 Difference]: Start difference. First operand 419 states and 556 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:55:13,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:13,006 INFO L93 Difference]: Finished difference Result 862 states and 1144 transitions. [2024-12-02 08:55:13,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:55:13,007 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 148 [2024-12-02 08:55:13,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:13,008 INFO L225 Difference]: With dead ends: 862 [2024-12-02 08:55:13,008 INFO L226 Difference]: Without dead ends: 479 [2024-12-02 08:55:13,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:55:13,009 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 189 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:13,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 780 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:55:13,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-12-02 08:55:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 401. [2024-12-02 08:55:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 334 states have (on average 1.2604790419161678) internal successors, (421), 339 states have internal predecessors, (421), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 535 transitions. [2024-12-02 08:55:13,101 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 535 transitions. Word has length 148 [2024-12-02 08:55:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:13,102 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 535 transitions. [2024-12-02 08:55:13,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:55:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 535 transitions. [2024-12-02 08:55:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 08:55:13,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:13,103 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:13,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 08:55:13,103 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:13,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1371141893, now seen corresponding path program 1 times [2024-12-02 08:55:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:13,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635949176] [2024-12-02 08:55:13,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:13,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:14,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:14,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635949176] [2024-12-02 08:55:14,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635949176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:14,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:14,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:55:14,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629449361] [2024-12-02 08:55:14,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:14,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:55:14,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:14,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:55:14,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:55:14,944 INFO L87 Difference]: Start difference. First operand 401 states and 535 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:16,552 INFO L93 Difference]: Finished difference Result 872 states and 1173 transitions. [2024-12-02 08:55:16,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:55:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2024-12-02 08:55:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:16,555 INFO L225 Difference]: With dead ends: 872 [2024-12-02 08:55:16,555 INFO L226 Difference]: Without dead ends: 507 [2024-12-02 08:55:16,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2024-12-02 08:55:16,556 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 336 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:16,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 838 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:55:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-12-02 08:55:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 430. [2024-12-02 08:55:16,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 363 states have (on average 1.2754820936639117) internal successors, (463), 368 states have internal predecessors, (463), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:16,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 577 transitions. [2024-12-02 08:55:16,650 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 577 transitions. Word has length 148 [2024-12-02 08:55:16,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:16,650 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 577 transitions. [2024-12-02 08:55:16,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:16,650 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 577 transitions. [2024-12-02 08:55:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:55:16,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:16,652 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:16,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 08:55:16,652 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:16,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1462895876, now seen corresponding path program 1 times [2024-12-02 08:55:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:16,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276868334] [2024-12-02 08:55:16,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:16,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:20,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276868334] [2024-12-02 08:55:20,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276868334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:20,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:20,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:55:20,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415048074] [2024-12-02 08:55:20,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:20,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:55:20,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:20,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:55:20,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:55:20,005 INFO L87 Difference]: Start difference. First operand 430 states and 577 transitions. Second operand has 13 states, 11 states have (on average 5.181818181818182) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:55:21,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:21,384 INFO L93 Difference]: Finished difference Result 911 states and 1224 transitions. [2024-12-02 08:55:21,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:55:21,385 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.181818181818182) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 149 [2024-12-02 08:55:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:21,387 INFO L225 Difference]: With dead ends: 911 [2024-12-02 08:55:21,387 INFO L226 Difference]: Without dead ends: 517 [2024-12-02 08:55:21,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:55:21,388 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 317 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:21,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 634 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:55:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2024-12-02 08:55:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 467. [2024-12-02 08:55:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 400 states have (on average 1.2775) internal successors, (511), 405 states have internal predecessors, (511), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:21,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 625 transitions. [2024-12-02 08:55:21,474 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 625 transitions. Word has length 149 [2024-12-02 08:55:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:21,474 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 625 transitions. [2024-12-02 08:55:21,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.181818181818182) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:55:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 625 transitions. [2024-12-02 08:55:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:55:21,476 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:21,476 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:21,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 08:55:21,476 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:21,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:21,476 INFO L85 PathProgramCache]: Analyzing trace with hash -2122814915, now seen corresponding path program 1 times [2024-12-02 08:55:21,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:21,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396024219] [2024-12-02 08:55:21,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:21,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:22,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:22,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396024219] [2024-12-02 08:55:22,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396024219] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:22,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:22,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:55:22,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820450290] [2024-12-02 08:55:22,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:22,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:55:22,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:22,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:55:22,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:55:22,763 INFO L87 Difference]: Start difference. First operand 467 states and 625 transitions. Second operand has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:23,548 INFO L93 Difference]: Finished difference Result 880 states and 1180 transitions. [2024-12-02 08:55:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:55:23,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-12-02 08:55:23,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:23,550 INFO L225 Difference]: With dead ends: 880 [2024-12-02 08:55:23,550 INFO L226 Difference]: Without dead ends: 449 [2024-12-02 08:55:23,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:55:23,551 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 309 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:23,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 367 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 08:55:23,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-12-02 08:55:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 447. [2024-12-02 08:55:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 380 states have (on average 1.2578947368421052) internal successors, (478), 385 states have internal predecessors, (478), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 592 transitions. [2024-12-02 08:55:23,649 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 592 transitions. Word has length 149 [2024-12-02 08:55:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:23,649 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 592 transitions. [2024-12-02 08:55:23,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.333333333333333) internal successors, (57), 10 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 592 transitions. [2024-12-02 08:55:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 08:55:23,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:23,651 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 08:55:23,651 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:23,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1291821504, now seen corresponding path program 1 times [2024-12-02 08:55:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22465165] [2024-12-02 08:55:23,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:26,651 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:26,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:26,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22465165] [2024-12-02 08:55:26,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22465165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:26,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:26,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 08:55:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132522305] [2024-12-02 08:55:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:26,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 08:55:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:26,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 08:55:26,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:55:26,652 INFO L87 Difference]: Start difference. First operand 447 states and 592 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:28,789 INFO L93 Difference]: Finished difference Result 949 states and 1264 transitions. [2024-12-02 08:55:28,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:55:28,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 149 [2024-12-02 08:55:28,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:28,791 INFO L225 Difference]: With dead ends: 949 [2024-12-02 08:55:28,791 INFO L226 Difference]: Without dead ends: 538 [2024-12-02 08:55:28,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=138, Invalid=674, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:55:28,792 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 178 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:28,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 886 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:55:28,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-12-02 08:55:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 455. [2024-12-02 08:55:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 388 states have (on average 1.2577319587628866) internal successors, (488), 393 states have internal predecessors, (488), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 602 transitions. [2024-12-02 08:55:28,882 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 602 transitions. Word has length 149 [2024-12-02 08:55:28,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:28,882 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 602 transitions. [2024-12-02 08:55:28,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:55:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 602 transitions. [2024-12-02 08:55:28,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:55:28,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:28,883 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:28,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 08:55:28,883 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:28,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:28,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1261388487, now seen corresponding path program 1 times [2024-12-02 08:55:28,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:28,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167033744] [2024-12-02 08:55:28,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:28,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:29,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:29,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167033744] [2024-12-02 08:55:29,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167033744] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:29,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:29,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:55:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80947768] [2024-12-02 08:55:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:29,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:55:29,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:29,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:55:29,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:55:29,689 INFO L87 Difference]: Start difference. First operand 455 states and 602 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:55:30,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:30,531 INFO L93 Difference]: Finished difference Result 994 states and 1311 transitions. [2024-12-02 08:55:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:55:30,532 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:55:30,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:30,534 INFO L225 Difference]: With dead ends: 994 [2024-12-02 08:55:30,535 INFO L226 Difference]: Without dead ends: 575 [2024-12-02 08:55:30,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:55:30,536 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 214 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:30,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 877 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:55:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-12-02 08:55:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 512. [2024-12-02 08:55:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 445 states have (on average 1.2426966292134831) internal successors, (553), 450 states have internal predecessors, (553), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 667 transitions. [2024-12-02 08:55:30,632 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 667 transitions. Word has length 150 [2024-12-02 08:55:30,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:30,632 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 667 transitions. [2024-12-02 08:55:30,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:55:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 667 transitions. [2024-12-02 08:55:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:55:30,633 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:30,633 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:30,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 08:55:30,633 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:30,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:30,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1755326785, now seen corresponding path program 1 times [2024-12-02 08:55:30,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:30,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163921783] [2024-12-02 08:55:30,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:30,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:55:34,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163921783] [2024-12-02 08:55:34,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163921783] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:34,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:34,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:55:34,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888843279] [2024-12-02 08:55:34,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:34,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:55:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:34,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:55:34,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:55:34,459 INFO L87 Difference]: Start difference. First operand 512 states and 667 transitions. Second operand has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:55:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:35,926 INFO L93 Difference]: Finished difference Result 996 states and 1300 transitions. [2024-12-02 08:55:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:55:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:55:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:35,928 INFO L225 Difference]: With dead ends: 996 [2024-12-02 08:55:35,928 INFO L226 Difference]: Without dead ends: 520 [2024-12-02 08:55:35,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:55:35,930 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 214 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:35,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 558 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:55:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-12-02 08:55:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 478. [2024-12-02 08:55:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 411 states have (on average 1.2384428223844282) internal successors, (509), 416 states have internal predecessors, (509), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 08:55:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 623 transitions. [2024-12-02 08:55:36,089 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 623 transitions. Word has length 150 [2024-12-02 08:55:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:36,089 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 623 transitions. [2024-12-02 08:55:36,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.461538461538462) internal successors, (58), 15 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:55:36,089 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 623 transitions. [2024-12-02 08:55:36,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:55:36,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:36,090 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:36,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 08:55:36,090 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:36,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1116431264, now seen corresponding path program 1 times [2024-12-02 08:55:36,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:36,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503673298] [2024-12-02 08:55:36,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:36,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:14,170 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:56:14,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:14,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503673298] [2024-12-02 08:56:14,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503673298] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:56:14,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:56:14,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 08:56:14,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2875150] [2024-12-02 08:56:14,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:56:14,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:56:14,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:14,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:56:14,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=396, Unknown=3, NotChecked=0, Total=462 [2024-12-02 08:56:14,171 INFO L87 Difference]: Start difference. First operand 478 states and 623 transitions. Second operand has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:56:22,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:56:33,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:56:39,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:56:43,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:56:47,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:57:41,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:57:42,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:57:44,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:44,834 INFO L93 Difference]: Finished difference Result 1137 states and 1487 transitions. [2024-12-02 08:57:44,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 08:57:44,835 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) Word has length 150 [2024-12-02 08:57:44,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:44,837 INFO L225 Difference]: With dead ends: 1137 [2024-12-02 08:57:44,837 INFO L226 Difference]: Without dead ends: 695 [2024-12-02 08:57:44,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 76.1s TimeCoverageRelationStatistics Valid=186, Invalid=1135, Unknown=11, NotChecked=0, Total=1332 [2024-12-02 08:57:44,839 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 447 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 2182 mSolverCounterSat, 47 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 2233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2182 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:44,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 919 Invalid, 2233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2182 Invalid, 4 Unknown, 0 Unchecked, 35.6s Time] [2024-12-02 08:57:44,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-12-02 08:57:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 554. [2024-12-02 08:57:44,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 484 states have (on average 1.2541322314049588) internal successors, (607), 490 states have internal predecessors, (607), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:57:44,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 725 transitions. [2024-12-02 08:57:44,984 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 725 transitions. Word has length 150 [2024-12-02 08:57:44,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:44,984 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 725 transitions. [2024-12-02 08:57:44,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 22 states have internal predecessors, (58), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:57:44,984 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 725 transitions. [2024-12-02 08:57:44,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:57:44,985 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:44,985 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:44,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 08:57:44,985 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:44,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:44,985 INFO L85 PathProgramCache]: Analyzing trace with hash 95362910, now seen corresponding path program 1 times [2024-12-02 08:57:44,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:44,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678018189] [2024-12-02 08:57:44,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:57:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:57:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:57:47,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:57:47,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678018189] [2024-12-02 08:57:47,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678018189] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:57:47,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:57:47,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:57:47,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152122180] [2024-12-02 08:57:47,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:57:47,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:57:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:57:47,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:57:47,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:57:47,821 INFO L87 Difference]: Start difference. First operand 554 states and 725 transitions. Second operand has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:57:49,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:49,390 INFO L93 Difference]: Finished difference Result 1261 states and 1653 transitions. [2024-12-02 08:57:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:57:49,391 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:57:49,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:49,393 INFO L225 Difference]: With dead ends: 1261 [2024-12-02 08:57:49,393 INFO L226 Difference]: Without dead ends: 743 [2024-12-02 08:57:49,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:57:49,394 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 291 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:49,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 506 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:57:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2024-12-02 08:57:49,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 622. [2024-12-02 08:57:49,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 552 states have (on average 1.2572463768115942) internal successors, (694), 558 states have internal predecessors, (694), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:57:49,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 812 transitions. [2024-12-02 08:57:49,497 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 812 transitions. Word has length 150 [2024-12-02 08:57:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:49,498 INFO L471 AbstractCegarLoop]: Abstraction has 622 states and 812 transitions. [2024-12-02 08:57:49,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 13 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:57:49,498 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 812 transitions. [2024-12-02 08:57:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:57:49,498 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:49,498 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:49,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 08:57:49,499 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:49,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:49,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1178470878, now seen corresponding path program 1 times [2024-12-02 08:57:49,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:49,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893099041] [2024-12-02 08:57:49,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:57:49,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:57:52,766 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:57:52,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:57:52,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893099041] [2024-12-02 08:57:52,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893099041] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:57:52,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:57:52,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:57:52,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399306906] [2024-12-02 08:57:52,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:57:52,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:57:52,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:57:52,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:57:52,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:57:52,767 INFO L87 Difference]: Start difference. First operand 622 states and 812 transitions. Second operand has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:57:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:55,045 INFO L93 Difference]: Finished difference Result 1281 states and 1674 transitions. [2024-12-02 08:57:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:57:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:57:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:55,048 INFO L225 Difference]: With dead ends: 1281 [2024-12-02 08:57:55,048 INFO L226 Difference]: Without dead ends: 695 [2024-12-02 08:57:55,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:57:55,049 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 333 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:55,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 734 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:57:55,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-12-02 08:57:55,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 613. [2024-12-02 08:57:55,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 543 states have (on average 1.2486187845303867) internal successors, (678), 549 states have internal predecessors, (678), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:57:55,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 796 transitions. [2024-12-02 08:57:55,154 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 796 transitions. Word has length 150 [2024-12-02 08:57:55,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:55,154 INFO L471 AbstractCegarLoop]: Abstraction has 613 states and 796 transitions. [2024-12-02 08:57:55,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.142857142857143) internal successors, (58), 16 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:57:55,154 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 796 transitions. [2024-12-02 08:57:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:57:55,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:55,155 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:55,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 08:57:55,155 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:55,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:55,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2137056724, now seen corresponding path program 1 times [2024-12-02 08:57:55,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455381191] [2024-12-02 08:57:55,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:57:55,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:57:55,724 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:57:55,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:57:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455381191] [2024-12-02 08:57:55,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455381191] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:57:55,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:57:55,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 08:57:55,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044164512] [2024-12-02 08:57:55,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:57:55,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 08:57:55,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:57:55,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 08:57:55,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:57:55,725 INFO L87 Difference]: Start difference. First operand 613 states and 796 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:57:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:56,523 INFO L93 Difference]: Finished difference Result 1483 states and 1926 transitions. [2024-12-02 08:57:56,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:57:56,524 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 150 [2024-12-02 08:57:56,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:56,527 INFO L225 Difference]: With dead ends: 1483 [2024-12-02 08:57:56,528 INFO L226 Difference]: Without dead ends: 906 [2024-12-02 08:57:56,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:57:56,529 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 58 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:56,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 675 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:57:56,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-12-02 08:57:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 665. [2024-12-02 08:57:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 595 states have (on average 1.2571428571428571) internal successors, (748), 601 states have internal predecessors, (748), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:57:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 866 transitions. [2024-12-02 08:57:56,633 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 866 transitions. Word has length 150 [2024-12-02 08:57:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:56,634 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 866 transitions. [2024-12-02 08:57:56,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:57:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 866 transitions. [2024-12-02 08:57:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:57:56,634 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:56,634 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:56,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-12-02 08:57:56,635 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:56,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash -857193046, now seen corresponding path program 1 times [2024-12-02 08:57:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180764058] [2024-12-02 08:57:56,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:57:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:02,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180764058] [2024-12-02 08:58:02,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180764058] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:02,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:02,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:58:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423493108] [2024-12-02 08:58:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:02,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:58:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:02,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:58:02,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:02,172 INFO L87 Difference]: Start difference. First operand 665 states and 866 transitions. Second operand has 19 states, 16 states have (on average 3.625) internal successors, (58), 19 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:58:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:06,690 INFO L93 Difference]: Finished difference Result 1658 states and 2144 transitions. [2024-12-02 08:58:06,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 08:58:06,690 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.625) internal successors, (58), 19 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 150 [2024-12-02 08:58:06,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:06,694 INFO L225 Difference]: With dead ends: 1658 [2024-12-02 08:58:06,694 INFO L226 Difference]: Without dead ends: 1029 [2024-12-02 08:58:06,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-12-02 08:58:06,696 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 464 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:06,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 905 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 08:58:06,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2024-12-02 08:58:06,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 646. [2024-12-02 08:58:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 576 states have (on average 1.2482638888888888) internal successors, (719), 582 states have internal predecessors, (719), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:58:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 837 transitions. [2024-12-02 08:58:06,813 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 837 transitions. Word has length 150 [2024-12-02 08:58:06,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:06,813 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 837 transitions. [2024-12-02 08:58:06,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.625) internal successors, (58), 19 states have internal predecessors, (58), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:58:06,814 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 837 transitions. [2024-12-02 08:58:06,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:58:06,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:06,814 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:06,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-02 08:58:06,814 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:06,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:06,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1792332638, now seen corresponding path program 1 times [2024-12-02 08:58:06,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:06,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264710733] [2024-12-02 08:58:06,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:07,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264710733] [2024-12-02 08:58:07,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264710733] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:07,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:07,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:58:07,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102665139] [2024-12-02 08:58:07,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:07,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:58:07,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:07,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:58:07,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:58:07,379 INFO L87 Difference]: Start difference. First operand 646 states and 837 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:07,969 INFO L93 Difference]: Finished difference Result 1256 states and 1631 transitions. [2024-12-02 08:58:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:58:07,970 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-12-02 08:58:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:07,971 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 08:58:07,971 INFO L226 Difference]: Without dead ends: 646 [2024-12-02 08:58:07,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:58:07,972 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 112 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:07,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 259 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:58:07,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-12-02 08:58:08,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2024-12-02 08:58:08,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 576 states have (on average 1.2465277777777777) internal successors, (718), 582 states have internal predecessors, (718), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:58:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 836 transitions. [2024-12-02 08:58:08,084 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 836 transitions. Word has length 150 [2024-12-02 08:58:08,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:08,084 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 836 transitions. [2024-12-02 08:58:08,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:08,084 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 836 transitions. [2024-12-02 08:58:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:58:08,084 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:08,084 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:08,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-12-02 08:58:08,085 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:08,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:08,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1730293024, now seen corresponding path program 1 times [2024-12-02 08:58:08,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:08,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128219574] [2024-12-02 08:58:08,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:08,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:10,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128219574] [2024-12-02 08:58:10,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128219574] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:10,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:10,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:58:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86029415] [2024-12-02 08:58:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:10,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:58:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:10,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:58:10,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:58:10,749 INFO L87 Difference]: Start difference. First operand 646 states and 836 transitions. Second operand has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:12,271 INFO L93 Difference]: Finished difference Result 1416 states and 1830 transitions. [2024-12-02 08:58:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:58:12,272 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:58:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:12,277 INFO L225 Difference]: With dead ends: 1416 [2024-12-02 08:58:12,277 INFO L226 Difference]: Without dead ends: 806 [2024-12-02 08:58:12,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:12,278 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 237 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:12,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 499 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:58:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-12-02 08:58:12,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 624. [2024-12-02 08:58:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 554 states have (on average 1.2346570397111913) internal successors, (684), 560 states have internal predecessors, (684), 59 states have call successors, (59), 10 states have call predecessors, (59), 10 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:58:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 802 transitions. [2024-12-02 08:58:12,390 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 802 transitions. Word has length 150 [2024-12-02 08:58:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:12,391 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 802 transitions. [2024-12-02 08:58:12,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.833333333333333) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:12,391 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 802 transitions. [2024-12-02 08:58:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:58:12,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:12,391 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:12,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-12-02 08:58:12,392 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:12,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1543605918, now seen corresponding path program 1 times [2024-12-02 08:58:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:12,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149277138] [2024-12-02 08:58:12,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:13,623 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:13,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:13,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149277138] [2024-12-02 08:58:13,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149277138] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:13,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:13,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:58:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584407059] [2024-12-02 08:58:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:13,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:58:13,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:13,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:58:13,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:58:13,625 INFO L87 Difference]: Start difference. First operand 624 states and 802 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:14,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:14,933 INFO L93 Difference]: Finished difference Result 1326 states and 1702 transitions. [2024-12-02 08:58:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:58:14,934 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2024-12-02 08:58:14,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:14,936 INFO L225 Difference]: With dead ends: 1326 [2024-12-02 08:58:14,936 INFO L226 Difference]: Without dead ends: 738 [2024-12-02 08:58:14,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:14,937 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 301 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:14,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 565 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:58:14,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-12-02 08:58:15,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 734. [2024-12-02 08:58:15,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 647 states have (on average 1.230293663060278) internal successors, (796), 655 states have internal predecessors, (796), 71 states have call successors, (71), 15 states have call predecessors, (71), 15 states have return successors, (71), 63 states have call predecessors, (71), 71 states have call successors, (71) [2024-12-02 08:58:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 938 transitions. [2024-12-02 08:58:15,102 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 938 transitions. Word has length 150 [2024-12-02 08:58:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:15,102 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 938 transitions. [2024-12-02 08:58:15,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 938 transitions. [2024-12-02 08:58:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 08:58:15,103 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:15,103 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:15,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-12-02 08:58:15,104 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:15,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1549969260, now seen corresponding path program 1 times [2024-12-02 08:58:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152467810] [2024-12-02 08:58:15,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:16,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:16,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152467810] [2024-12-02 08:58:16,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152467810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:16,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:16,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:58:16,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711226594] [2024-12-02 08:58:16,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:16,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:58:16,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:16,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:58:16,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:58:16,492 INFO L87 Difference]: Start difference. First operand 734 states and 938 transitions. Second operand has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:17,858 INFO L93 Difference]: Finished difference Result 1607 states and 2059 transitions. [2024-12-02 08:58:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:58:17,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 150 [2024-12-02 08:58:17,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:17,861 INFO L225 Difference]: With dead ends: 1607 [2024-12-02 08:58:17,861 INFO L226 Difference]: Without dead ends: 913 [2024-12-02 08:58:17,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:58:17,863 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 384 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:17,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 648 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:58:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2024-12-02 08:58:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 909. [2024-12-02 08:58:18,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 802 states have (on average 1.229426433915212) internal successors, (986), 814 states have internal predecessors, (986), 87 states have call successors, (87), 19 states have call predecessors, (87), 19 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 08:58:18,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1160 transitions. [2024-12-02 08:58:18,080 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1160 transitions. Word has length 150 [2024-12-02 08:58:18,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:18,080 INFO L471 AbstractCegarLoop]: Abstraction has 909 states and 1160 transitions. [2024-12-02 08:58:18,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.461538461538462) internal successors, (58), 14 states have internal predecessors, (58), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1160 transitions. [2024-12-02 08:58:18,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:18,081 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:18,081 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:18,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-12-02 08:58:18,081 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:18,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1324756312, now seen corresponding path program 1 times [2024-12-02 08:58:18,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:18,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613100552] [2024-12-02 08:58:18,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:18,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:20,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:20,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613100552] [2024-12-02 08:58:20,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613100552] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:20,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:20,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 08:58:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372925263] [2024-12-02 08:58:20,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:20,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 08:58:20,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:20,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 08:58:20,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:58:20,168 INFO L87 Difference]: Start difference. First operand 909 states and 1160 transitions. Second operand has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:21,978 INFO L93 Difference]: Finished difference Result 1790 states and 2289 transitions. [2024-12-02 08:58:21,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:58:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-12-02 08:58:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:21,981 INFO L225 Difference]: With dead ends: 1790 [2024-12-02 08:58:21,981 INFO L226 Difference]: Without dead ends: 921 [2024-12-02 08:58:21,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:58:21,982 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 431 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:21,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 783 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1131 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:58:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-12-02 08:58:22,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 872. [2024-12-02 08:58:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 765 states have (on average 1.2339869281045752) internal successors, (944), 777 states have internal predecessors, (944), 87 states have call successors, (87), 19 states have call predecessors, (87), 19 states have return successors, (87), 75 states have call predecessors, (87), 87 states have call successors, (87) [2024-12-02 08:58:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1118 transitions. [2024-12-02 08:58:22,184 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1118 transitions. Word has length 151 [2024-12-02 08:58:22,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:22,184 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 1118 transitions. [2024-12-02 08:58:22,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.933333333333333) internal successors, (59), 16 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1118 transitions. [2024-12-02 08:58:22,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:22,185 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:22,185 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:22,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-02 08:58:22,186 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:22,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:22,186 INFO L85 PathProgramCache]: Analyzing trace with hash 2053589535, now seen corresponding path program 1 times [2024-12-02 08:58:22,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:22,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004504650] [2024-12-02 08:58:22,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:22,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:23,119 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:23,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:23,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004504650] [2024-12-02 08:58:23,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004504650] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:23,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:23,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:58:23,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107576405] [2024-12-02 08:58:23,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:23,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:58:23,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:23,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:58:23,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:58:23,120 INFO L87 Difference]: Start difference. First operand 872 states and 1118 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:24,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:24,142 INFO L93 Difference]: Finished difference Result 1705 states and 2188 transitions. [2024-12-02 08:58:24,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:58:24,143 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-12-02 08:58:24,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:24,148 INFO L225 Difference]: With dead ends: 1705 [2024-12-02 08:58:24,148 INFO L226 Difference]: Without dead ends: 873 [2024-12-02 08:58:24,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:58:24,149 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 341 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:24,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 451 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:58:24,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-12-02 08:58:24,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 675. [2024-12-02 08:58:24,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 599 states have (on average 1.2287145242070117) internal successors, (736), 606 states have internal predecessors, (736), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:58:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 858 transitions. [2024-12-02 08:58:24,310 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 858 transitions. Word has length 151 [2024-12-02 08:58:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:24,311 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 858 transitions. [2024-12-02 08:58:24,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:24,311 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 858 transitions. [2024-12-02 08:58:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:24,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:24,311 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:24,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-12-02 08:58:24,312 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:24,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:24,312 INFO L85 PathProgramCache]: Analyzing trace with hash -2009934197, now seen corresponding path program 1 times [2024-12-02 08:58:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:24,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587224328] [2024-12-02 08:58:24,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:24,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:24,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:24,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587224328] [2024-12-02 08:58:24,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587224328] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:24,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:24,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:58:24,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250990951] [2024-12-02 08:58:24,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:24,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:58:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:24,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:58:24,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:58:24,463 INFO L87 Difference]: Start difference. First operand 675 states and 858 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:58:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:24,784 INFO L93 Difference]: Finished difference Result 1349 states and 1716 transitions. [2024-12-02 08:58:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:58:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:58:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:24,787 INFO L225 Difference]: With dead ends: 1349 [2024-12-02 08:58:24,787 INFO L226 Difference]: Without dead ends: 706 [2024-12-02 08:58:24,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:58:24,788 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 54 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:24,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 357 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:58:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-12-02 08:58:24,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 684. [2024-12-02 08:58:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 608 states have (on average 1.225328947368421) internal successors, (745), 615 states have internal predecessors, (745), 61 states have call successors, (61), 14 states have call predecessors, (61), 14 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2024-12-02 08:58:24,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 867 transitions. [2024-12-02 08:58:24,947 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 867 transitions. Word has length 151 [2024-12-02 08:58:24,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:24,947 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 867 transitions. [2024-12-02 08:58:24,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:58:24,947 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 867 transitions. [2024-12-02 08:58:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:24,948 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:24,948 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:24,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-12-02 08:58:24,948 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:24,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:24,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1587232371, now seen corresponding path program 1 times [2024-12-02 08:58:24,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:24,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223014153] [2024-12-02 08:58:24,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:24,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:26,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223014153] [2024-12-02 08:58:26,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223014153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:26,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:26,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 08:58:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561456542] [2024-12-02 08:58:26,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:26,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:58:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:26,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:58:26,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:58:26,068 INFO L87 Difference]: Start difference. First operand 684 states and 867 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:27,447 INFO L93 Difference]: Finished difference Result 1492 states and 1892 transitions. [2024-12-02 08:58:27,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:58:27,448 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 151 [2024-12-02 08:58:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:27,450 INFO L225 Difference]: With dead ends: 1492 [2024-12-02 08:58:27,450 INFO L226 Difference]: Without dead ends: 840 [2024-12-02 08:58:27,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:58:27,451 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 449 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:27,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 441 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:58:27,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-12-02 08:58:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 788. [2024-12-02 08:58:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 692 states have (on average 1.2196531791907514) internal successors, (844), 701 states have internal predecessors, (844), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:58:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 998 transitions. [2024-12-02 08:58:27,680 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 998 transitions. Word has length 151 [2024-12-02 08:58:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:27,681 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 998 transitions. [2024-12-02 08:58:27,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:58:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 998 transitions. [2024-12-02 08:58:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:27,681 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:27,681 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:27,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-12-02 08:58:27,681 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:27,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:27,682 INFO L85 PathProgramCache]: Analyzing trace with hash -597916411, now seen corresponding path program 1 times [2024-12-02 08:58:27,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:27,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846400251] [2024-12-02 08:58:27,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:27,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:33,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:33,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846400251] [2024-12-02 08:58:33,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846400251] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:33,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:33,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:58:33,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213959181] [2024-12-02 08:58:33,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:33,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:58:33,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:33,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:58:33,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:33,751 INFO L87 Difference]: Start difference. First operand 788 states and 998 transitions. Second operand has 19 states, 16 states have (on average 3.6875) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:58:37,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:37,191 INFO L93 Difference]: Finished difference Result 1624 states and 2058 transitions. [2024-12-02 08:58:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:58:37,192 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 3.6875) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 151 [2024-12-02 08:58:37,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:37,194 INFO L225 Difference]: With dead ends: 1624 [2024-12-02 08:58:37,194 INFO L226 Difference]: Without dead ends: 868 [2024-12-02 08:58:37,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:58:37,196 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 270 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:37,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 887 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 08:58:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-12-02 08:58:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 783. [2024-12-02 08:58:37,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 687 states have (on average 1.2183406113537119) internal successors, (837), 696 states have internal predecessors, (837), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:58:37,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 991 transitions. [2024-12-02 08:58:37,424 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 991 transitions. Word has length 151 [2024-12-02 08:58:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:37,424 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 991 transitions. [2024-12-02 08:58:37,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 3.6875) internal successors, (59), 19 states have internal predecessors, (59), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:58:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 991 transitions. [2024-12-02 08:58:37,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:37,425 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:37,425 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:37,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-12-02 08:58:37,425 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:37,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1444372825, now seen corresponding path program 1 times [2024-12-02 08:58:37,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:37,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582623175] [2024-12-02 08:58:37,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:37,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:37,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582623175] [2024-12-02 08:58:37,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582623175] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:37,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:37,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 08:58:37,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785442829] [2024-12-02 08:58:37,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:37,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:58:37,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:37,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:58:37,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:58:37,602 INFO L87 Difference]: Start difference. First operand 783 states and 991 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:58:38,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:38,077 INFO L93 Difference]: Finished difference Result 1671 states and 2117 transitions. [2024-12-02 08:58:38,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:58:38,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 151 [2024-12-02 08:58:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:38,080 INFO L225 Difference]: With dead ends: 1671 [2024-12-02 08:58:38,080 INFO L226 Difference]: Without dead ends: 920 [2024-12-02 08:58:38,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:58:38,080 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 37 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:38,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 449 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:58:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-12-02 08:58:38,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 775. [2024-12-02 08:58:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 679 states have (on average 1.2135493372606774) internal successors, (824), 688 states have internal predecessors, (824), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:58:38,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 978 transitions. [2024-12-02 08:58:38,305 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 978 transitions. Word has length 151 [2024-12-02 08:58:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:38,306 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 978 transitions. [2024-12-02 08:58:38,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:58:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 978 transitions. [2024-12-02 08:58:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:38,307 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:38,307 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:38,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-12-02 08:58:38,307 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:38,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:38,308 INFO L85 PathProgramCache]: Analyzing trace with hash -164509147, now seen corresponding path program 1 times [2024-12-02 08:58:38,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:38,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093781369] [2024-12-02 08:58:38,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:38,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:43,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:43,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093781369] [2024-12-02 08:58:43,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093781369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:43,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:43,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:58:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773805577] [2024-12-02 08:58:43,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:43,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:58:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:43,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:58:43,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:43,755 INFO L87 Difference]: Start difference. First operand 775 states and 978 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:47,209 INFO L93 Difference]: Finished difference Result 1809 states and 2278 transitions. [2024-12-02 08:58:47,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 08:58:47,209 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:58:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:47,211 INFO L225 Difference]: With dead ends: 1809 [2024-12-02 08:58:47,212 INFO L226 Difference]: Without dead ends: 1066 [2024-12-02 08:58:47,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812 [2024-12-02 08:58:47,212 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 340 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:47,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 805 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 08:58:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-12-02 08:58:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 794. [2024-12-02 08:58:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 698 states have (on average 1.2220630372492836) internal successors, (853), 707 states have internal predecessors, (853), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:58:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1007 transitions. [2024-12-02 08:58:47,439 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1007 transitions. Word has length 151 [2024-12-02 08:58:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:47,439 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1007 transitions. [2024-12-02 08:58:47,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1007 transitions. [2024-12-02 08:58:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:47,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:47,440 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:47,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-12-02 08:58:47,440 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:47,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1640929187, now seen corresponding path program 1 times [2024-12-02 08:58:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:47,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193203316] [2024-12-02 08:58:47,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:47,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:53,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:53,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193203316] [2024-12-02 08:58:53,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193203316] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:53,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:53,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 08:58:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865024639] [2024-12-02 08:58:53,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:53,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 08:58:53,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:53,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 08:58:53,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:58:53,178 INFO L87 Difference]: Start difference. First operand 794 states and 1007 transitions. Second operand has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:57,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:57,114 INFO L93 Difference]: Finished difference Result 1614 states and 2048 transitions. [2024-12-02 08:58:57,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:58:57,115 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:58:57,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:57,117 INFO L225 Difference]: With dead ends: 1614 [2024-12-02 08:58:57,117 INFO L226 Difference]: Without dead ends: 852 [2024-12-02 08:58:57,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-12-02 08:58:57,118 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 159 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:57,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 757 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 08:58:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-12-02 08:58:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 780. [2024-12-02 08:58:57,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 684 states have (on average 1.2178362573099415) internal successors, (833), 693 states have internal predecessors, (833), 77 states have call successors, (77), 18 states have call predecessors, (77), 18 states have return successors, (77), 68 states have call predecessors, (77), 77 states have call successors, (77) [2024-12-02 08:58:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 987 transitions. [2024-12-02 08:58:57,343 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 987 transitions. Word has length 151 [2024-12-02 08:58:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:57,344 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 987 transitions. [2024-12-02 08:58:57,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 19 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:58:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 987 transitions. [2024-12-02 08:58:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:58:57,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:57,344 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:58:57,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-12-02 08:58:57,345 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:57,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1347943877, now seen corresponding path program 1 times [2024-12-02 08:58:57,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:57,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266060770] [2024-12-02 08:58:57,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:58:59,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:59,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266060770] [2024-12-02 08:58:59,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266060770] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:59,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:59,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:58:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403041163] [2024-12-02 08:58:59,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:59,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:58:59,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:59,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:58:59,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:58:59,274 INFO L87 Difference]: Start difference. First operand 780 states and 987 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:01,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:01,020 INFO L93 Difference]: Finished difference Result 1584 states and 2005 transitions. [2024-12-02 08:59:01,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:59:01,021 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:59:01,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:01,023 INFO L225 Difference]: With dead ends: 1584 [2024-12-02 08:59:01,023 INFO L226 Difference]: Without dead ends: 836 [2024-12-02 08:59:01,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:59:01,024 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 395 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:01,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 577 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 08:59:01,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-12-02 08:59:01,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 633. [2024-12-02 08:59:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 559 states have (on average 1.220035778175313) internal successors, (682), 565 states have internal predecessors, (682), 59 states have call successors, (59), 14 states have call predecessors, (59), 14 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:59:01,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 800 transitions. [2024-12-02 08:59:01,196 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 800 transitions. Word has length 151 [2024-12-02 08:59:01,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:01,197 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 800 transitions. [2024-12-02 08:59:01,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:01,197 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 800 transitions. [2024-12-02 08:59:01,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:59:01,198 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:01,198 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:01,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-12-02 08:59:01,198 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:01,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash 326875523, now seen corresponding path program 1 times [2024-12-02 08:59:01,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:01,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808661162] [2024-12-02 08:59:01,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:01,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:02,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:02,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808661162] [2024-12-02 08:59:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808661162] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:02,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:02,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 08:59:02,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088979202] [2024-12-02 08:59:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:02,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 08:59:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:02,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 08:59:02,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:59:02,992 INFO L87 Difference]: Start difference. First operand 633 states and 800 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:04,352 INFO L93 Difference]: Finished difference Result 1333 states and 1686 transitions. [2024-12-02 08:59:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 08:59:04,353 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:59:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:04,356 INFO L225 Difference]: With dead ends: 1333 [2024-12-02 08:59:04,356 INFO L226 Difference]: Without dead ends: 732 [2024-12-02 08:59:04,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-12-02 08:59:04,358 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 256 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:04,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 526 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:59:04,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-12-02 08:59:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 633. [2024-12-02 08:59:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 559 states have (on average 1.2164579606440071) internal successors, (680), 565 states have internal predecessors, (680), 59 states have call successors, (59), 14 states have call predecessors, (59), 14 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2024-12-02 08:59:04,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 798 transitions. [2024-12-02 08:59:04,526 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 798 transitions. Word has length 151 [2024-12-02 08:59:04,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:04,526 INFO L471 AbstractCegarLoop]: Abstraction has 633 states and 798 transitions. [2024-12-02 08:59:04,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 798 transitions. [2024-12-02 08:59:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 08:59:04,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:04,527 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:04,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-12-02 08:59:04,527 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:04,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:04,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1663561441, now seen corresponding path program 1 times [2024-12-02 08:59:04,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:04,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598414658] [2024-12-02 08:59:04,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:04,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598414658] [2024-12-02 08:59:07,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598414658] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:07,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:07,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 08:59:07,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053896106] [2024-12-02 08:59:07,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:07,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:59:07,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:07,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:59:07,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:59:07,821 INFO L87 Difference]: Start difference. First operand 633 states and 798 transitions. Second operand has 14 states, 12 states have (on average 4.916666666666667) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:09,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:09,269 INFO L93 Difference]: Finished difference Result 1230 states and 1551 transitions. [2024-12-02 08:59:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 08:59:09,270 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.916666666666667) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 151 [2024-12-02 08:59:09,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:09,272 INFO L225 Difference]: With dead ends: 1230 [2024-12-02 08:59:09,272 INFO L226 Difference]: Without dead ends: 629 [2024-12-02 08:59:09,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:59:09,273 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 277 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:09,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 533 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 08:59:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-12-02 08:59:09,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 523. [2024-12-02 08:59:09,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 459 states have (on average 1.198257080610022) internal successors, (550), 463 states have internal predecessors, (550), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:09,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 652 transitions. [2024-12-02 08:59:09,406 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 652 transitions. Word has length 151 [2024-12-02 08:59:09,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:09,407 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 652 transitions. [2024-12-02 08:59:09,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.916666666666667) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 08:59:09,407 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 652 transitions. [2024-12-02 08:59:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:09,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:09,407 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:09,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-12-02 08:59:09,408 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:09,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:09,408 INFO L85 PathProgramCache]: Analyzing trace with hash 265996938, now seen corresponding path program 1 times [2024-12-02 08:59:09,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:09,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57431809] [2024-12-02 08:59:09,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:09,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:10,466 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:10,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:10,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57431809] [2024-12-02 08:59:10,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57431809] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:10,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:10,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 08:59:10,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526419645] [2024-12-02 08:59:10,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:10,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 08:59:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:10,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 08:59:10,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 08:59:10,466 INFO L87 Difference]: Start difference. First operand 523 states and 652 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:11,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:11,508 INFO L93 Difference]: Finished difference Result 1105 states and 1383 transitions. [2024-12-02 08:59:11,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:59:11,508 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-12-02 08:59:11,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:11,510 INFO L225 Difference]: With dead ends: 1105 [2024-12-02 08:59:11,510 INFO L226 Difference]: Without dead ends: 614 [2024-12-02 08:59:11,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-12-02 08:59:11,511 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 402 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:11,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 392 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 08:59:11,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2024-12-02 08:59:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 467. [2024-12-02 08:59:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 403 states have (on average 1.2109181141439207) internal successors, (488), 407 states have internal predecessors, (488), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 590 transitions. [2024-12-02 08:59:11,655 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 590 transitions. Word has length 152 [2024-12-02 08:59:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:11,655 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 590 transitions. [2024-12-02 08:59:11,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 590 transitions. [2024-12-02 08:59:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:11,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:11,656 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:11,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-12-02 08:59:11,656 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:11,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:11,656 INFO L85 PathProgramCache]: Analyzing trace with hash 325681333, now seen corresponding path program 1 times [2024-12-02 08:59:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:11,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690055456] [2024-12-02 08:59:11,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:13,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:13,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690055456] [2024-12-02 08:59:13,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690055456] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:13,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:13,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:59:13,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207955768] [2024-12-02 08:59:13,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:13,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:59:13,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:13,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:59:13,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:59:13,978 INFO L87 Difference]: Start difference. First operand 467 states and 590 transitions. Second operand has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:59:15,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:15,182 INFO L93 Difference]: Finished difference Result 1137 states and 1435 transitions. [2024-12-02 08:59:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:59:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) Word has length 152 [2024-12-02 08:59:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:15,185 INFO L225 Difference]: With dead ends: 1137 [2024-12-02 08:59:15,185 INFO L226 Difference]: Without dead ends: 702 [2024-12-02 08:59:15,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-12-02 08:59:15,186 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 339 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:15,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 316 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:59:15,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-12-02 08:59:15,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 632. [2024-12-02 08:59:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 568 states have (on average 1.2095070422535212) internal successors, (687), 572 states have internal predecessors, (687), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 789 transitions. [2024-12-02 08:59:15,345 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 789 transitions. Word has length 152 [2024-12-02 08:59:15,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:15,345 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 789 transitions. [2024-12-02 08:59:15,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.454545454545454) internal successors, (60), 13 states have internal predecessors, (60), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:59:15,345 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 789 transitions. [2024-12-02 08:59:15,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:15,346 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:15,346 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:15,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-12-02 08:59:15,347 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:15,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1026745911, now seen corresponding path program 1 times [2024-12-02 08:59:15,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:15,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197715442] [2024-12-02 08:59:15,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:15,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:16,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197715442] [2024-12-02 08:59:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197715442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:16,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:16,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 08:59:16,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540522095] [2024-12-02 08:59:16,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:16,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 08:59:16,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:16,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:59:16,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:59:16,173 INFO L87 Difference]: Start difference. First operand 632 states and 789 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:16,879 INFO L93 Difference]: Finished difference Result 855 states and 1046 transitions. [2024-12-02 08:59:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 08:59:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:59:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:16,882 INFO L225 Difference]: With dead ends: 855 [2024-12-02 08:59:16,882 INFO L226 Difference]: Without dead ends: 853 [2024-12-02 08:59:16,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:59:16,883 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 188 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:16,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 493 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:59:16,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-12-02 08:59:17,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 815. [2024-12-02 08:59:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 751 states have (on average 1.1957390146471372) internal successors, (898), 755 states have internal predecessors, (898), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:17,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1000 transitions. [2024-12-02 08:59:17,029 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1000 transitions. Word has length 152 [2024-12-02 08:59:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:17,029 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1000 transitions. [2024-12-02 08:59:17,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:17,029 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1000 transitions. [2024-12-02 08:59:17,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:17,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:17,030 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:17,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-12-02 08:59:17,030 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:17,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1028592953, now seen corresponding path program 1 times [2024-12-02 08:59:17,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:17,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669199073] [2024-12-02 08:59:17,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:17,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:17,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:17,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669199073] [2024-12-02 08:59:17,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669199073] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:17,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:17,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:59:17,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912081961] [2024-12-02 08:59:17,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:17,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:59:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:17,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:59:17,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:59:17,355 INFO L87 Difference]: Start difference. First operand 815 states and 1000 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:17,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:17,853 INFO L93 Difference]: Finished difference Result 1636 states and 2004 transitions. [2024-12-02 08:59:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:59:17,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:59:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:17,856 INFO L225 Difference]: With dead ends: 1636 [2024-12-02 08:59:17,856 INFO L226 Difference]: Without dead ends: 853 [2024-12-02 08:59:17,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-12-02 08:59:17,857 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 186 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:17,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 375 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:59:17,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-12-02 08:59:18,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 815. [2024-12-02 08:59:18,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 751 states have (on average 1.1904127829560587) internal successors, (894), 755 states have internal predecessors, (894), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:18,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 996 transitions. [2024-12-02 08:59:18,006 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 996 transitions. Word has length 152 [2024-12-02 08:59:18,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:18,006 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 996 transitions. [2024-12-02 08:59:18,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:18,006 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 996 transitions. [2024-12-02 08:59:18,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:18,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:18,007 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:18,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-12-02 08:59:18,007 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:18,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:18,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1491366981, now seen corresponding path program 1 times [2024-12-02 08:59:18,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:18,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654748635] [2024-12-02 08:59:18,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:18,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:18,116 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-12-02 08:59:18,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654748635] [2024-12-02 08:59:18,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654748635] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:59:18,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530725502] [2024-12-02 08:59:18,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:18,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:59:18,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:59:18,118 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:59:18,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:59:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:18,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:59:18,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:59:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:18,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:59:18,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530725502] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:18,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:59:18,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-12-02 08:59:18,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430760923] [2024-12-02 08:59:18,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:18,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 08:59:18,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:18,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:59:18,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:59:18,381 INFO L87 Difference]: Start difference. First operand 815 states and 996 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:18,581 INFO L93 Difference]: Finished difference Result 1622 states and 1987 transitions. [2024-12-02 08:59:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:59:18,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:59:18,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:18,584 INFO L225 Difference]: With dead ends: 1622 [2024-12-02 08:59:18,584 INFO L226 Difference]: Without dead ends: 839 [2024-12-02 08:59:18,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:59:18,585 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:18,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 548 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:59:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-12-02 08:59:18,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 839. [2024-12-02 08:59:18,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 839 states, 775 states have (on average 1.1845161290322581) internal successors, (918), 779 states have internal predecessors, (918), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:18,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1020 transitions. [2024-12-02 08:59:18,735 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1020 transitions. Word has length 152 [2024-12-02 08:59:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:18,736 INFO L471 AbstractCegarLoop]: Abstraction has 839 states and 1020 transitions. [2024-12-02 08:59:18,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1020 transitions. [2024-12-02 08:59:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:18,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:18,737 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:18,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 08:59:18,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:59:18,937 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:18,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash -820971643, now seen corresponding path program 1 times [2024-12-02 08:59:18,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:18,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668040078] [2024-12-02 08:59:18,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:18,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:22,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:22,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668040078] [2024-12-02 08:59:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668040078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:22,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:59:22,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033353763] [2024-12-02 08:59:22,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:22,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:59:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:22,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:59:22,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:59:22,075 INFO L87 Difference]: Start difference. First operand 839 states and 1020 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:24,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:24,295 INFO L93 Difference]: Finished difference Result 1708 states and 2074 transitions. [2024-12-02 08:59:24,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 08:59:24,296 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-12-02 08:59:24,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:24,298 INFO L225 Difference]: With dead ends: 1708 [2024-12-02 08:59:24,298 INFO L226 Difference]: Without dead ends: 901 [2024-12-02 08:59:24,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:59:24,299 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 158 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:24,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 872 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 08:59:24,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2024-12-02 08:59:24,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 849. [2024-12-02 08:59:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 785 states have (on average 1.1834394904458598) internal successors, (929), 789 states have internal predecessors, (929), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1031 transitions. [2024-12-02 08:59:24,449 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1031 transitions. Word has length 152 [2024-12-02 08:59:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:24,450 INFO L471 AbstractCegarLoop]: Abstraction has 849 states and 1031 transitions. [2024-12-02 08:59:24,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 17 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:24,450 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1031 transitions. [2024-12-02 08:59:24,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:24,450 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:24,450 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:24,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-12-02 08:59:24,451 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:24,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1549299451, now seen corresponding path program 1 times [2024-12-02 08:59:24,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:24,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432989760] [2024-12-02 08:59:24,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:24,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:24,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:24,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:24,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432989760] [2024-12-02 08:59:24,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432989760] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:24,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:24,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:59:24,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800783189] [2024-12-02 08:59:24,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:24,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:59:24,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:24,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:59:24,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:59:24,975 INFO L87 Difference]: Start difference. First operand 849 states and 1031 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:25,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:25,541 INFO L93 Difference]: Finished difference Result 1630 states and 1981 transitions. [2024-12-02 08:59:25,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:59:25,542 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 152 [2024-12-02 08:59:25,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:25,544 INFO L225 Difference]: With dead ends: 1630 [2024-12-02 08:59:25,544 INFO L226 Difference]: Without dead ends: 813 [2024-12-02 08:59:25,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:59:25,545 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 114 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:25,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 318 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:59:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-12-02 08:59:25,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2024-12-02 08:59:25,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 749 states have (on average 1.1802403204272363) internal successors, (884), 753 states have internal predecessors, (884), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:25,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 986 transitions. [2024-12-02 08:59:25,694 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 986 transitions. Word has length 152 [2024-12-02 08:59:25,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:25,694 INFO L471 AbstractCegarLoop]: Abstraction has 813 states and 986 transitions. [2024-12-02 08:59:25,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 08:59:25,694 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 986 transitions. [2024-12-02 08:59:25,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-12-02 08:59:25,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:25,695 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:25,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-12-02 08:59:25,695 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:25,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:25,695 INFO L85 PathProgramCache]: Analyzing trace with hash 392114053, now seen corresponding path program 1 times [2024-12-02 08:59:25,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:25,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764497828] [2024-12-02 08:59:25,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:25,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:26,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:26,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764497828] [2024-12-02 08:59:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764497828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:26,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:26,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 08:59:26,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765856201] [2024-12-02 08:59:26,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:26,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 08:59:26,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:26,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 08:59:26,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-12-02 08:59:26,312 INFO L87 Difference]: Start difference. First operand 813 states and 986 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:27,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:27,029 INFO L93 Difference]: Finished difference Result 1630 states and 1973 transitions. [2024-12-02 08:59:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 08:59:27,030 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-12-02 08:59:27,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:27,032 INFO L225 Difference]: With dead ends: 1630 [2024-12-02 08:59:27,032 INFO L226 Difference]: Without dead ends: 849 [2024-12-02 08:59:27,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-12-02 08:59:27,033 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 185 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:27,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 1092 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:59:27,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-12-02 08:59:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 797. [2024-12-02 08:59:27,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 733 states have (on average 1.1759890859481583) internal successors, (862), 737 states have internal predecessors, (862), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:27,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 964 transitions. [2024-12-02 08:59:27,182 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 964 transitions. Word has length 152 [2024-12-02 08:59:27,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:27,182 INFO L471 AbstractCegarLoop]: Abstraction has 797 states and 964 transitions. [2024-12-02 08:59:27,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 08:59:27,182 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 964 transitions. [2024-12-02 08:59:27,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:59:27,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:27,183 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:27,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-12-02 08:59:27,183 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:27,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1941215064, now seen corresponding path program 1 times [2024-12-02 08:59:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:27,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824251620] [2024-12-02 08:59:27,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:27,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:33,389 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:33,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:33,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824251620] [2024-12-02 08:59:33,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824251620] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:33,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:33,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:59:33,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014940960] [2024-12-02 08:59:33,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:33,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:59:33,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:33,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:59:33,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:59:33,390 INFO L87 Difference]: Start difference. First operand 797 states and 964 transitions. Second operand has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:59:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:36,323 INFO L93 Difference]: Finished difference Result 1966 states and 2344 transitions. [2024-12-02 08:59:36,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 08:59:36,324 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) Word has length 153 [2024-12-02 08:59:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:36,326 INFO L225 Difference]: With dead ends: 1966 [2024-12-02 08:59:36,326 INFO L226 Difference]: Without dead ends: 1201 [2024-12-02 08:59:36,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:59:36,327 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 169 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:36,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 670 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 08:59:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2024-12-02 08:59:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 940. [2024-12-02 08:59:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 876 states have (on average 1.1609589041095891) internal successors, (1017), 880 states have internal predecessors, (1017), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1119 transitions. [2024-12-02 08:59:36,479 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1119 transitions. Word has length 153 [2024-12-02 08:59:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:36,479 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1119 transitions. [2024-12-02 08:59:36,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 08:59:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1119 transitions. [2024-12-02 08:59:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:59:36,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:36,480 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:36,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-12-02 08:59:36,480 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:36,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:36,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1652687654, now seen corresponding path program 1 times [2024-12-02 08:59:36,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:36,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992873012] [2024-12-02 08:59:36,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:36,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:44,998 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 08:59:44,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:59:44,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992873012] [2024-12-02 08:59:44,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992873012] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:59:44,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:59:44,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 08:59:44,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642620266] [2024-12-02 08:59:44,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:59:44,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 08:59:44,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:44,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 08:59:44,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:59:44,999 INFO L87 Difference]: Start difference. First operand 940 states and 1119 transitions. Second operand has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:59:58,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:59:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:58,569 INFO L93 Difference]: Finished difference Result 2084 states and 2474 transitions. [2024-12-02 08:59:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 08:59:58,570 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 153 [2024-12-02 08:59:58,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:58,572 INFO L225 Difference]: With dead ends: 2084 [2024-12-02 08:59:58,572 INFO L226 Difference]: Without dead ends: 1176 [2024-12-02 08:59:58,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2024-12-02 08:59:58,573 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 294 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 1582 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:58,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 824 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1582 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2024-12-02 08:59:58,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2024-12-02 08:59:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 992. [2024-12-02 08:59:58,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 928 states have (on average 1.1551724137931034) internal successors, (1072), 932 states have internal predecessors, (1072), 51 states have call successors, (51), 12 states have call predecessors, (51), 12 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2024-12-02 08:59:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1174 transitions. [2024-12-02 08:59:58,728 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1174 transitions. Word has length 153 [2024-12-02 08:59:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:58,728 INFO L471 AbstractCegarLoop]: Abstraction has 992 states and 1174 transitions. [2024-12-02 08:59:58,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 17 states have internal predecessors, (61), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 08:59:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1174 transitions. [2024-12-02 08:59:58,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 08:59:58,729 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:59:58,729 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:58,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-12-02 08:59:58,729 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:59:58,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:59:58,729 INFO L85 PathProgramCache]: Analyzing trace with hash 17987030, now seen corresponding path program 1 times [2024-12-02 08:59:58,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:59:58,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074967326] [2024-12-02 08:59:58,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:59:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:59:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:01,916 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:01,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:01,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074967326] [2024-12-02 09:00:01,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074967326] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:01,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:01,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 09:00:01,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334122172] [2024-12-02 09:00:01,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:01,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 09:00:01,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:01,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 09:00:01,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:00:01,918 INFO L87 Difference]: Start difference. First operand 992 states and 1174 transitions. Second operand has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:04,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:04,008 INFO L93 Difference]: Finished difference Result 2253 states and 2661 transitions. [2024-12-02 09:00:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:00:04,009 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 09:00:04,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:04,013 INFO L225 Difference]: With dead ends: 2253 [2024-12-02 09:00:04,013 INFO L226 Difference]: Without dead ends: 1293 [2024-12-02 09:00:04,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:00:04,014 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 292 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:04,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 686 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 09:00:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-12-02 09:00:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1043. [2024-12-02 09:00:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 976 states have (on average 1.151639344262295) internal successors, (1124), 981 states have internal predecessors, (1124), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1230 transitions. [2024-12-02 09:00:04,195 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1230 transitions. Word has length 153 [2024-12-02 09:00:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:04,196 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1230 transitions. [2024-12-02 09:00:04,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 15 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1230 transitions. [2024-12-02 09:00:04,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:00:04,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:04,197 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:04,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-12-02 09:00:04,197 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:04,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash 719051608, now seen corresponding path program 1 times [2024-12-02 09:00:04,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:04,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079034851] [2024-12-02 09:00:04,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:04,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:06,461 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:06,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:06,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079034851] [2024-12-02 09:00:06,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079034851] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:06,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:06,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 09:00:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685695905] [2024-12-02 09:00:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:06,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:00:06,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:06,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:00:06,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:00:06,462 INFO L87 Difference]: Start difference. First operand 1043 states and 1230 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:07,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:07,975 INFO L93 Difference]: Finished difference Result 2281 states and 2682 transitions. [2024-12-02 09:00:07,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:00:07,976 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 09:00:07,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:07,978 INFO L225 Difference]: With dead ends: 2281 [2024-12-02 09:00:07,978 INFO L226 Difference]: Without dead ends: 1270 [2024-12-02 09:00:07,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:00:07,979 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 165 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:07,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 583 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 09:00:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-12-02 09:00:08,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1150. [2024-12-02 09:00:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1083 states have (on average 1.1329639889196677) internal successors, (1227), 1088 states have internal predecessors, (1227), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:08,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 1333 transitions. [2024-12-02 09:00:08,174 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 1333 transitions. Word has length 153 [2024-12-02 09:00:08,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:08,175 INFO L471 AbstractCegarLoop]: Abstraction has 1150 states and 1333 transitions. [2024-12-02 09:00:08,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 1333 transitions. [2024-12-02 09:00:08,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:00:08,176 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:08,176 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:08,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-12-02 09:00:08,176 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:08,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1768736230, now seen corresponding path program 1 times [2024-12-02 09:00:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:08,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057670709] [2024-12-02 09:00:08,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:08,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:13,554 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:13,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:13,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057670709] [2024-12-02 09:00:13,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057670709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:13,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:13,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 09:00:13,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575556333] [2024-12-02 09:00:13,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:13,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 09:00:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:13,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 09:00:13,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:00:13,555 INFO L87 Difference]: Start difference. First operand 1150 states and 1333 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:17,274 INFO L93 Difference]: Finished difference Result 2565 states and 2965 transitions. [2024-12-02 09:00:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 09:00:17,275 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 09:00:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:17,278 INFO L225 Difference]: With dead ends: 2565 [2024-12-02 09:00:17,278 INFO L226 Difference]: Without dead ends: 1447 [2024-12-02 09:00:17,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-12-02 09:00:17,279 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 288 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:17,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 875 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 09:00:17,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-12-02 09:00:17,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1143. [2024-12-02 09:00:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1076 states have (on average 1.1328996282527881) internal successors, (1219), 1081 states have internal predecessors, (1219), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1325 transitions. [2024-12-02 09:00:17,452 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1325 transitions. Word has length 153 [2024-12-02 09:00:17,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:17,452 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1325 transitions. [2024-12-02 09:00:17,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1325 transitions. [2024-12-02 09:00:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:00:17,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:17,453 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:17,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-12-02 09:00:17,453 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:17,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash 958354346, now seen corresponding path program 1 times [2024-12-02 09:00:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160705886] [2024-12-02 09:00:17,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:17,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:22,865 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:22,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:22,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160705886] [2024-12-02 09:00:22,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160705886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:22,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:22,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-12-02 09:00:22,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791909938] [2024-12-02 09:00:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:22,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 09:00:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:22,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 09:00:22,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-12-02 09:00:22,866 INFO L87 Difference]: Start difference. First operand 1143 states and 1325 transitions. Second operand has 21 states, 19 states have (on average 3.210526315789474) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:27,599 INFO L93 Difference]: Finished difference Result 2379 states and 2751 transitions. [2024-12-02 09:00:27,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 09:00:27,599 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 3.210526315789474) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) Word has length 153 [2024-12-02 09:00:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:27,602 INFO L225 Difference]: With dead ends: 2379 [2024-12-02 09:00:27,602 INFO L226 Difference]: Without dead ends: 1268 [2024-12-02 09:00:27,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=172, Invalid=950, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 09:00:27,603 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 346 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:27,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1109 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 09:00:27,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-12-02 09:00:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1135. [2024-12-02 09:00:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1068 states have (on average 1.1310861423220975) internal successors, (1208), 1073 states have internal predecessors, (1208), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:27,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1314 transitions. [2024-12-02 09:00:27,771 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1314 transitions. Word has length 153 [2024-12-02 09:00:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:27,771 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1314 transitions. [2024-12-02 09:00:27,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 3.210526315789474) internal successors, (61), 21 states have internal predecessors, (61), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 09:00:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1314 transitions. [2024-12-02 09:00:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:00:27,772 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:27,772 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:27,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-12-02 09:00:27,773 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:27,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1531174616, now seen corresponding path program 1 times [2024-12-02 09:00:27,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:27,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51364274] [2024-12-02 09:00:27,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:27,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:31,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:31,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51364274] [2024-12-02 09:00:31,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51364274] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:31,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:31,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-12-02 09:00:31,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235306898] [2024-12-02 09:00:31,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:31,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 09:00:31,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:31,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 09:00:31,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-12-02 09:00:31,909 INFO L87 Difference]: Start difference. First operand 1135 states and 1314 transitions. Second operand has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:34,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:34,479 INFO L93 Difference]: Finished difference Result 2335 states and 2695 transitions. [2024-12-02 09:00:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 09:00:34,479 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 153 [2024-12-02 09:00:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:34,482 INFO L225 Difference]: With dead ends: 2335 [2024-12-02 09:00:34,482 INFO L226 Difference]: Without dead ends: 1232 [2024-12-02 09:00:34,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2024-12-02 09:00:34,483 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 202 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:34,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 890 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 09:00:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-12-02 09:00:34,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1125. [2024-12-02 09:00:34,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 1058 states have (on average 1.1294896030245747) internal successors, (1195), 1063 states have internal predecessors, (1195), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1301 transitions. [2024-12-02 09:00:34,653 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1301 transitions. Word has length 153 [2024-12-02 09:00:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:34,653 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1301 transitions. [2024-12-02 09:00:34,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.388888888888889) internal successors, (61), 19 states have internal predecessors, (61), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1301 transitions. [2024-12-02 09:00:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 09:00:34,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:34,654 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:34,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-12-02 09:00:34,654 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -654691030, now seen corresponding path program 1 times [2024-12-02 09:00:34,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:34,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176201805] [2024-12-02 09:00:34,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:34,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:35,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176201805] [2024-12-02 09:00:35,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176201805] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:35,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:35,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-12-02 09:00:35,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321388841] [2024-12-02 09:00:35,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:35,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 09:00:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:35,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 09:00:35,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-12-02 09:00:35,448 INFO L87 Difference]: Start difference. First operand 1125 states and 1301 transitions. Second operand has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:36,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:36,301 INFO L93 Difference]: Finished difference Result 2307 states and 2660 transitions. [2024-12-02 09:00:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 09:00:36,302 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 153 [2024-12-02 09:00:36,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:36,305 INFO L225 Difference]: With dead ends: 2307 [2024-12-02 09:00:36,305 INFO L226 Difference]: Without dead ends: 1214 [2024-12-02 09:00:36,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-12-02 09:00:36,306 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 184 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:36,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1093 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 09:00:36,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-12-02 09:00:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1107. [2024-12-02 09:00:36,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1040 states have (on average 1.1259615384615385) internal successors, (1171), 1045 states have internal predecessors, (1171), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1277 transitions. [2024-12-02 09:00:36,477 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1277 transitions. Word has length 153 [2024-12-02 09:00:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:36,477 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1277 transitions. [2024-12-02 09:00:36,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.066666666666666) internal successors, (61), 15 states have internal predecessors, (61), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1277 transitions. [2024-12-02 09:00:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:00:36,478 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:36,479 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:36,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-12-02 09:00:36,479 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:36,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:36,479 INFO L85 PathProgramCache]: Analyzing trace with hash 289664355, now seen corresponding path program 1 times [2024-12-02 09:00:36,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:36,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788806419] [2024-12-02 09:00:36,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:36,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:36,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:38,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:38,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788806419] [2024-12-02 09:00:38,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788806419] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:38,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:38,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 09:00:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425712603] [2024-12-02 09:00:38,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:38,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 09:00:38,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:38,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 09:00:38,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:00:38,548 INFO L87 Difference]: Start difference. First operand 1107 states and 1277 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:40,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:40,074 INFO L93 Difference]: Finished difference Result 2368 states and 2726 transitions. [2024-12-02 09:00:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:00:40,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 154 [2024-12-02 09:00:40,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:40,078 INFO L225 Difference]: With dead ends: 2368 [2024-12-02 09:00:40,078 INFO L226 Difference]: Without dead ends: 1293 [2024-12-02 09:00:40,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:00:40,079 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 236 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:40,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 506 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 09:00:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2024-12-02 09:00:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1172. [2024-12-02 09:00:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1105 states have (on average 1.1149321266968326) internal successors, (1232), 1110 states have internal predecessors, (1232), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1338 transitions. [2024-12-02 09:00:40,374 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1338 transitions. Word has length 154 [2024-12-02 09:00:40,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:40,375 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1338 transitions. [2024-12-02 09:00:40,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 09:00:40,375 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1338 transitions. [2024-12-02 09:00:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:00:40,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:40,376 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:40,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-12-02 09:00:40,377 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:40,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:40,377 INFO L85 PathProgramCache]: Analyzing trace with hash 867128544, now seen corresponding path program 1 times [2024-12-02 09:00:40,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:40,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188367795] [2024-12-02 09:00:40,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:40,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:40,951 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:40,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:40,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188367795] [2024-12-02 09:00:40,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188367795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:40,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:40,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 09:00:40,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875371365] [2024-12-02 09:00:40,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:40,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:00:40,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:40,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:00:40,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:00:40,952 INFO L87 Difference]: Start difference. First operand 1172 states and 1338 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:41,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:41,826 INFO L93 Difference]: Finished difference Result 2446 states and 2790 transitions. [2024-12-02 09:00:41,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 09:00:41,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 09:00:41,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:41,830 INFO L225 Difference]: With dead ends: 2446 [2024-12-02 09:00:41,830 INFO L226 Difference]: Without dead ends: 1306 [2024-12-02 09:00:41,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:00:41,831 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 80 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:41,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 743 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 09:00:41,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2024-12-02 09:00:42,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1194. [2024-12-02 09:00:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 1127 states have (on average 1.1126885536823425) internal successors, (1254), 1132 states have internal predecessors, (1254), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1360 transitions. [2024-12-02 09:00:42,125 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1360 transitions. Word has length 154 [2024-12-02 09:00:42,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:42,125 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1360 transitions. [2024-12-02 09:00:42,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 9 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1360 transitions. [2024-12-02 09:00:42,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:00:42,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:42,127 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:42,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-12-02 09:00:42,127 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:42,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:42,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1963407648, now seen corresponding path program 1 times [2024-12-02 09:00:42,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:42,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118391449] [2024-12-02 09:00:42,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:42,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:42,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118391449] [2024-12-02 09:00:42,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118391449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:42,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:42,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:00:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882397720] [2024-12-02 09:00:42,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:42,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:00:42,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:42,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:00:42,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:00:42,444 INFO L87 Difference]: Start difference. First operand 1194 states and 1360 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:42,982 INFO L93 Difference]: Finished difference Result 2404 states and 2735 transitions. [2024-12-02 09:00:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:42,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 154 [2024-12-02 09:00:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:42,985 INFO L225 Difference]: With dead ends: 2404 [2024-12-02 09:00:42,985 INFO L226 Difference]: Without dead ends: 1242 [2024-12-02 09:00:42,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:00:42,987 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 31 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:42,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 648 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:00:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-12-02 09:00:43,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1196. [2024-12-02 09:00:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 1129 states have (on average 1.112488928255093) internal successors, (1256), 1134 states have internal predecessors, (1256), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:43,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1362 transitions. [2024-12-02 09:00:43,201 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1362 transitions. Word has length 154 [2024-12-02 09:00:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:43,201 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1362 transitions. [2024-12-02 09:00:43,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1362 transitions. [2024-12-02 09:00:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 09:00:43,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:43,203 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:43,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-12-02 09:00:43,203 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:43,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:43,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1360742876, now seen corresponding path program 1 times [2024-12-02 09:00:43,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:43,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440255542] [2024-12-02 09:00:43,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:43,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:46,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:46,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440255542] [2024-12-02 09:00:46,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440255542] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:46,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:46,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 09:00:46,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133737990] [2024-12-02 09:00:46,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:46,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 09:00:46,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:46,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 09:00:46,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:00:46,832 INFO L87 Difference]: Start difference. First operand 1196 states and 1362 transitions. Second operand has 17 states, 14 states have (on average 4.428571428571429) internal successors, (62), 17 states have internal predecessors, (62), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 09:00:51,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:51,432 INFO L93 Difference]: Finished difference Result 2592 states and 2935 transitions. [2024-12-02 09:00:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 09:00:51,433 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.428571428571429) internal successors, (62), 17 states have internal predecessors, (62), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) Word has length 154 [2024-12-02 09:00:51,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:51,435 INFO L225 Difference]: With dead ends: 2592 [2024-12-02 09:00:51,435 INFO L226 Difference]: Without dead ends: 1428 [2024-12-02 09:00:51,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=184, Invalid=1006, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 09:00:51,437 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 454 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:51,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 863 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 09:00:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-12-02 09:00:51,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1182. [2024-12-02 09:00:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1115 states have (on average 1.1130044843049327) internal successors, (1241), 1120 states have internal predecessors, (1241), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1347 transitions. [2024-12-02 09:00:51,634 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1347 transitions. Word has length 154 [2024-12-02 09:00:51,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:51,634 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1347 transitions. [2024-12-02 09:00:51,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.428571428571429) internal successors, (62), 17 states have internal predecessors, (62), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 5 states have call successors, (19) [2024-12-02 09:00:51,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1347 transitions. [2024-12-02 09:00:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:00:51,635 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:51,635 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:51,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-12-02 09:00:51,635 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:51,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:51,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1708050179, now seen corresponding path program 1 times [2024-12-02 09:00:51,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:51,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531628818] [2024-12-02 09:00:51,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:51,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:51,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531628818] [2024-12-02 09:00:51,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531628818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:51,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:51,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:00:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588565045] [2024-12-02 09:00:51,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:51,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:00:51,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:51,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:00:51,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:00:51,990 INFO L87 Difference]: Start difference. First operand 1182 states and 1347 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:52,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:00:52,583 INFO L93 Difference]: Finished difference Result 2378 states and 2703 transitions. [2024-12-02 09:00:52,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:00:52,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 09:00:52,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:00:52,586 INFO L225 Difference]: With dead ends: 2378 [2024-12-02 09:00:52,586 INFO L226 Difference]: Without dead ends: 1228 [2024-12-02 09:00:52,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:00:52,587 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 30 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:00:52,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 525 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:00:52,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-12-02 09:00:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1172. [2024-12-02 09:00:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1105 states have (on average 1.1113122171945702) internal successors, (1228), 1110 states have internal predecessors, (1228), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:00:52,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1334 transitions. [2024-12-02 09:00:52,762 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1334 transitions. Word has length 155 [2024-12-02 09:00:52,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:00:52,763 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1334 transitions. [2024-12-02 09:00:52,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:00:52,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1334 transitions. [2024-12-02 09:00:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:00:52,764 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:00:52,764 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:00:52,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-12-02 09:00:52,764 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:00:52,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:00:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1721801789, now seen corresponding path program 1 times [2024-12-02 09:00:52,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:00:52,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332895996] [2024-12-02 09:00:52,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:00:52,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:00:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:00:58,128 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:00:58,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:00:58,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332895996] [2024-12-02 09:00:58,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332895996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:00:58,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:00:58,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 09:00:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280590102] [2024-12-02 09:00:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:00:58,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 09:00:58,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:00:58,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 09:00:58,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-12-02 09:00:58,129 INFO L87 Difference]: Start difference. First operand 1172 states and 1334 transitions. Second operand has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 09:01:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:00,708 INFO L93 Difference]: Finished difference Result 2455 states and 2795 transitions. [2024-12-02 09:01:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 09:01:00,709 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) Word has length 155 [2024-12-02 09:01:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:00,711 INFO L225 Difference]: With dead ends: 2455 [2024-12-02 09:01:00,711 INFO L226 Difference]: Without dead ends: 1311 [2024-12-02 09:01:00,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:01:00,712 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 341 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:00,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 474 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 09:01:00,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1311 states. [2024-12-02 09:01:00,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1311 to 1157. [2024-12-02 09:01:00,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1090 states have (on average 1.1036697247706422) internal successors, (1203), 1095 states have internal predecessors, (1203), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:01:00,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1309 transitions. [2024-12-02 09:01:00,889 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1309 transitions. Word has length 155 [2024-12-02 09:01:00,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:00,890 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1309 transitions. [2024-12-02 09:01:00,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.5) internal successors, (63), 17 states have internal predecessors, (63), 6 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 3 states have call predecessors, (19), 6 states have call successors, (19) [2024-12-02 09:01:00,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1309 transitions. [2024-12-02 09:01:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:01:00,891 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:00,891 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:00,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-12-02 09:01:00,891 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:00,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:00,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1134995775, now seen corresponding path program 1 times [2024-12-02 09:01:00,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:00,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366723530] [2024-12-02 09:01:00,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:02,268 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:01:02,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:02,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366723530] [2024-12-02 09:01:02,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366723530] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:02,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:02,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 09:01:02,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237799110] [2024-12-02 09:01:02,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:02,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 09:01:02,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:02,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 09:01:02,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:01:02,270 INFO L87 Difference]: Start difference. First operand 1157 states and 1309 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:02,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:02,926 INFO L93 Difference]: Finished difference Result 1171 states and 1326 transitions. [2024-12-02 09:01:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 09:01:02,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 09:01:02,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:02,929 INFO L225 Difference]: With dead ends: 1171 [2024-12-02 09:01:02,929 INFO L226 Difference]: Without dead ends: 1169 [2024-12-02 09:01:02,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-12-02 09:01:02,929 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 234 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:02,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 447 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:02,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-12-02 09:01:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1157. [2024-12-02 09:01:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1090 states have (on average 1.1036697247706422) internal successors, (1203), 1095 states have internal predecessors, (1203), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:01:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1309 transitions. [2024-12-02 09:01:03,107 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1309 transitions. Word has length 155 [2024-12-02 09:01:03,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:03,107 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1309 transitions. [2024-12-02 09:01:03,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1309 transitions. [2024-12-02 09:01:03,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:01:03,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:03,108 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:03,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-12-02 09:01:03,108 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:03,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:03,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1136842817, now seen corresponding path program 1 times [2024-12-02 09:01:03,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:03,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6108302] [2024-12-02 09:01:03,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:03,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:01:03,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:03,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6108302] [2024-12-02 09:01:03,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6108302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:03,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:03,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 09:01:03,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874534547] [2024-12-02 09:01:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:03,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 09:01:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:03,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 09:01:03,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 09:01:03,862 INFO L87 Difference]: Start difference. First operand 1157 states and 1309 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 09:01:04,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:04,408 INFO L93 Difference]: Finished difference Result 2282 states and 2581 transitions. [2024-12-02 09:01:04,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 09:01:04,408 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2024-12-02 09:01:04,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:04,410 INFO L225 Difference]: With dead ends: 2282 [2024-12-02 09:01:04,410 INFO L226 Difference]: Without dead ends: 1157 [2024-12-02 09:01:04,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:01:04,411 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 268 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:04,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 295 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 09:01:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2024-12-02 09:01:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 879. [2024-12-02 09:01:04,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 812 states have (on average 1.1194581280788178) internal successors, (909), 817 states have internal predecessors, (909), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:01:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1015 transitions. [2024-12-02 09:01:04,593 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1015 transitions. Word has length 155 [2024-12-02 09:01:04,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:04,594 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1015 transitions. [2024-12-02 09:01:04,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 09:01:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1015 transitions. [2024-12-02 09:01:04,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:01:04,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:04,595 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:04,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-12-02 09:01:04,595 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:04,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:04,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1383117117, now seen corresponding path program 1 times [2024-12-02 09:01:04,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:04,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544657519] [2024-12-02 09:01:04,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:01:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544657519] [2024-12-02 09:01:04,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544657519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 09:01:04,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 09:01:04,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 09:01:04,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421266939] [2024-12-02 09:01:04,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:04,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:04,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:04,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:04,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 09:01:04,921 INFO L87 Difference]: Start difference. First operand 879 states and 1015 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:05,381 INFO L93 Difference]: Finished difference Result 2044 states and 2327 transitions. [2024-12-02 09:01:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 09:01:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 09:01:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:05,384 INFO L225 Difference]: With dead ends: 2044 [2024-12-02 09:01:05,384 INFO L226 Difference]: Without dead ends: 1197 [2024-12-02 09:01:05,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-12-02 09:01:05,385 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 30 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:05,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 810 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 09:01:05,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-12-02 09:01:05,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1137. [2024-12-02 09:01:05,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1070 states have (on average 1.0981308411214954) internal successors, (1175), 1075 states have internal predecessors, (1175), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:01:05,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1281 transitions. [2024-12-02 09:01:05,572 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1281 transitions. Word has length 155 [2024-12-02 09:01:05,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:05,572 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1281 transitions. [2024-12-02 09:01:05,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:05,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1281 transitions. [2024-12-02 09:01:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:01:05,574 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:05,574 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:05,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-12-02 09:01:05,574 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:05,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:05,574 INFO L85 PathProgramCache]: Analyzing trace with hash 540110917, now seen corresponding path program 1 times [2024-12-02 09:01:05,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:05,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363460128] [2024-12-02 09:01:05,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 09:01:05,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918931659] [2024-12-02 09:01:05,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:05,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:05,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:05,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:05,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 09:01:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:06,431 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 110 conjuncts are in the unsatisfiable core [2024-12-02 09:01:06,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:07,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:08,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:08,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:09,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:10,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:10,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:11,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:12,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-12-02 09:01:13,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2024-12-02 09:01:13,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 49 [2024-12-02 09:01:13,765 INFO L349 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2024-12-02 09:01:13,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 68 [2024-12-02 09:01:13,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,817 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2024-12-02 09:01:13,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 74 [2024-12-02 09:01:13,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:14,016 INFO L349 Elim1Store]: treesize reduction 90, result has 17.4 percent of original size [2024-12-02 09:01:14,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 46 treesize of output 79 [2024-12-02 09:01:18,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:18,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 230 treesize of output 174 [2024-12-02 09:01:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,343 INFO L349 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2024-12-02 09:01:18,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 67 [2024-12-02 09:01:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:18,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 09:01:18,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 157 treesize of output 201 [2024-12-02 09:01:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 48 proven. 136 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked. [2024-12-02 09:01:21,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:01:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:01:22,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:22,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363460128] [2024-12-02 09:01:22,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 09:01:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918931659] [2024-12-02 09:01:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918931659] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 22 [2024-12-02 09:01:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573995155] [2024-12-02 09:01:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:22,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 09:01:22,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:22,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 09:01:22,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-12-02 09:01:22,282 INFO L87 Difference]: Start difference. First operand 1137 states and 1281 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:24,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:24,798 INFO L93 Difference]: Finished difference Result 2358 states and 2643 transitions. [2024-12-02 09:01:24,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 09:01:24,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 09:01:24,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:24,801 INFO L225 Difference]: With dead ends: 2358 [2024-12-02 09:01:24,801 INFO L226 Difference]: Without dead ends: 1253 [2024-12-02 09:01:24,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2024-12-02 09:01:24,802 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 144 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:24,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 471 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 09:01:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-12-02 09:01:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1181. [2024-12-02 09:01:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1114 states have (on average 1.0942549371633752) internal successors, (1219), 1119 states have internal predecessors, (1219), 53 states have call successors, (53), 13 states have call predecessors, (53), 13 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-12-02 09:01:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1325 transitions. [2024-12-02 09:01:25,006 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1325 transitions. Word has length 155 [2024-12-02 09:01:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:25,006 INFO L471 AbstractCegarLoop]: Abstraction has 1181 states and 1325 transitions. [2024-12-02 09:01:25,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:25,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1325 transitions. [2024-12-02 09:01:25,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 09:01:25,007 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 09:01:25,007 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:01:25,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 09:01:25,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:25,207 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 09:01:25,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:01:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash 686579077, now seen corresponding path program 1 times [2024-12-02 09:01:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 09:01:25,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162369894] [2024-12-02 09:01:25,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:01:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 09:01:25,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580454045] [2024-12-02 09:01:25,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:01:25,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:01:25,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:01:25,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:01:25,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 09:01:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:01:25,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-12-02 09:01:25,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:01:26,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:27,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:28,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:28,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:29,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:30,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:30,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:31,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:32,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 09:01:32,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2024-12-02 09:01:32,755 INFO L349 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2024-12-02 09:01:32,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 55 [2024-12-02 09:01:32,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,790 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2024-12-02 09:01:32,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 53 [2024-12-02 09:01:32,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:32,875 INFO L349 Elim1Store]: treesize reduction 70, result has 24.7 percent of original size [2024-12-02 09:01:32,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 62 [2024-12-02 09:01:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 09:01:34,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 47 [2024-12-02 09:01:34,240 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-12-02 09:01:34,240 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:01:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-12-02 09:01:34,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 09:01:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162369894] [2024-12-02 09:01:34,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 09:01:34,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580454045] [2024-12-02 09:01:34,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580454045] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 09:01:34,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 09:01:34,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-12-02 09:01:34,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760458166] [2024-12-02 09:01:34,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 09:01:34,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 09:01:34,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 09:01:34,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:01:34,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-12-02 09:01:34,763 INFO L87 Difference]: Start difference. First operand 1181 states and 1325 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:01:36,959 INFO L93 Difference]: Finished difference Result 2340 states and 2616 transitions. [2024-12-02 09:01:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:01:36,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 155 [2024-12-02 09:01:36,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 09:01:36,961 INFO L225 Difference]: With dead ends: 2340 [2024-12-02 09:01:36,961 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 09:01:36,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-12-02 09:01:36,963 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 64 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 09:01:36,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 368 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 09:01:36,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 09:01:36,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 09:01:36,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 09:01:36,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 09:01:36,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-12-02 09:01:36,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 09:01:36,964 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:01:36,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-12-02 09:01:36,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 09:01:36,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 09:01:36,966 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 09:01:36,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 09:01:37,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ac60dc-268f-4fdb-abb5-1260f6cdd636/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-12-02 09:01:37,169 INFO L422 BasicCegarLoop]: Path program 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 09:01:37,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.