./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.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_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB --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 a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:16:06,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:16:06,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:16:06,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:16:06,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:16:06,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:16:06,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:16:06,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:16:06,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:16:06,533 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:16:06,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:16:06,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:16:06,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:16:06,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:16:06,533 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:16:06,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:16:06,534 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:16:06,534 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:16:06,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:16:06,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:16:06,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:16:06,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:06,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:06,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:06,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:16:06,536 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:16:06,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:16:06,537 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_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB 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 -> a9741d9253f3a1c34b363b1f78a0a60d9588ccafe85a5c037fb56edb8bf20d1f [2024-11-27 23:16:06,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:16:06,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:16:06,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:16:06,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:16:06,877 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:16:06,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-11-27 23:16:09,784 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/data/bb01cdb8f/85687d8d37784d94a39ec6275418eea8/FLAGba441103b [2024-11-27 23:16:10,135 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:16:10,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i [2024-11-27 23:16:10,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/data/bb01cdb8f/85687d8d37784d94a39ec6275418eea8/FLAGba441103b [2024-11-27 23:16:10,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/data/bb01cdb8f/85687d8d37784d94a39ec6275418eea8 [2024-11-27 23:16:10,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:16:10,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:16:10,176 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:10,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:16:10,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:16:10,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbc533d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10, skipping insertion in model container [2024-11-27 23:16:10,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:16:10,390 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_61abad14-bedc-452e-abb8-137621ca8004/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i[913,926] [2024-11-27 23:16:10,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:10,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:16:10,516 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_61abad14-bedc-452e-abb8-137621ca8004/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-86.i[913,926] [2024-11-27 23:16:10,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:10,596 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:16:10,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10 WrapperNode [2024-11-27 23:16:10,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:10,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:10,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:16:10,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:16:10,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,673 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 159 [2024-11-27 23:16:10,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:10,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:16:10,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:16:10,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:16:10,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,720 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:16:10,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,727 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:16:10,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:16:10,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:16:10,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:16:10,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (1/1) ... [2024-11-27 23:16:10,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:10,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:10,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:16:10,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:16:10,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:16:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:16:10,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:16:10,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:16:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:16:10,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:16:10,921 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:16:10,923 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:16:11,358 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-27 23:16:11,358 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:16:11,370 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:16:11,370 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:16:11,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:11 BoogieIcfgContainer [2024-11-27 23:16:11,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:16:11,375 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:16:11,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:16:11,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:16:11,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:16:10" (1/3) ... [2024-11-27 23:16:11,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1208c92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:11, skipping insertion in model container [2024-11-27 23:16:11,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:10" (2/3) ... [2024-11-27 23:16:11,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1208c92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:11, skipping insertion in model container [2024-11-27 23:16:11,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:11" (3/3) ... [2024-11-27 23:16:11,384 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-86.i [2024-11-27 23:16:11,400 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:16:11,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_codestructure_normal_file-86.i that has 2 procedures, 76 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:16:11,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:16:11,496 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;@260bc814, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:16:11,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:16:11,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 23:16:11,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-27 23:16:11,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:11,520 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:11,521 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:11,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:11,528 INFO L85 PathProgramCache]: Analyzing trace with hash -560862835, now seen corresponding path program 1 times [2024-11-27 23:16:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:11,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092009534] [2024-11-27 23:16:11,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:11,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:11,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-27 23:16:11,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092009534] [2024-11-27 23:16:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092009534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:16:11,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094342613] [2024-11-27 23:16:11,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:11,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:16:11,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:11,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:16:11,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:16:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:12,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:16:12,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:16:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-27 23:16:12,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:16:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094342613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:12,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:16:12,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:16:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052479592] [2024-11-27 23:16:12,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:12,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:16:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:12,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:16:12,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:16:12,327 INFO L87 Difference]: Start difference. First operand has 76 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 43 states have internal predecessors, (57), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:16:12,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:12,371 INFO L93 Difference]: Finished difference Result 145 states and 263 transitions. [2024-11-27 23:16:12,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:16:12,374 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 186 [2024-11-27 23:16:12,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:12,382 INFO L225 Difference]: With dead ends: 145 [2024-11-27 23:16:12,383 INFO L226 Difference]: Without dead ends: 72 [2024-11-27 23:16:12,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:16:12,391 INFO L435 NwaCegarLoop]: 112 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, 112 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 [2024-11-27 23:16:12,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:16:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-27 23:16:12,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-27 23:16:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 39 states have internal predecessors, (50), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 23:16:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 112 transitions. [2024-11-27 23:16:12,438 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 112 transitions. Word has length 186 [2024-11-27 23:16:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:12,438 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 112 transitions. [2024-11-27 23:16:12,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:16:12,439 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 112 transitions. [2024-11-27 23:16:12,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-27 23:16:12,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:12,442 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:12,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:16:12,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61abad14-bedc-452e-abb8-137621ca8004/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:16:12,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:12,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash -926672629, now seen corresponding path program 1 times [2024-11-27 23:16:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:12,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905027901] [2024-11-27 23:16:12,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:16:31,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:31,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905027901] [2024-11-27 23:16:31,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905027901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:31,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:31,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 23:16:31,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415785697] [2024-11-27 23:16:31,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:31,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:16:31,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:31,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:16:31,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:16:31,009 INFO L87 Difference]: Start difference. First operand 72 states and 112 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:33,636 INFO L93 Difference]: Finished difference Result 191 states and 286 transitions. [2024-11-27 23:16:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:16:33,638 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 186 [2024-11-27 23:16:33,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:33,641 INFO L225 Difference]: With dead ends: 191 [2024-11-27 23:16:33,641 INFO L226 Difference]: Without dead ends: 122 [2024-11-27 23:16:33,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:16:33,643 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 104 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:33,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 525 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:16:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-27 23:16:33,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 82. [2024-11-27 23:16:33,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 49 states have internal predecessors, (64), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-27 23:16:33,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 126 transitions. [2024-11-27 23:16:33,658 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 126 transitions. Word has length 186 [2024-11-27 23:16:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:33,660 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 126 transitions. [2024-11-27 23:16:33,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 10 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 126 transitions. [2024-11-27 23:16:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-27 23:16:33,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:33,664 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:33,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:16:33,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:33,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:33,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1319699639, now seen corresponding path program 1 times [2024-11-27 23:16:33,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:33,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475557788] [2024-11-27 23:16:33,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:33,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:33,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:16:33,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:33,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475557788] [2024-11-27 23:16:33,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475557788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:33,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:33,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:16:33,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732369016] [2024-11-27 23:16:33,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:33,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:16:33,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:33,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:16:33,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:16:33,880 INFO L87 Difference]: Start difference. First operand 82 states and 126 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:33,920 INFO L93 Difference]: Finished difference Result 190 states and 289 transitions. [2024-11-27 23:16:33,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:16:33,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 186 [2024-11-27 23:16:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:33,926 INFO L225 Difference]: With dead ends: 190 [2024-11-27 23:16:33,926 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 23:16:33,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:16:33,930 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 45 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:33,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 256 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:16:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 23:16:33,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2024-11-27 23:16:33,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 67 states have internal predecessors, (85), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:16:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 163 transitions. [2024-11-27 23:16:33,957 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 163 transitions. Word has length 186 [2024-11-27 23:16:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:33,958 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 163 transitions. [2024-11-27 23:16:33,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:33,958 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 163 transitions. [2024-11-27 23:16:33,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:16:33,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:33,965 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:33,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:16:33,965 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:33,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:33,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1298466405, now seen corresponding path program 1 times [2024-11-27 23:16:33,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:33,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729028302] [2024-11-27 23:16:33,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:33,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:42,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:16:42,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:42,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729028302] [2024-11-27 23:16:42,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729028302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:42,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:42,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:16:42,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392150263] [2024-11-27 23:16:42,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:42,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:16:42,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:42,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:16:42,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:16:42,051 INFO L87 Difference]: Start difference. First operand 108 states and 163 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:45,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:16:45,042 INFO L93 Difference]: Finished difference Result 146 states and 204 transitions. [2024-11-27 23:16:45,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:16:45,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:16:45,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:16:45,046 INFO L225 Difference]: With dead ends: 146 [2024-11-27 23:16:45,046 INFO L226 Difference]: Without dead ends: 144 [2024-11-27 23:16:45,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:16:45,048 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 176 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:16:45,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 556 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:16:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-27 23:16:45,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 109. [2024-11-27 23:16:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 68 states have internal predecessors, (87), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:16:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 165 transitions. [2024-11-27 23:16:45,077 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 165 transitions. Word has length 187 [2024-11-27 23:16:45,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:16:45,078 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 165 transitions. [2024-11-27 23:16:45,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:16:45,080 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 165 transitions. [2024-11-27 23:16:45,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:16:45,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:16:45,082 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:45,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:16:45,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:16:45,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:45,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1241208103, now seen corresponding path program 1 times [2024-11-27 23:16:45,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:45,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468726494] [2024-11-27 23:16:45,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:45,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:16:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468726494] [2024-11-27 23:16:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468726494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:55,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:55,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:16:55,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667102522] [2024-11-27 23:16:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:55,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:16:55,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:55,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:16:55,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:16:55,941 INFO L87 Difference]: Start difference. First operand 109 states and 165 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:00,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:00,233 INFO L93 Difference]: Finished difference Result 143 states and 201 transitions. [2024-11-27 23:17:00,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:17:00,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:17:00,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:00,236 INFO L225 Difference]: With dead ends: 143 [2024-11-27 23:17:00,236 INFO L226 Difference]: Without dead ends: 141 [2024-11-27 23:17:00,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:17:00,237 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 159 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:00,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 477 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 23:17:00,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-27 23:17:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 109. [2024-11-27 23:17:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 68 states have internal predecessors, (87), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:17:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 165 transitions. [2024-11-27 23:17:00,253 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 165 transitions. Word has length 187 [2024-11-27 23:17:00,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:00,254 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 165 transitions. [2024-11-27 23:17:00,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:00,254 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 165 transitions. [2024-11-27 23:17:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:17:00,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:00,257 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:00,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:17:00,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:00,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:00,258 INFO L85 PathProgramCache]: Analyzing trace with hash -761053642, now seen corresponding path program 1 times [2024-11-27 23:17:00,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:00,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020981808] [2024-11-27 23:17:00,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:00,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:14,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:17:14,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020981808] [2024-11-27 23:17:14,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020981808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:14,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:14,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:17:14,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771860169] [2024-11-27 23:17:14,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:14,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:17:14,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:14,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:17:14,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:14,918 INFO L87 Difference]: Start difference. First operand 109 states and 165 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:20,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:20,377 INFO L93 Difference]: Finished difference Result 148 states and 208 transitions. [2024-11-27 23:17:20,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:17:20,378 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:17:20,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:20,379 INFO L225 Difference]: With dead ends: 148 [2024-11-27 23:17:20,379 INFO L226 Difference]: Without dead ends: 146 [2024-11-27 23:17:20,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:17:20,380 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 112 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:20,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 558 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:17:20,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-27 23:17:20,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 111. [2024-11-27 23:17:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.318840579710145) internal successors, (91), 70 states have internal predecessors, (91), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:17:20,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 169 transitions. [2024-11-27 23:17:20,410 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 169 transitions. Word has length 187 [2024-11-27 23:17:20,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:20,410 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 169 transitions. [2024-11-27 23:17:20,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:20,411 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 169 transitions. [2024-11-27 23:17:20,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:17:20,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:20,415 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:20,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:17:20,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:20,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:20,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1013953720, now seen corresponding path program 1 times [2024-11-27 23:17:20,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:20,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561696076] [2024-11-27 23:17:20,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:20,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:17:31,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561696076] [2024-11-27 23:17:31,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561696076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:31,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:31,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:17:31,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26590149] [2024-11-27 23:17:31,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:31,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:17:31,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:31,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:17:31,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:31,002 INFO L87 Difference]: Start difference. First operand 111 states and 169 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:35,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:35,093 INFO L93 Difference]: Finished difference Result 149 states and 208 transitions. [2024-11-27 23:17:35,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 23:17:35,094 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:17:35,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:35,095 INFO L225 Difference]: With dead ends: 149 [2024-11-27 23:17:35,096 INFO L226 Difference]: Without dead ends: 147 [2024-11-27 23:17:35,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:17:35,097 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 125 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:35,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 518 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:17:35,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-27 23:17:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 111. [2024-11-27 23:17:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 69 states have (on average 1.318840579710145) internal successors, (91), 70 states have internal predecessors, (91), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:17:35,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 169 transitions. [2024-11-27 23:17:35,120 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 169 transitions. Word has length 187 [2024-11-27 23:17:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:35,121 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 169 transitions. [2024-11-27 23:17:35,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 169 transitions. [2024-11-27 23:17:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:17:35,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:35,124 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:35,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:17:35,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:35,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:35,125 INFO L85 PathProgramCache]: Analyzing trace with hash 665966823, now seen corresponding path program 1 times [2024-11-27 23:17:35,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:35,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576928003] [2024-11-27 23:17:35,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:35,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:17:43,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:43,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576928003] [2024-11-27 23:17:43,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576928003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:43,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:43,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:17:43,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824699519] [2024-11-27 23:17:43,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:43,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:17:43,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:43,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:17:43,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:43,601 INFO L87 Difference]: Start difference. First operand 111 states and 169 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:46,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:46,391 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2024-11-27 23:17:46,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:17:46,392 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:17:46,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:46,394 INFO L225 Difference]: With dead ends: 159 [2024-11-27 23:17:46,394 INFO L226 Difference]: Without dead ends: 157 [2024-11-27 23:17:46,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:17:46,394 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 135 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:46,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 567 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:17:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-27 23:17:46,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 113. [2024-11-27 23:17:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 71 states have (on average 1.323943661971831) internal successors, (94), 72 states have internal predecessors, (94), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:17:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 172 transitions. [2024-11-27 23:17:46,408 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 172 transitions. Word has length 187 [2024-11-27 23:17:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:46,409 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 172 transitions. [2024-11-27 23:17:46,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2024-11-27 23:17:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:17:46,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:46,411 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:17:46,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:46,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:46,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1346025193, now seen corresponding path program 1 times [2024-11-27 23:17:46,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:46,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447717214] [2024-11-27 23:17:46,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:46,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:17:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:17:53,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:17:53,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447717214] [2024-11-27 23:17:53,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447717214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:17:53,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:17:53,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:17:53,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441315868] [2024-11-27 23:17:53,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:17:53,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:17:53,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:17:53,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:17:53,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:17:53,547 INFO L87 Difference]: Start difference. First operand 113 states and 172 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:17:57,540 INFO L93 Difference]: Finished difference Result 263 states and 388 transitions. [2024-11-27 23:17:57,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:17:57,541 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:17:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:17:57,543 INFO L225 Difference]: With dead ends: 263 [2024-11-27 23:17:57,543 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 23:17:57,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:17:57,545 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 118 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:17:57,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 586 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:17:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 23:17:57,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 118. [2024-11-27 23:17:57,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 76 states have (on average 1.3421052631578947) internal successors, (102), 77 states have internal predecessors, (102), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:17:57,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 180 transitions. [2024-11-27 23:17:57,565 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 180 transitions. Word has length 187 [2024-11-27 23:17:57,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:17:57,566 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 180 transitions. [2024-11-27 23:17:57,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:17:57,567 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 180 transitions. [2024-11-27 23:17:57,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-27 23:17:57,568 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:17:57,569 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:57,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:17:57,569 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:17:57,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:17:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash -618850858, now seen corresponding path program 1 times [2024-11-27 23:17:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:17:57,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039893959] [2024-11-27 23:17:57,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:17:57,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:18:29,310 WARN L286 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 173 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:18:57,324 WARN L286 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 175 DAG size of output: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:18:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:18:57,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:18:57,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039893959] [2024-11-27 23:18:57,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039893959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:18:57,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:18:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 23:18:57,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193884360] [2024-11-27 23:18:57,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:18:57,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:18:57,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:18:57,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:18:57,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:18:57,898 INFO L87 Difference]: Start difference. First operand 118 states and 180 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:09,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:09,646 INFO L93 Difference]: Finished difference Result 157 states and 225 transitions. [2024-11-27 23:19:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:19:09,647 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 187 [2024-11-27 23:19:09,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:09,649 INFO L225 Difference]: With dead ends: 157 [2024-11-27 23:19:09,649 INFO L226 Difference]: Without dead ends: 155 [2024-11-27 23:19:09,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:19:09,650 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 125 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:09,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 571 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 23:19:09,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-27 23:19:09,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 126. [2024-11-27 23:19:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 85 states have internal predecessors, (113), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:19:09,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 191 transitions. [2024-11-27 23:19:09,665 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 191 transitions. Word has length 187 [2024-11-27 23:19:09,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:09,666 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 191 transitions. [2024-11-27 23:19:09,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 191 transitions. [2024-11-27 23:19:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:19:09,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:09,668 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:09,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:19:09,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:09,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:09,668 INFO L85 PathProgramCache]: Analyzing trace with hash -459245104, now seen corresponding path program 1 times [2024-11-27 23:19:09,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:09,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368187891] [2024-11-27 23:19:09,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:09,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:19:19,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:19,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368187891] [2024-11-27 23:19:19,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368187891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:19,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:19,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:19:19,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139107055] [2024-11-27 23:19:19,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:19,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:19:19,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:19,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:19:19,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:19:19,115 INFO L87 Difference]: Start difference. First operand 126 states and 191 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:22,893 INFO L93 Difference]: Finished difference Result 244 states and 340 transitions. [2024-11-27 23:19:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:19:22,895 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:19:22,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:22,896 INFO L225 Difference]: With dead ends: 244 [2024-11-27 23:19:22,896 INFO L226 Difference]: Without dead ends: 242 [2024-11-27 23:19:22,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:19:22,897 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 154 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:22,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 640 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:19:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-27 23:19:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 133. [2024-11-27 23:19:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 92 states have internal predecessors, (126), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:19:22,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 204 transitions. [2024-11-27 23:19:22,917 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 204 transitions. Word has length 188 [2024-11-27 23:19:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:22,918 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 204 transitions. [2024-11-27 23:19:22,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 204 transitions. [2024-11-27 23:19:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:19:22,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:22,921 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:22,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:19:22,921 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:22,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash -401986802, now seen corresponding path program 1 times [2024-11-27 23:19:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:22,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522082578] [2024-11-27 23:19:22,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:22,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:33,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:19:33,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:33,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522082578] [2024-11-27 23:19:33,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522082578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:33,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:33,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:19:33,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57057607] [2024-11-27 23:19:33,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:33,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:19:33,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:33,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:19:33,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:19:33,543 INFO L87 Difference]: Start difference. First operand 133 states and 204 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:36,706 INFO L93 Difference]: Finished difference Result 183 states and 257 transitions. [2024-11-27 23:19:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:19:36,708 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:19:36,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:36,709 INFO L225 Difference]: With dead ends: 183 [2024-11-27 23:19:36,709 INFO L226 Difference]: Without dead ends: 181 [2024-11-27 23:19:36,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:19:36,710 INFO L435 NwaCegarLoop]: 106 mSDtfsCounter, 127 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:36,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 659 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:19:36,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-27 23:19:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 133. [2024-11-27 23:19:36,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 92 states have internal predecessors, (126), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:19:36,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 204 transitions. [2024-11-27 23:19:36,725 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 204 transitions. Word has length 188 [2024-11-27 23:19:36,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:36,725 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 204 transitions. [2024-11-27 23:19:36,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:36,725 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 204 transitions. [2024-11-27 23:19:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:19:36,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:36,727 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:36,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:19:36,727 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:36,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:36,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1268591730, now seen corresponding path program 1 times [2024-11-27 23:19:36,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:36,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914071277] [2024-11-27 23:19:36,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:36,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:19:47,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:47,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914071277] [2024-11-27 23:19:47,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914071277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:47,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:47,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:19:47,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576173] [2024-11-27 23:19:47,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:47,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:19:47,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:47,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:19:47,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:19:47,043 INFO L87 Difference]: Start difference. First operand 133 states and 204 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:52,543 INFO L93 Difference]: Finished difference Result 195 states and 270 transitions. [2024-11-27 23:19:52,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:19:52,545 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:19:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:52,547 INFO L225 Difference]: With dead ends: 195 [2024-11-27 23:19:52,547 INFO L226 Difference]: Without dead ends: 193 [2024-11-27 23:19:52,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=225, Invalid=425, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:19:52,548 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 152 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:52,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 564 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:19:52,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-27 23:19:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 128. [2024-11-27 23:19:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 87 states have internal predecessors, (117), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:19:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 195 transitions. [2024-11-27 23:19:52,563 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 195 transitions. Word has length 188 [2024-11-27 23:19:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:52,564 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 195 transitions. [2024-11-27 23:19:52,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:19:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 195 transitions. [2024-11-27 23:19:52,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:19:52,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:52,566 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:52,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:19:52,566 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:52,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:52,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1211333428, now seen corresponding path program 1 times [2024-11-27 23:19:52,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716370855] [2024-11-27 23:19:52,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:52,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:20:04,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:04,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716370855] [2024-11-27 23:20:04,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716370855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:04,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:04,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:20:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584875015] [2024-11-27 23:20:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:04,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:20:04,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:04,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:20:04,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:20:04,483 INFO L87 Difference]: Start difference. First operand 128 states and 195 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:12,907 INFO L93 Difference]: Finished difference Result 231 states and 328 transitions. [2024-11-27 23:20:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:20:12,908 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:20:12,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:12,910 INFO L225 Difference]: With dead ends: 231 [2024-11-27 23:20:12,910 INFO L226 Difference]: Without dead ends: 229 [2024-11-27 23:20:12,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:20:12,911 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 109 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:12,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 592 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:20:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-27 23:20:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 133. [2024-11-27 23:20:12,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 92 states have internal predecessors, (126), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:20:12,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 204 transitions. [2024-11-27 23:20:12,927 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 204 transitions. Word has length 188 [2024-11-27 23:20:12,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:12,928 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 204 transitions. [2024-11-27 23:20:12,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:12,928 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 204 transitions. [2024-11-27 23:20:12,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:20:12,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:12,930 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:12,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:20:12,930 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:12,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:12,930 INFO L85 PathProgramCache]: Analyzing trace with hash 828716351, now seen corresponding path program 1 times [2024-11-27 23:20:12,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:12,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083052066] [2024-11-27 23:20:12,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:12,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:20:22,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:22,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083052066] [2024-11-27 23:20:22,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083052066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:22,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:22,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:20:22,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798114594] [2024-11-27 23:20:22,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:22,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:20:22,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:22,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:20:22,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:20:22,457 INFO L87 Difference]: Start difference. First operand 133 states and 204 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:30,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:30,656 INFO L93 Difference]: Finished difference Result 193 states and 267 transitions. [2024-11-27 23:20:30,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:20:30,657 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:20:30,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:30,659 INFO L225 Difference]: With dead ends: 193 [2024-11-27 23:20:30,659 INFO L226 Difference]: Without dead ends: 191 [2024-11-27 23:20:30,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=267, Invalid=545, Unknown=0, NotChecked=0, Total=812 [2024-11-27 23:20:30,660 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 164 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:30,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 611 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:20:30,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-27 23:20:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 132. [2024-11-27 23:20:30,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 91 states have internal predecessors, (124), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:20:30,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 202 transitions. [2024-11-27 23:20:30,676 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 202 transitions. Word has length 188 [2024-11-27 23:20:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:30,676 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 202 transitions. [2024-11-27 23:20:30,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 202 transitions. [2024-11-27 23:20:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:20:30,678 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:30,678 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:30,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:20:30,678 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:30,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:30,679 INFO L85 PathProgramCache]: Analyzing trace with hash 885974653, now seen corresponding path program 1 times [2024-11-27 23:20:30,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:30,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180951114] [2024-11-27 23:20:30,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:30,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:38,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:20:38,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:38,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180951114] [2024-11-27 23:20:38,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180951114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:38,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:38,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:20:38,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425820540] [2024-11-27 23:20:38,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:38,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:20:38,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:38,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:20:38,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:20:38,365 INFO L87 Difference]: Start difference. First operand 132 states and 202 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:42,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:42,265 INFO L93 Difference]: Finished difference Result 252 states and 347 transitions. [2024-11-27 23:20:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 23:20:42,266 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:20:42,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:42,268 INFO L225 Difference]: With dead ends: 252 [2024-11-27 23:20:42,268 INFO L226 Difference]: Without dead ends: 250 [2024-11-27 23:20:42,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:20:42,269 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 138 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:42,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 816 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 23:20:42,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-27 23:20:42,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 135. [2024-11-27 23:20:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 94 states have internal predecessors, (129), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:20:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 207 transitions. [2024-11-27 23:20:42,284 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 207 transitions. Word has length 188 [2024-11-27 23:20:42,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:42,284 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 207 transitions. [2024-11-27 23:20:42,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:42,285 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 207 transitions. [2024-11-27 23:20:42,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:20:42,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:42,286 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:42,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:20:42,286 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:42,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:42,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1366129114, now seen corresponding path program 1 times [2024-11-27 23:20:42,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:42,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367762373] [2024-11-27 23:20:42,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:42,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:20:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367762373] [2024-11-27 23:20:53,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367762373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:53,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:53,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:20:53,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849308711] [2024-11-27 23:20:53,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:53,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:20:53,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:53,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:20:53,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:20:53,203 INFO L87 Difference]: Start difference. First operand 135 states and 207 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:58,908 INFO L93 Difference]: Finished difference Result 230 states and 325 transitions. [2024-11-27 23:20:58,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:20:58,910 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:20:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:58,912 INFO L225 Difference]: With dead ends: 230 [2024-11-27 23:20:58,912 INFO L226 Difference]: Without dead ends: 228 [2024-11-27 23:20:58,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:20:58,913 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 141 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:58,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 612 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:20:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-27 23:20:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 137. [2024-11-27 23:20:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 95 states have (on average 1.4) internal successors, (133), 96 states have internal predecessors, (133), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:20:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2024-11-27 23:20:58,931 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 188 [2024-11-27 23:20:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:58,931 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2024-11-27 23:20:58,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:20:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2024-11-27 23:20:58,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:20:58,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:58,933 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:58,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:20:58,933 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:58,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:58,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1153830820, now seen corresponding path program 1 times [2024-11-27 23:20:58,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:58,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52985008] [2024-11-27 23:20:58,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:21:09,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:09,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52985008] [2024-11-27 23:21:09,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52985008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:09,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:09,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:21:09,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2233982] [2024-11-27 23:21:09,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:09,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:21:09,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:09,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:21:09,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:21:09,304 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:23,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:23,546 INFO L93 Difference]: Finished difference Result 200 states and 277 transitions. [2024-11-27 23:21:23,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:21:23,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:21:23,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:23,549 INFO L225 Difference]: With dead ends: 200 [2024-11-27 23:21:23,549 INFO L226 Difference]: Without dead ends: 198 [2024-11-27 23:21:23,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:21:23,550 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 138 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:23,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 572 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 23:21:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-27 23:21:23,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 135. [2024-11-27 23:21:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 94 states have internal predecessors, (129), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:21:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 207 transitions. [2024-11-27 23:21:23,567 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 207 transitions. Word has length 188 [2024-11-27 23:21:23,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:23,568 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 207 transitions. [2024-11-27 23:21:23,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:23,568 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 207 transitions. [2024-11-27 23:21:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:21:23,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:23,570 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:23,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:21:23,570 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash 973102104, now seen corresponding path program 1 times [2024-11-27 23:21:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130739616] [2024-11-27 23:21:23,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:23,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:21:33,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:33,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130739616] [2024-11-27 23:21:33,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130739616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:33,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:33,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:21:33,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316101589] [2024-11-27 23:21:33,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:33,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:21:33,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:33,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:21:33,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:21:33,020 INFO L87 Difference]: Start difference. First operand 135 states and 207 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:36,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:36,755 INFO L93 Difference]: Finished difference Result 192 states and 268 transitions. [2024-11-27 23:21:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:21:36,756 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:21:36,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:36,758 INFO L225 Difference]: With dead ends: 192 [2024-11-27 23:21:36,758 INFO L226 Difference]: Without dead ends: 190 [2024-11-27 23:21:36,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=150, Invalid=270, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:21:36,759 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 134 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:36,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 633 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 23:21:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-27 23:21:36,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 136. [2024-11-27 23:21:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:21:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 209 transitions. [2024-11-27 23:21:36,777 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 209 transitions. Word has length 188 [2024-11-27 23:21:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:36,777 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 209 transitions. [2024-11-27 23:21:36,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 209 transitions. [2024-11-27 23:21:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:21:36,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:36,779 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:36,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:21:36,779 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:36,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1546857830, now seen corresponding path program 1 times [2024-11-27 23:21:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854049744] [2024-11-27 23:21:36,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:45,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:21:45,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:45,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854049744] [2024-11-27 23:21:45,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854049744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:45,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:45,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:21:45,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691272160] [2024-11-27 23:21:45,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:45,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:21:45,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:45,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:21:45,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:21:45,475 INFO L87 Difference]: Start difference. First operand 136 states and 209 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:52,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:52,698 INFO L93 Difference]: Finished difference Result 193 states and 269 transitions. [2024-11-27 23:21:52,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:21:52,699 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:21:52,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:52,700 INFO L225 Difference]: With dead ends: 193 [2024-11-27 23:21:52,700 INFO L226 Difference]: Without dead ends: 191 [2024-11-27 23:21:52,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=232, Invalid=418, Unknown=0, NotChecked=0, Total=650 [2024-11-27 23:21:52,701 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 122 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:52,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 667 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 23:21:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-27 23:21:52,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 135. [2024-11-27 23:21:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 94 states have internal predecessors, (129), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:21:52,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 207 transitions. [2024-11-27 23:21:52,721 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 207 transitions. Word has length 188 [2024-11-27 23:21:52,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:52,722 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 207 transitions. [2024-11-27 23:21:52,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:21:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 207 transitions. [2024-11-27 23:21:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:21:52,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:21:52,723 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:21:52,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:21:52,724 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:21:52,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:21:52,725 INFO L85 PathProgramCache]: Analyzing trace with hash -345926096, now seen corresponding path program 1 times [2024-11-27 23:21:52,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:21:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49797008] [2024-11-27 23:21:52,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:21:52,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:21:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:22:39,303 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 169 DAG size of output: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:22:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:22:39,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:22:39,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49797008] [2024-11-27 23:22:39,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49797008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:22:39,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:22:39,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:22:39,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240705352] [2024-11-27 23:22:39,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:22:39,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:22:39,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:22:39,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:22:39,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:22:39,642 INFO L87 Difference]: Start difference. First operand 135 states and 207 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:22:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:22:51,379 INFO L93 Difference]: Finished difference Result 173 states and 248 transitions. [2024-11-27 23:22:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:22:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:22:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:22:51,381 INFO L225 Difference]: With dead ends: 173 [2024-11-27 23:22:51,381 INFO L226 Difference]: Without dead ends: 171 [2024-11-27 23:22:51,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:22:51,382 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 102 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:22:51,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 597 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 23:22:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-27 23:22:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2024-11-27 23:22:51,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:22:51,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 209 transitions. [2024-11-27 23:22:51,399 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 209 transitions. Word has length 188 [2024-11-27 23:22:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:22:51,399 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 209 transitions. [2024-11-27 23:22:51,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:22:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 209 transitions. [2024-11-27 23:22:51,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:22:51,401 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:22:51,401 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:22:51,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:22:51,401 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:22:51,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:22:51,403 INFO L85 PathProgramCache]: Analyzing trace with hash -288667794, now seen corresponding path program 1 times [2024-11-27 23:22:51,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:22:51,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839265581] [2024-11-27 23:22:51,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:22:51,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:22:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:23:39,831 WARN L286 SmtUtils]: Spent 13.38s on a formula simplification. DAG size of input: 173 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:24:14,619 WARN L286 SmtUtils]: Spent 16.00s on a formula simplification. DAG size of input: 175 DAG size of output: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:24:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:24:15,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:24:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839265581] [2024-11-27 23:24:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839265581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:24:15,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:24:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:24:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693985916] [2024-11-27 23:24:15,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:24:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:24:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:24:15,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:24:15,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:24:15,190 INFO L87 Difference]: Start difference. First operand 136 states and 209 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:24:34,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:24:34,361 INFO L93 Difference]: Finished difference Result 168 states and 243 transitions. [2024-11-27 23:24:34,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:24:34,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:24:34,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:24:34,364 INFO L225 Difference]: With dead ends: 168 [2024-11-27 23:24:34,364 INFO L226 Difference]: Without dead ends: 166 [2024-11-27 23:24:34,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 51.0s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:24:34,366 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 122 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-27 23:24:34,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 515 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-27 23:24:34,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-27 23:24:34,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 136. [2024-11-27 23:24:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:24:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 209 transitions. [2024-11-27 23:24:34,381 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 209 transitions. Word has length 188 [2024-11-27 23:24:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:24:34,381 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 209 transitions. [2024-11-27 23:24:34,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:24:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 209 transitions. [2024-11-27 23:24:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:24:34,382 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:24:34,382 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:24:34,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:24:34,383 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:24:34,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:24:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash 191486667, now seen corresponding path program 1 times [2024-11-27 23:24:34,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:24:34,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24574801] [2024-11-27 23:24:34,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:24:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:24:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:25:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:25:11,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:25:11,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24574801] [2024-11-27 23:25:11,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24574801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:25:11,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:25:11,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:25:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434069911] [2024-11-27 23:25:11,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:25:11,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:25:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:25:11,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:25:11,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:25:11,756 INFO L87 Difference]: Start difference. First operand 136 states and 209 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:25:24,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:25:24,444 INFO L93 Difference]: Finished difference Result 175 states and 252 transitions. [2024-11-27 23:25:24,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:25:24,445 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:25:24,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:25:24,446 INFO L225 Difference]: With dead ends: 175 [2024-11-27 23:25:24,446 INFO L226 Difference]: Without dead ends: 173 [2024-11-27 23:25:24,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=104, Invalid=168, Unknown=0, NotChecked=0, Total=272 [2024-11-27 23:25:24,447 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 118 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:25:24,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 606 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 23:25:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-27 23:25:24,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 138. [2024-11-27 23:25:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 96 states have (on average 1.40625) internal successors, (135), 97 states have internal predecessors, (135), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:25:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions. [2024-11-27 23:25:24,464 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 188 [2024-11-27 23:25:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:25:24,464 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 213 transitions. [2024-11-27 23:25:24,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:25:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2024-11-27 23:25:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:25:24,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:25:24,466 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:25:24,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:25:24,466 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:25:24,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:25:24,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1966494029, now seen corresponding path program 1 times [2024-11-27 23:25:24,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:25:24,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820473833] [2024-11-27 23:25:24,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:25:24,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:25:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:26:00,468 WARN L286 SmtUtils]: Spent 13.21s on a formula simplification. DAG size of input: 173 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:26:31,501 WARN L286 SmtUtils]: Spent 13.71s on a formula simplification. DAG size of input: 175 DAG size of output: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:26:31,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:26:31,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:26:31,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820473833] [2024-11-27 23:26:31,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820473833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:26:31,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:26:31,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:26:31,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335114409] [2024-11-27 23:26:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:26:31,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:26:31,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:26:31,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:26:31,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:26:31,904 INFO L87 Difference]: Start difference. First operand 138 states and 213 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:26:36,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:26:46,852 WARN L286 SmtUtils]: Spent 10.36s on a formula simplification. DAG size of input: 182 DAG size of output: 162 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:26:57,628 WARN L286 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:27:11,048 WARN L286 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 184 DAG size of output: 164 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:27:22,112 WARN L286 SmtUtils]: Spent 10.49s on a formula simplification that was a NOOP. DAG size: 176 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:27:33,310 WARN L286 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 187 DAG size of output: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:27:46,997 WARN L286 SmtUtils]: Spent 12.35s on a formula simplification. DAG size of input: 187 DAG size of output: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:27:47,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:47,567 INFO L93 Difference]: Finished difference Result 176 states and 252 transitions. [2024-11-27 23:27:47,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:27:47,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:27:47,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:47,571 INFO L225 Difference]: With dead ends: 176 [2024-11-27 23:27:47,571 INFO L226 Difference]: Without dead ends: 174 [2024-11-27 23:27:47,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 98.9s TimeCoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2024-11-27 23:27:47,572 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 129 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:47,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 523 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-27 23:27:47,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-27 23:27:47,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 138. [2024-11-27 23:27:47,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 96 states have (on average 1.40625) internal successors, (135), 97 states have internal predecessors, (135), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 23:27:47,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 213 transitions. [2024-11-27 23:27:47,590 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 213 transitions. Word has length 188 [2024-11-27 23:27:47,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:47,590 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 213 transitions. [2024-11-27 23:27:47,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:27:47,590 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 213 transitions. [2024-11-27 23:27:47,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:27:47,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:47,591 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:47,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 23:27:47,592 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:47,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1065432758, now seen corresponding path program 1 times [2024-11-27 23:27:47,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398739308] [2024-11-27 23:27:47,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:27:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:27:47,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:27:47,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398739308] [2024-11-27 23:27:47,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398739308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:27:47,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:27:47,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:27:47,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815045393] [2024-11-27 23:27:47,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:27:47,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:27:47,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:27:47,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:27:47,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:27:47,692 INFO L87 Difference]: Start difference. First operand 138 states and 213 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:27:47,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:27:47,731 INFO L93 Difference]: Finished difference Result 371 states and 574 transitions. [2024-11-27 23:27:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:27:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:27:47,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:27:47,733 INFO L225 Difference]: With dead ends: 371 [2024-11-27 23:27:47,733 INFO L226 Difference]: Without dead ends: 236 [2024-11-27 23:27:47,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:27:47,734 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 55 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:27:47,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 231 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:27:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-27 23:27:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 234. [2024-11-27 23:27:47,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 151 states have (on average 1.3642384105960266) internal successors, (206), 153 states have internal predecessors, (206), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:27:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 362 transitions. [2024-11-27 23:27:47,770 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 362 transitions. Word has length 188 [2024-11-27 23:27:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:27:47,770 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 362 transitions. [2024-11-27 23:27:47,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:27:47,771 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 362 transitions. [2024-11-27 23:27:47,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:27:47,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:27:47,772 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:27:47,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 23:27:47,773 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:27:47,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:27:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash 672405748, now seen corresponding path program 1 times [2024-11-27 23:27:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:27:47,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888713344] [2024-11-27 23:27:47,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:27:47,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:27:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:28:25,399 WARN L286 SmtUtils]: Spent 14.20s on a formula simplification. DAG size of input: 173 DAG size of output: 171 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:28:54,791 WARN L286 SmtUtils]: Spent 13.48s on a formula simplification. DAG size of input: 175 DAG size of output: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:28:55,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:28:55,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:28:55,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888713344] [2024-11-27 23:28:55,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888713344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:28:55,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:28:55,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:28:55,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882610225] [2024-11-27 23:28:55,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:28:55,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:28:55,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:28:55,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:28:55,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:28:55,315 INFO L87 Difference]: Start difference. First operand 234 states and 362 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:29:32,897 WARN L286 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 183 DAG size of output: 144 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 23:29:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:39,460 INFO L93 Difference]: Finished difference Result 318 states and 454 transitions. [2024-11-27 23:29:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 23:29:39,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:29:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:39,463 INFO L225 Difference]: With dead ends: 318 [2024-11-27 23:29:39,463 INFO L226 Difference]: Without dead ends: 316 [2024-11-27 23:29:39,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 67.3s TimeCoverageRelationStatistics Valid=175, Invalid=331, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:29:39,464 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 129 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:39,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 623 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-27 23:29:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-27 23:29:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 234. [2024-11-27 23:29:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 151 states have (on average 1.3642384105960266) internal successors, (206), 153 states have internal predecessors, (206), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:29:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 362 transitions. [2024-11-27 23:29:39,501 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 362 transitions. Word has length 188 [2024-11-27 23:29:39,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:39,502 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 362 transitions. [2024-11-27 23:29:39,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:29:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 362 transitions. [2024-11-27 23:29:39,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:29:39,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:39,503 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:39,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:29:39,504 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:39,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1798139442, now seen corresponding path program 1 times [2024-11-27 23:29:39,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:39,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257812154] [2024-11-27 23:29:39,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:29:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:29:49,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:29:49,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257812154] [2024-11-27 23:29:49,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257812154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:29:49,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:29:49,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:29:49,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342259696] [2024-11-27 23:29:49,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:29:49,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:29:49,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:29:49,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:29:49,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:29:49,524 INFO L87 Difference]: Start difference. First operand 234 states and 362 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:29:56,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:29:56,875 INFO L93 Difference]: Finished difference Result 357 states and 524 transitions. [2024-11-27 23:29:56,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 23:29:56,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:29:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:29:56,878 INFO L225 Difference]: With dead ends: 357 [2024-11-27 23:29:56,879 INFO L226 Difference]: Without dead ends: 355 [2024-11-27 23:29:56,879 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2024-11-27 23:29:56,880 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 112 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:29:56,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 706 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:29:56,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-27 23:29:56,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 231. [2024-11-27 23:29:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 148 states have (on average 1.3581081081081081) internal successors, (201), 150 states have internal predecessors, (201), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:29:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 357 transitions. [2024-11-27 23:29:56,924 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 357 transitions. Word has length 188 [2024-11-27 23:29:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:29:56,925 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 357 transitions. [2024-11-27 23:29:56,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:29:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 357 transitions. [2024-11-27 23:29:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-27 23:29:56,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:29:56,926 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:29:56,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:29:56,927 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:29:56,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:29:56,927 INFO L85 PathProgramCache]: Analyzing trace with hash 299168639, now seen corresponding path program 1 times [2024-11-27 23:29:56,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:29:56,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123075361] [2024-11-27 23:29:56,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:29:56,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:29:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:04,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:30:04,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:04,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123075361] [2024-11-27 23:30:04,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123075361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:04,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:04,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 23:30:04,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069529140] [2024-11-27 23:30:04,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:04,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:30:04,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:04,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:30:04,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:30:04,787 INFO L87 Difference]: Start difference. First operand 231 states and 357 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:09,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:09,248 INFO L93 Difference]: Finished difference Result 355 states and 518 transitions. [2024-11-27 23:30:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:30:09,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 188 [2024-11-27 23:30:09,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:09,250 INFO L225 Difference]: With dead ends: 355 [2024-11-27 23:30:09,250 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 23:30:09,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:30:09,251 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 144 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:09,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 802 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:30:09,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 23:30:09,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 223. [2024-11-27 23:30:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 140 states have (on average 1.3285714285714285) internal successors, (186), 142 states have internal predecessors, (186), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:30:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 342 transitions. [2024-11-27 23:30:09,290 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 342 transitions. Word has length 188 [2024-11-27 23:30:09,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:09,290 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 342 transitions. [2024-11-27 23:30:09,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:09,291 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 342 transitions. [2024-11-27 23:30:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 23:30:09,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:09,292 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:09,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 23:30:09,292 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:09,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1058910892, now seen corresponding path program 1 times [2024-11-27 23:30:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:09,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387909168] [2024-11-27 23:30:09,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:09,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:30:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387909168] [2024-11-27 23:30:19,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387909168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:19,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:19,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:30:19,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633811415] [2024-11-27 23:30:19,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:19,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:30:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:19,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:30:19,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:19,936 INFO L87 Difference]: Start difference. First operand 223 states and 342 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:25,674 INFO L93 Difference]: Finished difference Result 281 states and 403 transitions. [2024-11-27 23:30:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:30:25,675 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 189 [2024-11-27 23:30:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:25,676 INFO L225 Difference]: With dead ends: 281 [2024-11-27 23:30:25,677 INFO L226 Difference]: Without dead ends: 279 [2024-11-27 23:30:25,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=175, Invalid=331, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:30:25,677 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 174 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:25,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 579 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 23:30:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-27 23:30:25,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 225. [2024-11-27 23:30:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 142 states have (on average 1.3380281690140845) internal successors, (190), 144 states have internal predecessors, (190), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:30:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 346 transitions. [2024-11-27 23:30:25,731 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 346 transitions. Word has length 189 [2024-11-27 23:30:25,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:25,732 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 346 transitions. [2024-11-27 23:30:25,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 346 transitions. [2024-11-27 23:30:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 23:30:25,733 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:25,733 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:25,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 23:30:25,734 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:25,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:25,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1116169194, now seen corresponding path program 1 times [2024-11-27 23:30:25,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:25,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476142181] [2024-11-27 23:30:25,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:25,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:30:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 23:30:40,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:30:40,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476142181] [2024-11-27 23:30:40,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476142181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:30:40,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:30:40,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 23:30:40,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984073550] [2024-11-27 23:30:40,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:30:40,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 23:30:40,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:30:40,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 23:30:40,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:30:40,929 INFO L87 Difference]: Start difference. First operand 225 states and 346 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:30:48,237 INFO L93 Difference]: Finished difference Result 423 states and 594 transitions. [2024-11-27 23:30:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:30:48,238 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 189 [2024-11-27 23:30:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:30:48,241 INFO L225 Difference]: With dead ends: 423 [2024-11-27 23:30:48,241 INFO L226 Difference]: Without dead ends: 421 [2024-11-27 23:30:48,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=173, Invalid=333, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:30:48,242 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 164 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:30:48,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 829 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 23:30:48,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-27 23:30:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 232. [2024-11-27 23:30:48,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 151 states have internal predecessors, (203), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-27 23:30:48,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 359 transitions. [2024-11-27 23:30:48,288 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 359 transitions. Word has length 189 [2024-11-27 23:30:48,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:30:48,289 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 359 transitions. [2024-11-27 23:30:48,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-27 23:30:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 359 transitions. [2024-11-27 23:30:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 23:30:48,291 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:30:48,291 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:30:48,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 23:30:48,292 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:30:48,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:30:48,292 INFO L85 PathProgramCache]: Analyzing trace with hash 249564266, now seen corresponding path program 1 times [2024-11-27 23:30:48,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:30:48,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062269961] [2024-11-27 23:30:48,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:30:48,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:30:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat