./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.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_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb1314039a089ae50ffa2cf06a09d28c366b7983113714c5c1bfc7b71c13fc9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:24:26,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:24:26,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:24:26,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:24:26,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:24:26,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:24:26,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:24:26,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:24:26,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:24:26,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:24:26,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:24:26,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:24:26,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:24:26,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:24:26,599 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:24:26,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:24:26,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:24:26,600 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:24:26,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:26,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:26,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:24:26,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:24:26,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:24:26,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:24:26,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:24:26,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:24:26,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:24:26,602 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_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb1314039a089ae50ffa2cf06a09d28c366b7983113714c5c1bfc7b71c13fc9d [2024-12-02 11:24:26,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:24:26,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:24:26,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:24:26,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:24:26,852 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:24:26,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.i [2024-12-02 11:24:29,469 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/data/034f861de/9a1bff62fe694551adafb2573d522d43/FLAGd64f78cb4 [2024-12-02 11:24:29,724 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:24:29,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.i [2024-12-02 11:24:29,736 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/data/034f861de/9a1bff62fe694551adafb2573d522d43/FLAGd64f78cb4 [2024-12-02 11:24:29,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/data/034f861de/9a1bff62fe694551adafb2573d522d43 [2024-12-02 11:24:29,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:24:29,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:24:29,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:29,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:24:29,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:24:29,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:29" (1/1) ... [2024-12-02 11:24:29,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd5568d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:29, skipping insertion in model container [2024-12-02 11:24:29,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:24:29" (1/1) ... [2024-12-02 11:24:29,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:24:29,920 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_1670cbcf-f414-4895-9134-c2e9a300168e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.i[915,928] [2024-12-02 11:24:30,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:30,108 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:24:30,115 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_1670cbcf-f414-4895-9134-c2e9a300168e/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-5.i[915,928] [2024-12-02 11:24:30,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:24:30,223 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:24:30,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30 WrapperNode [2024-12-02 11:24:30,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:24:30,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:30,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:24:30,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:24:30,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,314 INFO L138 Inliner]: procedures = 26, calls = 102, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 879 [2024-12-02 11:24:30,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:24:30,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:24:30,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:24:30,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:24:30,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,395 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:24:30,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,422 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:24:30,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:24:30,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:24:30,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:24:30,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (1/1) ... [2024-12-02 11:24:30,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:24:30,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:30,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:24:30,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:24:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:24:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:24:30,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:24:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:24:30,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:24:30,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:24:30,647 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:24:30,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:24:31,892 INFO L? ?]: Removed 119 outVars from TransFormulas that were not future-live. [2024-12-02 11:24:31,893 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:24:31,910 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:24:31,910 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:24:31,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:31 BoogieIcfgContainer [2024-12-02 11:24:31,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:24:31,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:24:31,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:24:31,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:24:31,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:24:29" (1/3) ... [2024-12-02 11:24:31,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cae558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:24:31, skipping insertion in model container [2024-12-02 11:24:31,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:24:30" (2/3) ... [2024-12-02 11:24:31,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cae558 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:24:31, skipping insertion in model container [2024-12-02 11:24:31,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:24:31" (3/3) ... [2024-12-02 11:24:31,922 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-5.i [2024-12-02 11:24:31,938 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:24:31,940 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-5.i that has 2 procedures, 357 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:24:32,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:24:32,022 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;@68baaa19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:24:32,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:24:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 265 states have (on average 1.5207547169811322) internal successors, (403), 266 states have internal predecessors, (403), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 11:24:32,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-12-02 11:24:32,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:32,061 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:32,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:32,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1031988803, now seen corresponding path program 1 times [2024-12-02 11:24:32,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:32,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697425000] [2024-12-02 11:24:32,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:32,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:32,760 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-12-02 11:24:32,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:32,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697425000] [2024-12-02 11:24:32,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697425000] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:32,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959434688] [2024-12-02 11:24:32,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:32,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:32,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:32,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:32,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:24:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:33,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 1384 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:24:33,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-12-02 11:24:33,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:24:33,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959434688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:33,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:24:33,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:24:33,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176309760] [2024-12-02 11:24:33,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:33,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:24:33,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:33,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:24:33,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:24:33,318 INFO L87 Difference]: Start difference. First operand has 357 states, 265 states have (on average 1.5207547169811322) internal successors, (403), 266 states have internal predecessors, (403), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:24:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:33,378 INFO L93 Difference]: Finished difference Result 707 states and 1245 transitions. [2024-12-02 11:24:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:24:33,380 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) Word has length 592 [2024-12-02 11:24:33,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:33,388 INFO L225 Difference]: With dead ends: 707 [2024-12-02 11:24:33,388 INFO L226 Difference]: Without dead ends: 353 [2024-12-02 11:24:33,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:24:33,396 INFO L435 NwaCegarLoop]: 572 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, 572 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:33,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:24:33,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-12-02 11:24:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2024-12-02 11:24:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 262 states have (on average 1.5038167938931297) internal successors, (394), 262 states have internal predecessors, (394), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-12-02 11:24:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 572 transitions. [2024-12-02 11:24:33,473 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 572 transitions. Word has length 592 [2024-12-02 11:24:33,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:33,474 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 572 transitions. [2024-12-02 11:24:33,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 76.0) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:24:33,474 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 572 transitions. [2024-12-02 11:24:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:33,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:33,490 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:33,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:24:33,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:24:33,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:33,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:33,692 INFO L85 PathProgramCache]: Analyzing trace with hash -967273876, now seen corresponding path program 1 times [2024-12-02 11:24:33,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:33,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851457950] [2024-12-02 11:24:33,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:33,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:33,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:34,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:34,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851457950] [2024-12-02 11:24:34,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851457950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:34,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:34,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:24:34,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611221872] [2024-12-02 11:24:34,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:34,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:24:34,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:34,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:34,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:34,315 INFO L87 Difference]: Start difference. First operand 353 states and 572 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:34,444 INFO L93 Difference]: Finished difference Result 947 states and 1532 transitions. [2024-12-02 11:24:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:34,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-12-02 11:24:34,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:34,452 INFO L225 Difference]: With dead ends: 947 [2024-12-02 11:24:34,452 INFO L226 Difference]: Without dead ends: 597 [2024-12-02 11:24:34,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:34,454 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 387 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:34,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1100 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:24:34,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-12-02 11:24:34,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 594. [2024-12-02 11:24:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 468 states have (on average 1.5235042735042734) internal successors, (713), 469 states have internal predecessors, (713), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-12-02 11:24:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 959 transitions. [2024-12-02 11:24:34,515 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 959 transitions. Word has length 593 [2024-12-02 11:24:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:34,516 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 959 transitions. [2024-12-02 11:24:34,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:34,517 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 959 transitions. [2024-12-02 11:24:34,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:34,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:34,523 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:34,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:24:34,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:34,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:34,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1854496722, now seen corresponding path program 1 times [2024-12-02 11:24:34,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:34,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476770226] [2024-12-02 11:24:34,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:34,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:35,084 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:35,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:35,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476770226] [2024-12-02 11:24:35,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476770226] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:35,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:35,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:24:35,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485767984] [2024-12-02 11:24:35,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:35,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:24:35,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:35,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:35,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:35,087 INFO L87 Difference]: Start difference. First operand 594 states and 959 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:35,208 INFO L93 Difference]: Finished difference Result 1768 states and 2855 transitions. [2024-12-02 11:24:35,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:35,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-12-02 11:24:35,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:35,219 INFO L225 Difference]: With dead ends: 1768 [2024-12-02 11:24:35,219 INFO L226 Difference]: Without dead ends: 1177 [2024-12-02 11:24:35,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:35,222 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 544 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:35,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1541 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:24:35,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-12-02 11:24:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 639. [2024-12-02 11:24:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 513 states have (on average 1.530214424951267) internal successors, (785), 514 states have internal predecessors, (785), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-12-02 11:24:35,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 1031 transitions. [2024-12-02 11:24:35,288 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 1031 transitions. Word has length 593 [2024-12-02 11:24:35,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:35,290 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 1031 transitions. [2024-12-02 11:24:35,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 1031 transitions. [2024-12-02 11:24:35,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:35,296 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:35,296 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:35,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:24:35,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:35,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:35,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1827431120, now seen corresponding path program 1 times [2024-12-02 11:24:35,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:35,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063495919] [2024-12-02 11:24:35,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:35,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063495919] [2024-12-02 11:24:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063495919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:35,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:35,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:24:35,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046668486] [2024-12-02 11:24:35,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:35,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:24:35,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:35,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:24:35,766 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:35,767 INFO L87 Difference]: Start difference. First operand 639 states and 1031 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:35,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:35,891 INFO L93 Difference]: Finished difference Result 1813 states and 2925 transitions. [2024-12-02 11:24:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:24:35,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-12-02 11:24:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:35,900 INFO L225 Difference]: With dead ends: 1813 [2024-12-02 11:24:35,900 INFO L226 Difference]: Without dead ends: 1177 [2024-12-02 11:24:35,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:24:35,902 INFO L435 NwaCegarLoop]: 601 mSDtfsCounter, 503 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:35,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1157 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:24:35,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2024-12-02 11:24:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 796. [2024-12-02 11:24:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 670 states have (on average 1.5776119402985074) internal successors, (1057), 671 states have internal predecessors, (1057), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2024-12-02 11:24:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1303 transitions. [2024-12-02 11:24:35,968 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1303 transitions. Word has length 593 [2024-12-02 11:24:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:35,969 INFO L471 AbstractCegarLoop]: Abstraction has 796 states and 1303 transitions. [2024-12-02 11:24:35,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1303 transitions. [2024-12-02 11:24:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:35,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:35,976 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:35,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:24:35,976 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:35,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:35,976 INFO L85 PathProgramCache]: Analyzing trace with hash 778592434, now seen corresponding path program 1 times [2024-12-02 11:24:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:35,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074197470] [2024-12-02 11:24:35,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:37,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:37,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074197470] [2024-12-02 11:24:37,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074197470] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:37,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:37,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:24:37,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703087468] [2024-12-02 11:24:37,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:37,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:24:37,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:37,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:24:37,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:24:37,742 INFO L87 Difference]: Start difference. First operand 796 states and 1303 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:38,434 INFO L93 Difference]: Finished difference Result 2770 states and 4572 transitions. [2024-12-02 11:24:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:24:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-12-02 11:24:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:38,446 INFO L225 Difference]: With dead ends: 2770 [2024-12-02 11:24:38,446 INFO L226 Difference]: Without dead ends: 1977 [2024-12-02 11:24:38,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:24:38,449 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 663 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:38,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 2473 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:24:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2024-12-02 11:24:38,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 948. [2024-12-02 11:24:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 731 states have (on average 1.5307797537619698) internal successors, (1119), 732 states have internal predecessors, (1119), 212 states have call successors, (212), 4 states have call predecessors, (212), 4 states have return successors, (212), 211 states have call predecessors, (212), 212 states have call successors, (212) [2024-12-02 11:24:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1543 transitions. [2024-12-02 11:24:38,534 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1543 transitions. Word has length 593 [2024-12-02 11:24:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:38,535 INFO L471 AbstractCegarLoop]: Abstraction has 948 states and 1543 transitions. [2024-12-02 11:24:38,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1543 transitions. [2024-12-02 11:24:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:38,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:38,541 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:24:38,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 524517298, now seen corresponding path program 1 times [2024-12-02 11:24:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085463046] [2024-12-02 11:24:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:42,027 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 39 proven. 225 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:24:42,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:42,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085463046] [2024-12-02 11:24:42,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085463046] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:24:42,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181558843] [2024-12-02 11:24:42,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:42,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:24:42,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:24:42,032 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:24:42,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:24:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:42,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:24:42,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:24:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 6864 proven. 180 refuted. 0 times theorem prover too weak. 8620 trivial. 0 not checked. [2024-12-02 11:24:43,306 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:24:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 84 proven. 180 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:24:43,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181558843] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:24:43,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:24:43,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-12-02 11:24:43,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409593136] [2024-12-02 11:24:43,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:24:43,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:24:43,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:43,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:24:43,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:24:43,924 INFO L87 Difference]: Start difference. First operand 948 states and 1543 transitions. Second operand has 12 states, 12 states have (on average 26.583333333333332) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (226), 4 states have call predecessors, (226), 4 states have call successors, (226) [2024-12-02 11:24:45,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:45,190 INFO L93 Difference]: Finished difference Result 2197 states and 3548 transitions. [2024-12-02 11:24:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 11:24:45,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 26.583333333333332) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (226), 4 states have call predecessors, (226), 4 states have call successors, (226) Word has length 593 [2024-12-02 11:24:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:45,199 INFO L225 Difference]: With dead ends: 2197 [2024-12-02 11:24:45,199 INFO L226 Difference]: Without dead ends: 1404 [2024-12-02 11:24:45,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1206 GetRequests, 1184 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:24:45,202 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 1587 mSDsluCounter, 2044 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:45,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 2510 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:24:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-12-02 11:24:45,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1392. [2024-12-02 11:24:45,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1141 states have (on average 1.5241016652059596) internal successors, (1739), 1144 states have internal predecessors, (1739), 238 states have call successors, (238), 12 states have call predecessors, (238), 12 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) [2024-12-02 11:24:45,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 2215 transitions. [2024-12-02 11:24:45,315 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 2215 transitions. Word has length 593 [2024-12-02 11:24:45,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:45,316 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 2215 transitions. [2024-12-02 11:24:45,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.583333333333332) internal successors, (319), 12 states have internal predecessors, (319), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (226), 4 states have call predecessors, (226), 4 states have call successors, (226) [2024-12-02 11:24:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 2215 transitions. [2024-12-02 11:24:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-12-02 11:24:45,321 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:45,322 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:45,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:24:45,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 11:24:45,522 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:45,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash -287246094, now seen corresponding path program 1 times [2024-12-02 11:24:45,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:45,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286347648] [2024-12-02 11:24:45,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:48,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:48,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:48,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286347648] [2024-12-02 11:24:48,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286347648] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:48,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:48,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:24:48,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145724604] [2024-12-02 11:24:48,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:48,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:24:48,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:48,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:24:48,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:24:48,419 INFO L87 Difference]: Start difference. First operand 1392 states and 2215 transitions. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:50,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:50,986 INFO L93 Difference]: Finished difference Result 6559 states and 10415 transitions. [2024-12-02 11:24:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:24:50,987 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 593 [2024-12-02 11:24:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:51,001 INFO L225 Difference]: With dead ends: 6559 [2024-12-02 11:24:51,001 INFO L226 Difference]: Without dead ends: 5330 [2024-12-02 11:24:51,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:24:51,005 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 4105 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4105 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:51,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4105 Valid, 2854 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:24:51,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5330 states. [2024-12-02 11:24:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5330 to 2672. [2024-12-02 11:24:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2418 states have (on average 1.5996691480562448) internal successors, (3868), 2421 states have internal predecessors, (3868), 238 states have call successors, (238), 15 states have call predecessors, (238), 15 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) [2024-12-02 11:24:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 4344 transitions. [2024-12-02 11:24:51,159 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 4344 transitions. Word has length 593 [2024-12-02 11:24:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:51,160 INFO L471 AbstractCegarLoop]: Abstraction has 2672 states and 4344 transitions. [2024-12-02 11:24:51,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 4344 transitions. [2024-12-02 11:24:51,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:24:51,169 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:51,169 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:51,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:24:51,170 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:51,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1347827869, now seen corresponding path program 1 times [2024-12-02 11:24:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433106545] [2024-12-02 11:24:51,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:52,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:52,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433106545] [2024-12-02 11:24:52,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433106545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:52,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:52,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 11:24:52,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455008519] [2024-12-02 11:24:52,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:52,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:24:52,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:52,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:24:52,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:24:52,551 INFO L87 Difference]: Start difference. First operand 2672 states and 4344 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:54,758 INFO L93 Difference]: Finished difference Result 8386 states and 13617 transitions. [2024-12-02 11:24:54,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:24:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:24:54,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:54,779 INFO L225 Difference]: With dead ends: 8386 [2024-12-02 11:24:54,779 INFO L226 Difference]: Without dead ends: 5881 [2024-12-02 11:24:54,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:24:54,789 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 1849 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 1535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:54,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 3163 Invalid, 1535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 11:24:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2024-12-02 11:24:55,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 3660. [2024-12-02 11:24:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 3404 states have (on average 1.5963572267920094) internal successors, (5434), 3407 states have internal predecessors, (5434), 238 states have call successors, (238), 17 states have call predecessors, (238), 17 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) [2024-12-02 11:24:55,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5910 transitions. [2024-12-02 11:24:55,057 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5910 transitions. Word has length 594 [2024-12-02 11:24:55,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:55,058 INFO L471 AbstractCegarLoop]: Abstraction has 3660 states and 5910 transitions. [2024-12-02 11:24:55,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5910 transitions. [2024-12-02 11:24:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:24:55,067 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:55,067 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:55,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:24:55,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:55,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1592576791, now seen corresponding path program 1 times [2024-12-02 11:24:55,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:55,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499696221] [2024-12-02 11:24:55,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:55,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:55,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:55,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499696221] [2024-12-02 11:24:55,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499696221] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:55,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:55,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:24:55,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006204953] [2024-12-02 11:24:55,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:55,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:24:55,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:55,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:24:55,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:24:55,870 INFO L87 Difference]: Start difference. First operand 3660 states and 5910 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:56,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:24:56,233 INFO L93 Difference]: Finished difference Result 7908 states and 12848 transitions. [2024-12-02 11:24:56,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:24:56,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:24:56,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:24:56,246 INFO L225 Difference]: With dead ends: 7908 [2024-12-02 11:24:56,246 INFO L226 Difference]: Without dead ends: 4415 [2024-12-02 11:24:56,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:24:56,251 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 518 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:24:56,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1418 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:24:56,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2024-12-02 11:24:56,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 3660. [2024-12-02 11:24:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3660 states, 3404 states have (on average 1.5928319623971798) internal successors, (5422), 3407 states have internal predecessors, (5422), 238 states have call successors, (238), 17 states have call predecessors, (238), 17 states have return successors, (238), 235 states have call predecessors, (238), 238 states have call successors, (238) [2024-12-02 11:24:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3660 states to 3660 states and 5898 transitions. [2024-12-02 11:24:56,533 INFO L78 Accepts]: Start accepts. Automaton has 3660 states and 5898 transitions. Word has length 594 [2024-12-02 11:24:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:24:56,533 INFO L471 AbstractCegarLoop]: Abstraction has 3660 states and 5898 transitions. [2024-12-02 11:24:56,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:24:56,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5898 transitions. [2024-12-02 11:24:56,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:24:56,543 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:24:56,543 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:24:56,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:24:56,543 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:24:56,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:24:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1168930069, now seen corresponding path program 1 times [2024-12-02 11:24:56,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:24:56,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376874361] [2024-12-02 11:24:56,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:24:56,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:24:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:24:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:24:58,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:24:58,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376874361] [2024-12-02 11:24:58,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376874361] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:24:58,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:24:58,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 11:24:58,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590656610] [2024-12-02 11:24:58,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:24:58,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 11:24:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:24:58,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 11:24:58,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:24:58,272 INFO L87 Difference]: Start difference. First operand 3660 states and 5898 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:25:01,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:01,821 INFO L93 Difference]: Finished difference Result 9971 states and 15871 transitions. [2024-12-02 11:25:01,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:25:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:25:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:01,843 INFO L225 Difference]: With dead ends: 9971 [2024-12-02 11:25:01,844 INFO L226 Difference]: Without dead ends: 6478 [2024-12-02 11:25:01,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:25:01,848 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 2142 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 2224 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 2486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 2224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:01,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 4161 Invalid, 2486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 2224 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-12-02 11:25:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6478 states. [2024-12-02 11:25:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6478 to 4262. [2024-12-02 11:25:02,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4262 states, 3869 states have (on average 1.5629361592142672) internal successors, (6047), 3876 states have internal predecessors, (6047), 363 states have call successors, (363), 29 states have call predecessors, (363), 29 states have return successors, (363), 356 states have call predecessors, (363), 363 states have call successors, (363) [2024-12-02 11:25:02,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 6773 transitions. [2024-12-02 11:25:02,261 INFO L78 Accepts]: Start accepts. Automaton has 4262 states and 6773 transitions. Word has length 594 [2024-12-02 11:25:02,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:02,261 INFO L471 AbstractCegarLoop]: Abstraction has 4262 states and 6773 transitions. [2024-12-02 11:25:02,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:25:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4262 states and 6773 transitions. [2024-12-02 11:25:02,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:25:02,272 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:02,272 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:02,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:25:02,273 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:02,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:02,273 INFO L85 PathProgramCache]: Analyzing trace with hash -587680399, now seen corresponding path program 1 times [2024-12-02 11:25:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:02,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601751261] [2024-12-02 11:25:02,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:25:05,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:05,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601751261] [2024-12-02 11:25:05,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601751261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:05,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:05,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-12-02 11:25:05,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867213411] [2024-12-02 11:25:05,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:05,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 11:25:05,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:05,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 11:25:05,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-12-02 11:25:05,328 INFO L87 Difference]: Start difference. First operand 4262 states and 6773 transitions. Second operand has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:25:12,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:12,917 INFO L93 Difference]: Finished difference Result 25380 states and 40252 transitions. [2024-12-02 11:25:12,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 11:25:12,918 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 594 [2024-12-02 11:25:12,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:12,950 INFO L225 Difference]: With dead ends: 25380 [2024-12-02 11:25:12,950 INFO L226 Difference]: Without dead ends: 21285 [2024-12-02 11:25:12,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=410, Invalid=1396, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 11:25:12,956 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 4982 mSDsluCounter, 8556 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 9332 SdHoareTripleChecker+Invalid, 6050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 923 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:12,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 9332 Invalid, 6050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [923 Valid, 5127 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-12-02 11:25:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21285 states. [2024-12-02 11:25:13,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21285 to 14037. [2024-12-02 11:25:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14037 states, 13090 states have (on average 1.5727272727272728) internal successors, (20587), 13116 states have internal predecessors, (20587), 867 states have call successors, (867), 79 states have call predecessors, (867), 79 states have return successors, (867), 841 states have call predecessors, (867), 867 states have call successors, (867) [2024-12-02 11:25:13,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 22321 transitions. [2024-12-02 11:25:13,888 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 22321 transitions. Word has length 594 [2024-12-02 11:25:13,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:13,888 INFO L471 AbstractCegarLoop]: Abstraction has 14037 states and 22321 transitions. [2024-12-02 11:25:13,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.5) internal successors, (152), 16 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:25:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 22321 transitions. [2024-12-02 11:25:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:25:13,899 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:13,899 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:13,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:25:13,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:13,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:13,900 INFO L85 PathProgramCache]: Analyzing trace with hash -312920785, now seen corresponding path program 1 times [2024-12-02 11:25:13,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:13,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359060631] [2024-12-02 11:25:13,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:13,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:25:19,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:19,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359060631] [2024-12-02 11:25:19,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359060631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:19,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:19,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-12-02 11:25:19,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349323495] [2024-12-02 11:25:19,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:19,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 11:25:19,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:19,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 11:25:19,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:25:19,854 INFO L87 Difference]: Start difference. First operand 14037 states and 22321 transitions. Second operand has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 17 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:25:33,241 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 120 DAG size of output: 88 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:25:43,009 WARN L286 SmtUtils]: Spent 8.19s on a formula simplification. DAG size of input: 126 DAG size of output: 93 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:25:51,274 WARN L286 SmtUtils]: Spent 8.18s on a formula simplification. DAG size of input: 131 DAG size of output: 95 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:26:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:26:01,755 INFO L93 Difference]: Finished difference Result 104109 states and 166498 transitions. [2024-12-02 11:26:01,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-12-02 11:26:01,756 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 17 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:26:01,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:26:01,896 INFO L225 Difference]: With dead ends: 104109 [2024-12-02 11:26:01,896 INFO L226 Difference]: Without dead ends: 90239 [2024-12-02 11:26:01,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 11:26:01,926 INFO L435 NwaCegarLoop]: 1233 mSDtfsCounter, 9450 mSDsluCounter, 9035 mSDsCounter, 0 mSdLazyCounter, 6025 mSolverCounterSat, 1434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9450 SdHoareTripleChecker+Valid, 10268 SdHoareTripleChecker+Invalid, 7459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1434 IncrementalHoareTripleChecker+Valid, 6025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:26:01,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9450 Valid, 10268 Invalid, 7459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1434 Valid, 6025 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-12-02 11:26:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90239 states. [2024-12-02 11:26:04,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90239 to 32951. [2024-12-02 11:26:04,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32951 states, 30487 states have (on average 1.561649227539607) internal successors, (47610), 30567 states have internal predecessors, (47610), 2235 states have call successors, (2235), 228 states have call predecessors, (2235), 228 states have return successors, (2235), 2155 states have call predecessors, (2235), 2235 states have call successors, (2235) [2024-12-02 11:26:04,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32951 states to 32951 states and 52080 transitions. [2024-12-02 11:26:04,678 INFO L78 Accepts]: Start accepts. Automaton has 32951 states and 52080 transitions. Word has length 594 [2024-12-02 11:26:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:26:04,678 INFO L471 AbstractCegarLoop]: Abstraction has 32951 states and 52080 transitions. [2024-12-02 11:26:04,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.941176470588236) internal successors, (152), 17 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:26:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 32951 states and 52080 transitions. [2024-12-02 11:26:04,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:26:04,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:26:04,702 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:26:04,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:26:04,702 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:26:04,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:26:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash -202091356, now seen corresponding path program 1 times [2024-12-02 11:26:04,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:26:04,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225896865] [2024-12-02 11:26:04,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:26:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:26:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:26:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:26:14,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:26:14,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225896865] [2024-12-02 11:26:14,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225896865] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:26:14,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:26:14,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-12-02 11:26:14,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749608067] [2024-12-02 11:26:14,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:26:14,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-02 11:26:14,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:26:14,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-02 11:26:14,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:26:14,459 INFO L87 Difference]: Start difference. First operand 32951 states and 52080 transitions. Second operand has 23 states, 23 states have (on average 6.608695652173913) internal successors, (152), 23 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:27:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:27:28,992 INFO L93 Difference]: Finished difference Result 94974 states and 150656 transitions. [2024-12-02 11:27:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-12-02 11:27:28,993 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.608695652173913) internal successors, (152), 23 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 594 [2024-12-02 11:27:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:27:29,071 INFO L225 Difference]: With dead ends: 94974 [2024-12-02 11:27:29,071 INFO L226 Difference]: Without dead ends: 81104 [2024-12-02 11:27:29,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 37.0s TimeCoverageRelationStatistics Valid=775, Invalid=2765, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 11:27:29,093 INFO L435 NwaCegarLoop]: 1109 mSDtfsCounter, 11518 mSDsluCounter, 14254 mSDsCounter, 0 mSdLazyCounter, 11544 mSolverCounterSat, 787 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11518 SdHoareTripleChecker+Valid, 15363 SdHoareTripleChecker+Invalid, 12331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 11544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:27:29,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11518 Valid, 15363 Invalid, 12331 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [787 Valid, 11544 Invalid, 0 Unknown, 0 Unchecked, 35.4s Time] [2024-12-02 11:27:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81104 states. [2024-12-02 11:27:31,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81104 to 31476. [2024-12-02 11:27:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31476 states, 29263 states have (on average 1.5690804087072412) internal successors, (45916), 29331 states have internal predecessors, (45916), 2005 states have call successors, (2005), 207 states have call predecessors, (2005), 207 states have return successors, (2005), 1937 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-12-02 11:27:31,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31476 states to 31476 states and 49926 transitions. [2024-12-02 11:27:31,552 INFO L78 Accepts]: Start accepts. Automaton has 31476 states and 49926 transitions. Word has length 594 [2024-12-02 11:27:31,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:27:31,552 INFO L471 AbstractCegarLoop]: Abstraction has 31476 states and 49926 transitions. [2024-12-02 11:27:31,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.608695652173913) internal successors, (152), 23 states have internal predecessors, (152), 2 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:27:31,553 INFO L276 IsEmpty]: Start isEmpty. Operand 31476 states and 49926 transitions. [2024-12-02 11:27:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:27:31,573 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:27:31,574 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:27:31,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:27:31,574 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:27:31,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:27:31,574 INFO L85 PathProgramCache]: Analyzing trace with hash 455102254, now seen corresponding path program 1 times [2024-12-02 11:27:31,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:27:31,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336596534] [2024-12-02 11:27:31,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:27:31,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:27:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:27:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:27:38,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:27:38,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336596534] [2024-12-02 11:27:38,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336596534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:27:38,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:27:38,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 11:27:38,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187488777] [2024-12-02 11:27:38,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:27:38,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:27:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:27:38,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:27:38,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:27:38,026 INFO L87 Difference]: Start difference. First operand 31476 states and 49926 transitions. Second operand has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 18 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:27:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:27:59,276 INFO L93 Difference]: Finished difference Result 91170 states and 144843 transitions. [2024-12-02 11:27:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 11:27:59,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 18 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:27:59,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:27:59,373 INFO L225 Difference]: With dead ends: 91170 [2024-12-02 11:27:59,373 INFO L226 Difference]: Without dead ends: 75947 [2024-12-02 11:27:59,399 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=504, Invalid=1566, Unknown=0, NotChecked=0, Total=2070 [2024-12-02 11:27:59,399 INFO L435 NwaCegarLoop]: 1209 mSDtfsCounter, 7325 mSDsluCounter, 9527 mSDsCounter, 0 mSdLazyCounter, 6404 mSolverCounterSat, 1618 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7325 SdHoareTripleChecker+Valid, 10736 SdHoareTripleChecker+Invalid, 8022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 6404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:27:59,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7325 Valid, 10736 Invalid, 8022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1618 Valid, 6404 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-12-02 11:27:59,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75947 states. [2024-12-02 11:28:02,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75947 to 40173. [2024-12-02 11:28:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40173 states, 37765 states have (on average 1.585197934595525) internal successors, (59865), 37836 states have internal predecessors, (59865), 2185 states have call successors, (2185), 222 states have call predecessors, (2185), 222 states have return successors, (2185), 2114 states have call predecessors, (2185), 2185 states have call successors, (2185) [2024-12-02 11:28:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40173 states to 40173 states and 64235 transitions. [2024-12-02 11:28:02,400 INFO L78 Accepts]: Start accepts. Automaton has 40173 states and 64235 transitions. Word has length 594 [2024-12-02 11:28:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:28:02,401 INFO L471 AbstractCegarLoop]: Abstraction has 40173 states and 64235 transitions. [2024-12-02 11:28:02,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.444444444444445) internal successors, (152), 18 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:28:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 40173 states and 64235 transitions. [2024-12-02 11:28:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:28:02,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:28:02,437 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:28:02,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:28:02,438 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:28:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:28:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash 729861868, now seen corresponding path program 1 times [2024-12-02 11:28:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:28:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778937757] [2024-12-02 11:28:02,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:28:02,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:28:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:28:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:28:04,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:28:04,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778937757] [2024-12-02 11:28:04,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778937757] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:28:04,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:28:04,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 11:28:04,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407317210] [2024-12-02 11:28:04,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:28:04,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:28:04,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:28:04,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:28:04,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:28:04,845 INFO L87 Difference]: Start difference. First operand 40173 states and 64235 transitions. Second operand has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:28:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:28:17,009 INFO L93 Difference]: Finished difference Result 141182 states and 225010 transitions. [2024-12-02 11:28:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:28:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 594 [2024-12-02 11:28:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:28:17,129 INFO L225 Difference]: With dead ends: 141182 [2024-12-02 11:28:17,129 INFO L226 Difference]: Without dead ends: 101188 [2024-12-02 11:28:17,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:28:17,169 INFO L435 NwaCegarLoop]: 1197 mSDtfsCounter, 4444 mSDsluCounter, 7775 mSDsCounter, 0 mSdLazyCounter, 2827 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4444 SdHoareTripleChecker+Valid, 8972 SdHoareTripleChecker+Invalid, 3685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 2827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:28:17,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4444 Valid, 8972 Invalid, 3685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 2827 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 11:28:17,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101188 states. [2024-12-02 11:28:21,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101188 to 57799. [2024-12-02 11:28:21,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57799 states, 54635 states have (on average 1.5863640523473963) internal successors, (86671), 54738 states have internal predecessors, (86671), 2857 states have call successors, (2857), 306 states have call predecessors, (2857), 306 states have return successors, (2857), 2754 states have call predecessors, (2857), 2857 states have call successors, (2857) [2024-12-02 11:28:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57799 states to 57799 states and 92385 transitions. [2024-12-02 11:28:21,551 INFO L78 Accepts]: Start accepts. Automaton has 57799 states and 92385 transitions. Word has length 594 [2024-12-02 11:28:21,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:28:21,552 INFO L471 AbstractCegarLoop]: Abstraction has 57799 states and 92385 transitions. [2024-12-02 11:28:21,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.666666666666666) internal successors, (152), 12 states have internal predecessors, (152), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:28:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 57799 states and 92385 transitions. [2024-12-02 11:28:21,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-12-02 11:28:21,581 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:28:21,581 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:28:21,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:28:21,581 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:28:21,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:28:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash 2071003953, now seen corresponding path program 1 times [2024-12-02 11:28:21,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:28:21,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061970977] [2024-12-02 11:28:21,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:28:21,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:28:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:28:23,323 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 63 proven. 201 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:28:23,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:28:23,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061970977] [2024-12-02 11:28:23,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061970977] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:28:23,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039494487] [2024-12-02 11:28:23,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:28:23,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:28:23,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:28:23,325 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:28:23,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:28:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:28:23,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 11:28:23,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:28:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 9914 proven. 318 refuted. 0 times theorem prover too weak. 5432 trivial. 0 not checked. [2024-12-02 11:28:25,839 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:28:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 204 proven. 321 refuted. 0 times theorem prover too weak. 15139 trivial. 0 not checked. [2024-12-02 11:28:27,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039494487] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:28:27,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:28:27,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 11] total 24 [2024-12-02 11:28:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333838729] [2024-12-02 11:28:27,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:28:27,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 11:28:27,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:28:27,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 11:28:27,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:28:27,260 INFO L87 Difference]: Start difference. First operand 57799 states and 92385 transitions. Second operand has 24 states, 24 states have (on average 16.375) internal successors, (393), 24 states have internal predecessors, (393), 7 states have call successors, (250), 4 states have call predecessors, (250), 9 states have return successors, (251), 7 states have call predecessors, (251), 7 states have call successors, (251) [2024-12-02 11:29:00,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:00,892 INFO L93 Difference]: Finished difference Result 391754 states and 620802 transitions. [2024-12-02 11:29:00,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-12-02 11:29:00,892 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 16.375) internal successors, (393), 24 states have internal predecessors, (393), 7 states have call successors, (250), 4 states have call predecessors, (250), 9 states have return successors, (251), 7 states have call predecessors, (251), 7 states have call successors, (251) Word has length 594 [2024-12-02 11:29:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:01,329 INFO L225 Difference]: With dead ends: 391754 [2024-12-02 11:29:01,329 INFO L226 Difference]: Without dead ends: 334134 [2024-12-02 11:29:01,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1345 GetRequests, 1192 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9755 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3845, Invalid=20025, Unknown=0, NotChecked=0, Total=23870 [2024-12-02 11:29:01,402 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 7221 mSDsluCounter, 8390 mSDsCounter, 0 mSdLazyCounter, 6016 mSolverCounterSat, 1976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7241 SdHoareTripleChecker+Valid, 9375 SdHoareTripleChecker+Invalid, 7992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1976 IncrementalHoareTripleChecker+Valid, 6016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:01,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7241 Valid, 9375 Invalid, 7992 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1976 Valid, 6016 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-12-02 11:29:01,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334134 states. [2024-12-02 11:29:19,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334134 to 191656. [2024-12-02 11:29:19,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191656 states, 179236 states have (on average 1.5382400856970697) internal successors, (275708), 179709 states have internal predecessors, (275708), 10853 states have call successors, (10853), 1566 states have call predecessors, (10853), 1566 states have return successors, (10853), 10380 states have call predecessors, (10853), 10853 states have call successors, (10853) [2024-12-02 11:29:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191656 states to 191656 states and 297414 transitions. [2024-12-02 11:29:19,650 INFO L78 Accepts]: Start accepts. Automaton has 191656 states and 297414 transitions. Word has length 594 [2024-12-02 11:29:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:29:19,651 INFO L471 AbstractCegarLoop]: Abstraction has 191656 states and 297414 transitions. [2024-12-02 11:29:19,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.375) internal successors, (393), 24 states have internal predecessors, (393), 7 states have call successors, (250), 4 states have call predecessors, (250), 9 states have return successors, (251), 7 states have call predecessors, (251), 7 states have call successors, (251) [2024-12-02 11:29:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 191656 states and 297414 transitions. [2024-12-02 11:29:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-12-02 11:29:19,717 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:29:19,717 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:29:19,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 11:29:19,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 11:29:19,917 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:29:19,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:29:19,918 INFO L85 PathProgramCache]: Analyzing trace with hash 835484141, now seen corresponding path program 1 times [2024-12-02 11:29:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:29:19,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8147491] [2024-12-02 11:29:19,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:29:19,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:29:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:29:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:29:21,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:29:21,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8147491] [2024-12-02 11:29:21,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8147491] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:29:21,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:29:21,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 11:29:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655024444] [2024-12-02 11:29:21,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:29:21,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 11:29:21,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:29:21,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 11:29:21,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:29:21,769 INFO L87 Difference]: Start difference. First operand 191656 states and 297414 transitions. Second operand has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:29:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:29:49,012 INFO L93 Difference]: Finished difference Result 364165 states and 564728 transitions. [2024-12-02 11:29:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 11:29:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 595 [2024-12-02 11:29:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:29:49,330 INFO L225 Difference]: With dead ends: 364165 [2024-12-02 11:29:49,330 INFO L226 Difference]: Without dead ends: 227653 [2024-12-02 11:29:49,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:29:49,420 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 2167 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 2733 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:29:49,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 2733 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 11:29:49,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227653 states. [2024-12-02 11:30:09,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227653 to 191005. [2024-12-02 11:30:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191005 states, 177180 states have (on average 1.5318997629529292) internal successors, (271422), 177707 states have internal predecessors, (271422), 12075 states have call successors, (12075), 1749 states have call predecessors, (12075), 1749 states have return successors, (12075), 11548 states have call predecessors, (12075), 12075 states have call successors, (12075) [2024-12-02 11:30:09,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191005 states to 191005 states and 295572 transitions. [2024-12-02 11:30:09,714 INFO L78 Accepts]: Start accepts. Automaton has 191005 states and 295572 transitions. Word has length 595 [2024-12-02 11:30:09,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:09,714 INFO L471 AbstractCegarLoop]: Abstraction has 191005 states and 295572 transitions. [2024-12-02 11:30:09,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:30:09,715 INFO L276 IsEmpty]: Start isEmpty. Operand 191005 states and 295572 transitions. [2024-12-02 11:30:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2024-12-02 11:30:09,774 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:30:09,774 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:30:09,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:30:09,774 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:30:09,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:30:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1673917050, now seen corresponding path program 1 times [2024-12-02 11:30:09,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:30:09,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613574245] [2024-12-02 11:30:09,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:09,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:30:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 84 proven. 180 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:30:11,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:30:11,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613574245] [2024-12-02 11:30:11,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613574245] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:30:11,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207439270] [2024-12-02 11:30:11,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:30:11,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:30:11,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:30:11,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:30:11,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:30:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:30:11,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:30:11,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:30:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 5850 proven. 63 refuted. 0 times theorem prover too weak. 9751 trivial. 0 not checked. [2024-12-02 11:30:12,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:30:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 201 proven. 63 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:30:12,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207439270] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:30:12,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:30:12,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 12 [2024-12-02 11:30:12,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104551714] [2024-12-02 11:30:12,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:30:12,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 11:30:12,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:30:12,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 11:30:12,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:30:12,472 INFO L87 Difference]: Start difference. First operand 191005 states and 295572 transitions. Second operand has 12 states, 12 states have (on average 27.583333333333332) internal successors, (331), 12 states have internal predecessors, (331), 6 states have call successors, (199), 2 states have call predecessors, (199), 4 states have return successors, (200), 6 states have call predecessors, (200), 6 states have call successors, (200) [2024-12-02 11:30:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:30:38,964 INFO L93 Difference]: Finished difference Result 432580 states and 669341 transitions. [2024-12-02 11:30:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 11:30:38,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 27.583333333333332) internal successors, (331), 12 states have internal predecessors, (331), 6 states have call successors, (199), 2 states have call predecessors, (199), 4 states have return successors, (200), 6 states have call predecessors, (200), 6 states have call successors, (200) Word has length 595 [2024-12-02 11:30:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:30:39,823 INFO L225 Difference]: With dead ends: 432580 [2024-12-02 11:30:39,823 INFO L226 Difference]: Without dead ends: 241774 [2024-12-02 11:30:40,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1211 GetRequests, 1187 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=463, Unknown=0, NotChecked=0, Total=650 [2024-12-02 11:30:40,022 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 1400 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:30:40,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 2218 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:30:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241774 states. [2024-12-02 11:30:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241774 to 157705. [2024-12-02 11:30:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157705 states, 147176 states have (on average 1.525568027395771) internal successors, (224527), 147522 states have internal predecessors, (224527), 9183 states have call successors, (9183), 1345 states have call predecessors, (9183), 1345 states have return successors, (9183), 8837 states have call predecessors, (9183), 9183 states have call successors, (9183) [2024-12-02 11:30:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157705 states to 157705 states and 242893 transitions. [2024-12-02 11:30:59,850 INFO L78 Accepts]: Start accepts. Automaton has 157705 states and 242893 transitions. Word has length 595 [2024-12-02 11:30:59,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:30:59,851 INFO L471 AbstractCegarLoop]: Abstraction has 157705 states and 242893 transitions. [2024-12-02 11:30:59,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 27.583333333333332) internal successors, (331), 12 states have internal predecessors, (331), 6 states have call successors, (199), 2 states have call predecessors, (199), 4 states have return successors, (200), 6 states have call predecessors, (200), 6 states have call successors, (200) [2024-12-02 11:30:59,851 INFO L276 IsEmpty]: Start isEmpty. Operand 157705 states and 242893 transitions. [2024-12-02 11:31:00,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-12-02 11:31:00,035 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:31:00,035 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:31:00,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:31:00,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 11:31:00,236 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:31:00,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:31:00,237 INFO L85 PathProgramCache]: Analyzing trace with hash -767499679, now seen corresponding path program 1 times [2024-12-02 11:31:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:31:00,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610105625] [2024-12-02 11:31:00,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:31:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:07,657 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 99 proven. 165 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:31:07,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:31:07,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610105625] [2024-12-02 11:31:07,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610105625] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:31:07,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757616103] [2024-12-02 11:31:07,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:31:07,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:31:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:31:07,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:31:07,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:31:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:31:08,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 11:31:08,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:31:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 7414 proven. 165 refuted. 0 times theorem prover too weak. 8085 trivial. 0 not checked. [2024-12-02 11:31:11,420 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:31:13,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 99 proven. 165 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:31:13,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757616103] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:31:13,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:31:13,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2024-12-02 11:31:13,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054409384] [2024-12-02 11:31:13,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:31:13,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-12-02 11:31:13,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:31:13,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-12-02 11:31:13,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:31:13,303 INFO L87 Difference]: Start difference. First operand 157705 states and 242893 transitions. Second operand has 27 states, 27 states have (on average 14.925925925925926) internal successors, (403), 27 states have internal predecessors, (403), 6 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 6 states have call predecessors, (267), 6 states have call successors, (267) [2024-12-02 11:32:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:32:37,394 INFO L93 Difference]: Finished difference Result 714248 states and 1093958 transitions. [2024-12-02 11:32:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2024-12-02 11:32:37,397 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 14.925925925925926) internal successors, (403), 27 states have internal predecessors, (403), 6 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 6 states have call predecessors, (267), 6 states have call successors, (267) Word has length 596 [2024-12-02 11:32:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:32:39,229 INFO L225 Difference]: With dead ends: 714248 [2024-12-02 11:32:39,230 INFO L226 Difference]: Without dead ends: 556750 [2024-12-02 11:32:39,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1371 GetRequests, 1193 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12596 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4441, Invalid=27779, Unknown=0, NotChecked=0, Total=32220 [2024-12-02 11:32:39,505 INFO L435 NwaCegarLoop]: 1743 mSDtfsCounter, 13575 mSDsluCounter, 22702 mSDsCounter, 0 mSdLazyCounter, 10579 mSolverCounterSat, 4122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13739 SdHoareTripleChecker+Valid, 24445 SdHoareTripleChecker+Invalid, 14701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4122 IncrementalHoareTripleChecker+Valid, 10579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:32:39,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13739 Valid, 24445 Invalid, 14701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4122 Valid, 10579 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2024-12-02 11:32:39,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556750 states. [2024-12-02 11:33:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556750 to 168951. [2024-12-02 11:33:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168951 states, 156256 states have (on average 1.5204472148269506) internal successors, (237579), 156662 states have internal predecessors, (237579), 11105 states have call successors, (11105), 1589 states have call predecessors, (11105), 1589 states have return successors, (11105), 10699 states have call predecessors, (11105), 11105 states have call successors, (11105) [2024-12-02 11:33:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168951 states to 168951 states and 259789 transitions. [2024-12-02 11:33:05,189 INFO L78 Accepts]: Start accepts. Automaton has 168951 states and 259789 transitions. Word has length 596 [2024-12-02 11:33:05,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:33:05,191 INFO L471 AbstractCegarLoop]: Abstraction has 168951 states and 259789 transitions. [2024-12-02 11:33:05,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 14.925925925925926) internal successors, (403), 27 states have internal predecessors, (403), 6 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 6 states have call predecessors, (267), 6 states have call successors, (267) [2024-12-02 11:33:05,192 INFO L276 IsEmpty]: Start isEmpty. Operand 168951 states and 259789 transitions. [2024-12-02 11:33:05,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 597 [2024-12-02 11:33:05,391 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:33:05,392 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:05,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:33:05,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:33:05,593 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:33:05,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:05,594 INFO L85 PathProgramCache]: Analyzing trace with hash -624540899, now seen corresponding path program 1 times [2024-12-02 11:33:05,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:05,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832342875] [2024-12-02 11:33:05,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:05,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:09,180 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:33:09,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:09,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832342875] [2024-12-02 11:33:09,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832342875] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:33:09,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:33:09,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:33:09,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120799532] [2024-12-02 11:33:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:33:09,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:33:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:33:09,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:33:09,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:33:09,185 INFO L87 Difference]: Start difference. First operand 168951 states and 259789 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:33:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:33:31,670 INFO L93 Difference]: Finished difference Result 362927 states and 558193 transitions. [2024-12-02 11:33:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:33:31,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 596 [2024-12-02 11:33:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:33:32,115 INFO L225 Difference]: With dead ends: 362927 [2024-12-02 11:33:32,115 INFO L226 Difference]: Without dead ends: 194183 [2024-12-02 11:33:32,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:33:32,211 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 406 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:33:32,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1677 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:33:32,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194183 states. [2024-12-02 11:33:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194183 to 168967. [2024-12-02 11:33:53,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168967 states, 156272 states have (on average 1.5204515204259241) internal successors, (237604), 156678 states have internal predecessors, (237604), 11105 states have call successors, (11105), 1589 states have call predecessors, (11105), 1589 states have return successors, (11105), 10699 states have call predecessors, (11105), 11105 states have call successors, (11105) [2024-12-02 11:33:54,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168967 states to 168967 states and 259814 transitions. [2024-12-02 11:33:54,432 INFO L78 Accepts]: Start accepts. Automaton has 168967 states and 259814 transitions. Word has length 596 [2024-12-02 11:33:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:33:54,433 INFO L471 AbstractCegarLoop]: Abstraction has 168967 states and 259814 transitions. [2024-12-02 11:33:54,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-12-02 11:33:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 168967 states and 259814 transitions. [2024-12-02 11:33:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-12-02 11:33:54,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:33:54,495 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:33:54,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:33:54,496 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:33:54,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:33:54,498 INFO L85 PathProgramCache]: Analyzing trace with hash -73493459, now seen corresponding path program 1 times [2024-12-02 11:33:54,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:33:54,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128148807] [2024-12-02 11:33:54,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:54,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:33:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 168 proven. 96 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:33:57,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:33:57,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128148807] [2024-12-02 11:33:57,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128148807] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:33:57,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110507591] [2024-12-02 11:33:57,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:33:57,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:33:57,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:33:57,864 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:33:58,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:33:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:33:58,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 11:33:58,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:33:59,563 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 5023 proven. 420 refuted. 0 times theorem prover too weak. 10221 trivial. 0 not checked. [2024-12-02 11:33:59,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:34:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 51 proven. 213 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:34:00,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110507591] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:34:00,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:34:00,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 7] total 18 [2024-12-02 11:34:00,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910716300] [2024-12-02 11:34:00,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:34:00,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:34:00,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:00,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:34:00,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:34:00,411 INFO L87 Difference]: Start difference. First operand 168967 states and 259814 transitions. Second operand has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 4 states have call successors, (231), 3 states have call predecessors, (231), 5 states have return successors, (233), 4 states have call predecessors, (233), 4 states have call successors, (233) [2024-12-02 11:34:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:13,508 INFO L93 Difference]: Finished difference Result 256958 states and 393483 transitions. [2024-12-02 11:34:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 11:34:13,509 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 4 states have call successors, (231), 3 states have call predecessors, (231), 5 states have return successors, (233), 4 states have call predecessors, (233), 4 states have call successors, (233) Word has length 597 [2024-12-02 11:34:13,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:13,670 INFO L225 Difference]: With dead ends: 256958 [2024-12-02 11:34:13,670 INFO L226 Difference]: Without dead ends: 88214 [2024-12-02 11:34:13,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 1188 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 697 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=587, Invalid=1963, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 11:34:13,766 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 4114 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 1012 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1012 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:13,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4116 Valid, 2633 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1012 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:34:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88214 states. [2024-12-02 11:34:23,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88214 to 77970. [2024-12-02 11:34:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77970 states, 70437 states have (on average 1.4806706702443317) internal successors, (104294), 70649 states have internal predecessors, (104294), 6353 states have call successors, (6353), 1179 states have call predecessors, (6353), 1179 states have return successors, (6353), 6141 states have call predecessors, (6353), 6353 states have call successors, (6353) [2024-12-02 11:34:23,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77970 states to 77970 states and 117000 transitions. [2024-12-02 11:34:23,896 INFO L78 Accepts]: Start accepts. Automaton has 77970 states and 117000 transitions. Word has length 597 [2024-12-02 11:34:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:34:23,897 INFO L471 AbstractCegarLoop]: Abstraction has 77970 states and 117000 transitions. [2024-12-02 11:34:23,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 20.38888888888889) internal successors, (367), 18 states have internal predecessors, (367), 4 states have call successors, (231), 3 states have call predecessors, (231), 5 states have return successors, (233), 4 states have call predecessors, (233), 4 states have call successors, (233) [2024-12-02 11:34:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 77970 states and 117000 transitions. [2024-12-02 11:34:23,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-12-02 11:34:23,912 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:34:23,913 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:34:23,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:34:24,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-02 11:34:24,114 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:34:24,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:34:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash -116804889, now seen corresponding path program 1 times [2024-12-02 11:34:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:34:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136981721] [2024-12-02 11:34:24,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:34:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:34:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:34:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-12-02 11:34:29,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:34:29,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136981721] [2024-12-02 11:34:29,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136981721] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:34:29,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:34:29,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-12-02 11:34:29,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655667519] [2024-12-02 11:34:29,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:34:29,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:34:29,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:34:29,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:34:29,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:34:29,100 INFO L87 Difference]: Start difference. First operand 77970 states and 117000 transitions. Second operand has 18 states, 18 states have (on average 8.666666666666666) internal successors, (156), 18 states have internal predecessors, (156), 3 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2024-12-02 11:34:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:34:53,415 INFO L93 Difference]: Finished difference Result 152642 states and 227836 transitions. [2024-12-02 11:34:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 11:34:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.666666666666666) internal successors, (156), 18 states have internal predecessors, (156), 3 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) Word has length 598 [2024-12-02 11:34:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:34:53,578 INFO L225 Difference]: With dead ends: 152642 [2024-12-02 11:34:53,579 INFO L226 Difference]: Without dead ends: 106854 [2024-12-02 11:34:53,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=272, Invalid=918, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 11:34:53,624 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 3907 mSDsluCounter, 5037 mSDsCounter, 0 mSdLazyCounter, 3701 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 5601 SdHoareTripleChecker+Invalid, 4663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 3701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:34:53,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3907 Valid, 5601 Invalid, 4663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [962 Valid, 3701 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 11:34:53,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106854 states. [2024-12-02 11:35:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106854 to 79038. [2024-12-02 11:35:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79038 states, 71504 states have (on average 1.4821128887894384) internal successors, (105977), 71716 states have internal predecessors, (105977), 6353 states have call successors, (6353), 1180 states have call predecessors, (6353), 1180 states have return successors, (6353), 6141 states have call predecessors, (6353), 6353 states have call successors, (6353) [2024-12-02 11:35:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79038 states to 79038 states and 118683 transitions. [2024-12-02 11:35:04,319 INFO L78 Accepts]: Start accepts. Automaton has 79038 states and 118683 transitions. Word has length 598 [2024-12-02 11:35:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:35:04,320 INFO L471 AbstractCegarLoop]: Abstraction has 79038 states and 118683 transitions. [2024-12-02 11:35:04,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.666666666666666) internal successors, (156), 18 states have internal predecessors, (156), 3 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2024-12-02 11:35:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 79038 states and 118683 transitions. [2024-12-02 11:35:04,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-12-02 11:35:04,335 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:35:04,335 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:35:04,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:35:04,335 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:35:04,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:35:04,336 INFO L85 PathProgramCache]: Analyzing trace with hash -189191447, now seen corresponding path program 1 times [2024-12-02 11:35:04,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:35:04,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660216252] [2024-12-02 11:35:04,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:04,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:35:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:06,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 261 proven. 3 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-12-02 11:35:06,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:35:06,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660216252] [2024-12-02 11:35:06,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660216252] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:35:06,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984696905] [2024-12-02 11:35:06,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:35:06,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:35:06,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:35:06,853 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:35:06,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1670cbcf-f414-4895-9134-c2e9a300168e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:35:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:35:07,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-02 11:35:07,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:35:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 613 proven. 0 refuted. 0 times theorem prover too weak. 15051 trivial. 0 not checked. [2024-12-02 11:35:09,315 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:35:09,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984696905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:35:09,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:35:09,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [15] total 28 [2024-12-02 11:35:09,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629532388] [2024-12-02 11:35:09,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:35:09,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-12-02 11:35:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:35:09,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-12-02 11:35:09,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-12-02 11:35:09,317 INFO L87 Difference]: Start difference. First operand 79038 states and 118683 transitions. Second operand has 15 states, 15 states have (on average 10.8) internal successors, (162), 13 states have internal predecessors, (162), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (89), 3 states have call predecessors, (89), 2 states have call successors, (89) [2024-12-02 11:35:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:35:30,333 INFO L93 Difference]: Finished difference Result 168854 states and 252565 transitions. [2024-12-02 11:35:30,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-12-02 11:35:30,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.8) internal successors, (162), 13 states have internal predecessors, (162), 2 states have call successors, (89), 2 states have call predecessors, (89), 3 states have return successors, (89), 3 states have call predecessors, (89), 2 states have call successors, (89) Word has length 598 [2024-12-02 11:35:30,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:35:30,485 INFO L225 Difference]: With dead ends: 168854 [2024-12-02 11:35:30,485 INFO L226 Difference]: Without dead ends: 97648 [2024-12-02 11:35:30,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=2159, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 11:35:30,536 INFO L435 NwaCegarLoop]: 1102 mSDtfsCounter, 3447 mSDsluCounter, 6056 mSDsCounter, 0 mSdLazyCounter, 4014 mSolverCounterSat, 1768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 5782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1768 IncrementalHoareTripleChecker+Valid, 4014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:35:30,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 7158 Invalid, 5782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1768 Valid, 4014 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-12-02 11:35:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97648 states.