./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem13_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem13_label22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5646bd4d96b8fcc9e551b79d403a795dc3f85c7ce3ca7ca69beb4234714a055 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:34:35,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:34:35,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:34:35,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:34:35,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:34:35,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:34:35,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:34:35,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:34:35,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:34:35,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:34:35,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:34:35,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:34:35,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:34:35,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:34:35,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:34:35,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:34:35,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:34:35,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:34:35,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:34:35,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:34:35,871 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:34:35,871 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:34:35,871 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:34:35,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:34:35,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:34:35,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:34:35,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:35,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:34:35,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:35,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:34:35,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:34:35,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:34:35,874 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_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5646bd4d96b8fcc9e551b79d403a795dc3f85c7ce3ca7ca69beb4234714a055 [2024-11-28 04:34:36,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:34:36,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:34:36,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:34:36,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:34:36,220 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:34:36,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem13_label22.c [2024-11-28 04:34:39,396 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/data/e4870dac4/6f33c61d855049e8989841e0570ce544/FLAG6789031c2 [2024-11-28 04:34:39,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:34:39,961 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/sv-benchmarks/c/eca-rers2012/Problem13_label22.c [2024-11-28 04:34:39,998 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/data/e4870dac4/6f33c61d855049e8989841e0570ce544/FLAG6789031c2 [2024-11-28 04:34:40,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/data/e4870dac4/6f33c61d855049e8989841e0570ce544 [2024-11-28 04:34:40,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:34:40,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:34:40,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:34:40,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:34:40,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:34:40,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:40" (1/1) ... [2024-11-28 04:34:40,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704836bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:40, skipping insertion in model container [2024-11-28 04:34:40,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:34:40" (1/1) ... [2024-11-28 04:34:40,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:34:40,432 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_bd30a90d-1805-4ec1-bcae-6af856820b5d/sv-benchmarks/c/eca-rers2012/Problem13_label22.c[4777,4790] [2024-11-28 04:34:41,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:34:41,498 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:34:41,532 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_bd30a90d-1805-4ec1-bcae-6af856820b5d/sv-benchmarks/c/eca-rers2012/Problem13_label22.c[4777,4790] [2024-11-28 04:34:42,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:34:42,282 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:34:42,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42 WrapperNode [2024-11-28 04:34:42,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:34:42,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:34:42,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:34:42,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:34:42,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:42,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,086 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-28 04:34:43,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:34:43,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:34:43,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:34:43,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:34:43,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,655 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:34:43,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:43,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:44,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:34:44,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:34:44,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:34:44,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:34:44,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (1/1) ... [2024-11-28 04:34:44,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:34:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:34:44,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:34:44,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:34:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:34:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:34:44,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:34:44,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:34:44,319 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:34:44,321 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:34:52,744 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-28 04:34:52,745 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:34:52,802 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:34:52,803 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:34:52,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:52 BoogieIcfgContainer [2024-11-28 04:34:52,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:34:52,811 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:34:52,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:34:52,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:34:52,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:34:40" (1/3) ... [2024-11-28 04:34:52,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39310732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:34:52, skipping insertion in model container [2024-11-28 04:34:52,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:34:42" (2/3) ... [2024-11-28 04:34:52,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39310732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:34:52, skipping insertion in model container [2024-11-28 04:34:52,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:34:52" (3/3) ... [2024-11-28 04:34:52,822 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem13_label22.c [2024-11-28 04:34:52,840 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:34:52,843 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem13_label22.c that has 1 procedures, 1098 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:34:52,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:34:52,989 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;@7b08c2da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:34:52,989 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:34:52,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:34:53,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:34:53,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:53,008 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:53,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:53,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:53,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1317301102, now seen corresponding path program 1 times [2024-11-28 04:34:53,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:53,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727114236] [2024-11-28 04:34:53,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:53,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:53,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:34:53,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:34:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:34:53,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727114236] [2024-11-28 04:34:53,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727114236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:34:53,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:34:53,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:34:53,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121480190] [2024-11-28 04:34:53,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:34:53,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:34:53,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:34:53,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:34:53,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:53,508 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:34:59,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:34:59,433 INFO L93 Difference]: Finished difference Result 3121 states and 5804 transitions. [2024-11-28 04:34:59,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:34:59,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-28 04:34:59,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:34:59,471 INFO L225 Difference]: With dead ends: 3121 [2024-11-28 04:34:59,472 INFO L226 Difference]: Without dead ends: 1944 [2024-11-28 04:34:59,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:34:59,489 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 957 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3124 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 3701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 3124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:34:59,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 575 Invalid, 3701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [577 Valid, 3124 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 04:34:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2024-11-28 04:34:59,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1873. [2024-11-28 04:34:59,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1873 states, 1872 states have (on average 1.7393162393162394) internal successors, (3256), 1872 states have internal predecessors, (3256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:34:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1873 states to 1873 states and 3256 transitions. [2024-11-28 04:34:59,650 INFO L78 Accepts]: Start accepts. Automaton has 1873 states and 3256 transitions. Word has length 32 [2024-11-28 04:34:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:34:59,653 INFO L471 AbstractCegarLoop]: Abstraction has 1873 states and 3256 transitions. [2024-11-28 04:34:59,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:34:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 3256 transitions. [2024-11-28 04:34:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:34:59,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:34:59,658 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:34:59,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:34:59,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:34:59,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:34:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1153859322, now seen corresponding path program 1 times [2024-11-28 04:34:59,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:34:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165950467] [2024-11-28 04:34:59,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:34:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:34:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:00,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:00,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165950467] [2024-11-28 04:35:00,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165950467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:00,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:00,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:35:00,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100307285] [2024-11-28 04:35:00,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:00,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:00,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:00,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:00,131 INFO L87 Difference]: Start difference. First operand 1873 states and 3256 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:05,445 INFO L93 Difference]: Finished difference Result 5351 states and 9369 transitions. [2024-11-28 04:35:05,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:05,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-28 04:35:05,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:05,460 INFO L225 Difference]: With dead ends: 5351 [2024-11-28 04:35:05,461 INFO L226 Difference]: Without dead ends: 3480 [2024-11-28 04:35:05,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:05,467 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 884 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2338 mSolverCounterSat, 878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 2338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:05,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1079 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [878 Valid, 2338 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 04:35:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2024-11-28 04:35:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3479. [2024-11-28 04:35:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3478 states have (on average 1.518688901667625) internal successors, (5282), 3478 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:05,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 5282 transitions. [2024-11-28 04:35:05,571 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 5282 transitions. Word has length 97 [2024-11-28 04:35:05,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:05,571 INFO L471 AbstractCegarLoop]: Abstraction has 3479 states and 5282 transitions. [2024-11-28 04:35:05,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:05,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 5282 transitions. [2024-11-28 04:35:05,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 04:35:05,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:05,574 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:05,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:35:05,574 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:05,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:05,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1724311179, now seen corresponding path program 1 times [2024-11-28 04:35:05,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:05,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761834360] [2024-11-28 04:35:05,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:05,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:05,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:05,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761834360] [2024-11-28 04:35:05,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761834360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:05,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:05,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:35:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82139290] [2024-11-28 04:35:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:05,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:05,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:05,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:05,848 INFO L87 Difference]: Start difference. First operand 3479 states and 5282 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:10,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:10,120 INFO L93 Difference]: Finished difference Result 10142 states and 15438 transitions. [2024-11-28 04:35:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2024-11-28 04:35:10,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:10,146 INFO L225 Difference]: With dead ends: 10142 [2024-11-28 04:35:10,147 INFO L226 Difference]: Without dead ends: 6665 [2024-11-28 04:35:10,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:10,153 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 976 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:10,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 877 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:35:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2024-11-28 04:35:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6657. [2024-11-28 04:35:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6656 states have (on average 1.3728966346153846) internal successors, (9138), 6656 states have internal predecessors, (9138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 9138 transitions. [2024-11-28 04:35:10,289 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 9138 transitions. Word has length 99 [2024-11-28 04:35:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:10,291 INFO L471 AbstractCegarLoop]: Abstraction has 6657 states and 9138 transitions. [2024-11-28 04:35:10,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:10,291 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 9138 transitions. [2024-11-28 04:35:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 04:35:10,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:10,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:10,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:35:10,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 40058662, now seen corresponding path program 1 times [2024-11-28 04:35:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228614160] [2024-11-28 04:35:10,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:10,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:10,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228614160] [2024-11-28 04:35:10,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228614160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:10,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:10,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:35:10,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806029037] [2024-11-28 04:35:10,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:10,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:10,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:10,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:10,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:10,553 INFO L87 Difference]: Start difference. First operand 6657 states and 9138 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:14,971 INFO L93 Difference]: Finished difference Result 19637 states and 26969 transitions. [2024-11-28 04:35:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:14,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-28 04:35:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:15,008 INFO L225 Difference]: With dead ends: 19637 [2024-11-28 04:35:15,009 INFO L226 Difference]: Without dead ends: 12982 [2024-11-28 04:35:15,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:15,019 INFO L435 NwaCegarLoop]: 1012 mSDtfsCounter, 792 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 792 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:15,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1162 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [792 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:35:15,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12982 states. [2024-11-28 04:35:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12982 to 12964. [2024-11-28 04:35:15,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12964 states, 12963 states have (on average 1.2390650312427678) internal successors, (16062), 12963 states have internal predecessors, (16062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12964 states to 12964 states and 16062 transitions. [2024-11-28 04:35:15,320 INFO L78 Accepts]: Start accepts. Automaton has 12964 states and 16062 transitions. Word has length 105 [2024-11-28 04:35:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:15,322 INFO L471 AbstractCegarLoop]: Abstraction has 12964 states and 16062 transitions. [2024-11-28 04:35:15,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 12964 states and 16062 transitions. [2024-11-28 04:35:15,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 04:35:15,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:15,327 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:15,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:35:15,327 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:15,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:15,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1375773890, now seen corresponding path program 1 times [2024-11-28 04:35:15,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:15,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7536376] [2024-11-28 04:35:15,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:15,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:15,560 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:15,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:15,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7536376] [2024-11-28 04:35:15,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7536376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:15,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:15,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:15,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432239507] [2024-11-28 04:35:15,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:15,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:15,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:15,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:15,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:15,565 INFO L87 Difference]: Start difference. First operand 12964 states and 16062 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:20,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:20,706 INFO L93 Difference]: Finished difference Result 32235 states and 40792 transitions. [2024-11-28 04:35:20,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:20,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2024-11-28 04:35:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:20,756 INFO L225 Difference]: With dead ends: 32235 [2024-11-28 04:35:20,757 INFO L226 Difference]: Without dead ends: 19273 [2024-11-28 04:35:20,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:20,770 INFO L435 NwaCegarLoop]: 1590 mSDtfsCounter, 965 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:20,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 1688 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:35:20,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19273 states. [2024-11-28 04:35:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19273 to 19263. [2024-11-28 04:35:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19263 states, 19262 states have (on average 1.2407849652164884) internal successors, (23900), 19262 states have internal predecessors, (23900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19263 states to 19263 states and 23900 transitions. [2024-11-28 04:35:21,131 INFO L78 Accepts]: Start accepts. Automaton has 19263 states and 23900 transitions. Word has length 121 [2024-11-28 04:35:21,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:21,131 INFO L471 AbstractCegarLoop]: Abstraction has 19263 states and 23900 transitions. [2024-11-28 04:35:21,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:21,134 INFO L276 IsEmpty]: Start isEmpty. Operand 19263 states and 23900 transitions. [2024-11-28 04:35:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 04:35:21,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:21,138 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:21,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:35:21,138 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:21,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1196887405, now seen corresponding path program 1 times [2024-11-28 04:35:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:21,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953301126] [2024-11-28 04:35:21,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:21,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:21,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:21,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953301126] [2024-11-28 04:35:21,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953301126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:21,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:21,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:21,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991845171] [2024-11-28 04:35:21,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:21,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:21,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:21,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:21,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:21,402 INFO L87 Difference]: Start difference. First operand 19263 states and 23900 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:25,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:25,668 INFO L93 Difference]: Finished difference Result 38542 states and 47831 transitions. [2024-11-28 04:35:25,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:25,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-28 04:35:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:25,718 INFO L225 Difference]: With dead ends: 38542 [2024-11-28 04:35:25,719 INFO L226 Difference]: Without dead ends: 19281 [2024-11-28 04:35:25,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:25,739 INFO L435 NwaCegarLoop]: 1306 mSDtfsCounter, 1092 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 2468 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 2468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:25,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1359 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [616 Valid, 2468 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:35:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2024-11-28 04:35:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 19263. [2024-11-28 04:35:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19263 states, 19262 states have (on average 1.225262174229052) internal successors, (23601), 19262 states have internal predecessors, (23601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19263 states to 19263 states and 23601 transitions. [2024-11-28 04:35:26,024 INFO L78 Accepts]: Start accepts. Automaton has 19263 states and 23601 transitions. Word has length 128 [2024-11-28 04:35:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:26,025 INFO L471 AbstractCegarLoop]: Abstraction has 19263 states and 23601 transitions. [2024-11-28 04:35:26,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:26,025 INFO L276 IsEmpty]: Start isEmpty. Operand 19263 states and 23601 transitions. [2024-11-28 04:35:26,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 04:35:26,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:26,031 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:26,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:35:26,032 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:26,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:26,033 INFO L85 PathProgramCache]: Analyzing trace with hash 401334377, now seen corresponding path program 1 times [2024-11-28 04:35:26,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:26,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20802272] [2024-11-28 04:35:26,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:26,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:26,978 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:35:26,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:26,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20802272] [2024-11-28 04:35:26,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20802272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:26,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:26,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:35:26,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475716546] [2024-11-28 04:35:26,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:26,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:26,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:26,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:26,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:26,985 INFO L87 Difference]: Start difference. First operand 19263 states and 23601 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:31,484 INFO L93 Difference]: Finished difference Result 39311 states and 48002 transitions. [2024-11-28 04:35:31,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:31,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2024-11-28 04:35:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:31,536 INFO L225 Difference]: With dead ends: 39311 [2024-11-28 04:35:31,537 INFO L226 Difference]: Without dead ends: 20050 [2024-11-28 04:35:31,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:31,555 INFO L435 NwaCegarLoop]: 1077 mSDtfsCounter, 700 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:31,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 1206 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:35:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20050 states. [2024-11-28 04:35:31,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20050 to 20050. [2024-11-28 04:35:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20050 states, 20049 states have (on average 1.2166691605566362) internal successors, (24393), 20049 states have internal predecessors, (24393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:31,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20050 states to 20050 states and 24393 transitions. [2024-11-28 04:35:31,989 INFO L78 Accepts]: Start accepts. Automaton has 20050 states and 24393 transitions. Word has length 203 [2024-11-28 04:35:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:31,990 INFO L471 AbstractCegarLoop]: Abstraction has 20050 states and 24393 transitions. [2024-11-28 04:35:31,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 2 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:31,990 INFO L276 IsEmpty]: Start isEmpty. Operand 20050 states and 24393 transitions. [2024-11-28 04:35:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-28 04:35:31,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:31,998 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:31,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:35:31,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:31,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:31,999 INFO L85 PathProgramCache]: Analyzing trace with hash 199558270, now seen corresponding path program 1 times [2024-11-28 04:35:31,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:31,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883928346] [2024-11-28 04:35:32,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:32,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:35:32,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:32,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883928346] [2024-11-28 04:35:32,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883928346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:32,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:32,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:32,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432292095] [2024-11-28 04:35:32,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:32,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:32,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:32,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:32,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:32,305 INFO L87 Difference]: Start difference. First operand 20050 states and 24393 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:37,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:37,562 INFO L93 Difference]: Finished difference Result 39321 states and 48009 transitions. [2024-11-28 04:35:37,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:37,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2024-11-28 04:35:37,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:37,621 INFO L225 Difference]: With dead ends: 39321 [2024-11-28 04:35:37,621 INFO L226 Difference]: Without dead ends: 20060 [2024-11-28 04:35:37,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:37,636 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 887 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:37,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 928 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:35:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20060 states. [2024-11-28 04:35:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20060 to 20050. [2024-11-28 04:35:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20050 states, 20049 states have (on average 1.1535737443264003) internal successors, (23128), 20049 states have internal predecessors, (23128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20050 states to 20050 states and 23128 transitions. [2024-11-28 04:35:37,933 INFO L78 Accepts]: Start accepts. Automaton has 20050 states and 23128 transitions. Word has length 210 [2024-11-28 04:35:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:37,933 INFO L471 AbstractCegarLoop]: Abstraction has 20050 states and 23128 transitions. [2024-11-28 04:35:37,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:37,934 INFO L276 IsEmpty]: Start isEmpty. Operand 20050 states and 23128 transitions. [2024-11-28 04:35:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-28 04:35:37,944 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:37,944 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:37,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:35:37,945 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:37,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1013398472, now seen corresponding path program 1 times [2024-11-28 04:35:37,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:37,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472211122] [2024-11-28 04:35:37,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:37,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:38,315 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:35:38,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:38,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472211122] [2024-11-28 04:35:38,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472211122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:38,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:38,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:38,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683644700] [2024-11-28 04:35:38,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:38,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:38,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:38,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:38,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:38,322 INFO L87 Difference]: Start difference. First operand 20050 states and 23128 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:43,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:43,371 INFO L93 Difference]: Finished difference Result 45630 states and 53337 transitions. [2024-11-28 04:35:43,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:43,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2024-11-28 04:35:43,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:43,407 INFO L225 Difference]: With dead ends: 45630 [2024-11-28 04:35:43,408 INFO L226 Difference]: Without dead ends: 26369 [2024-11-28 04:35:43,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:43,423 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 968 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:43,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 786 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-28 04:35:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26369 states. [2024-11-28 04:35:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26369 to 26357. [2024-11-28 04:35:43,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26357 states, 26356 states have (on average 1.145204128092275) internal successors, (30183), 26356 states have internal predecessors, (30183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:43,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26357 states to 26357 states and 30183 transitions. [2024-11-28 04:35:43,857 INFO L78 Accepts]: Start accepts. Automaton has 26357 states and 30183 transitions. Word has length 299 [2024-11-28 04:35:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:43,859 INFO L471 AbstractCegarLoop]: Abstraction has 26357 states and 30183 transitions. [2024-11-28 04:35:43,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 26357 states and 30183 transitions. [2024-11-28 04:35:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-28 04:35:43,867 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:43,868 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:43,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:35:43,868 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:43,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:43,873 INFO L85 PathProgramCache]: Analyzing trace with hash 466056108, now seen corresponding path program 1 times [2024-11-28 04:35:43,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:43,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427790847] [2024-11-28 04:35:43,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:43,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-28 04:35:44,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:44,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427790847] [2024-11-28 04:35:44,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427790847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:44,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:44,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:35:44,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143430077] [2024-11-28 04:35:44,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:44,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:44,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:44,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:44,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:44,416 INFO L87 Difference]: Start difference. First operand 26357 states and 30183 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:49,221 INFO L93 Difference]: Finished difference Result 61387 states and 70044 transitions. [2024-11-28 04:35:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:49,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 351 [2024-11-28 04:35:49,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:49,260 INFO L225 Difference]: With dead ends: 61387 [2024-11-28 04:35:49,260 INFO L226 Difference]: Without dead ends: 35819 [2024-11-28 04:35:49,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:49,279 INFO L435 NwaCegarLoop]: 1041 mSDtfsCounter, 726 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 2907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:49,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1223 Invalid, 2907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 2726 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 04:35:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35819 states. [2024-11-28 04:35:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35819 to 35811. [2024-11-28 04:35:49,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35811 states, 35810 states have (on average 1.1199385646467468) internal successors, (40105), 35810 states have internal predecessors, (40105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35811 states to 35811 states and 40105 transitions. [2024-11-28 04:35:49,882 INFO L78 Accepts]: Start accepts. Automaton has 35811 states and 40105 transitions. Word has length 351 [2024-11-28 04:35:49,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:49,883 INFO L471 AbstractCegarLoop]: Abstraction has 35811 states and 40105 transitions. [2024-11-28 04:35:49,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:49,883 INFO L276 IsEmpty]: Start isEmpty. Operand 35811 states and 40105 transitions. [2024-11-28 04:35:49,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-28 04:35:49,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:49,893 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:49,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:35:49,895 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:49,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:49,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1671520665, now seen corresponding path program 1 times [2024-11-28 04:35:49,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:49,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339195054] [2024-11-28 04:35:49,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:49,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 119 proven. 75 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:35:51,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:51,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339195054] [2024-11-28 04:35:51,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339195054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:35:51,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725986000] [2024-11-28 04:35:51,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:51,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:35:51,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:35:51,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:35:51,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:35:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:51,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:35:51,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:35:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-28 04:35:52,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:35:52,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725986000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:52,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:35:52,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-28 04:35:52,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210349032] [2024-11-28 04:35:52,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:52,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:52,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:52,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:52,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:35:52,207 INFO L87 Difference]: Start difference. First operand 35811 states and 40105 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:35:57,568 INFO L93 Difference]: Finished difference Result 101690 states and 114343 transitions. [2024-11-28 04:35:57,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:35:57,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-28 04:35:57,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:35:57,629 INFO L225 Difference]: With dead ends: 101690 [2024-11-28 04:35:57,629 INFO L226 Difference]: Without dead ends: 66668 [2024-11-28 04:35:57,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:35:57,656 INFO L435 NwaCegarLoop]: 933 mSDtfsCounter, 1045 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 2717 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 3250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 2717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:35:57,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1141 Invalid, 3250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 2717 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 04:35:57,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66668 states. [2024-11-28 04:35:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66668 to 66647. [2024-11-28 04:35:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66647 states, 66646 states have (on average 1.1020466344566815) internal successors, (73447), 66646 states have internal predecessors, (73447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66647 states to 66647 states and 73447 transitions. [2024-11-28 04:35:59,003 INFO L78 Accepts]: Start accepts. Automaton has 66647 states and 73447 transitions. Word has length 359 [2024-11-28 04:35:59,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:35:59,004 INFO L471 AbstractCegarLoop]: Abstraction has 66647 states and 73447 transitions. [2024-11-28 04:35:59,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:35:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 66647 states and 73447 transitions. [2024-11-28 04:35:59,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-28 04:35:59,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:35:59,017 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:35:59,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:35:59,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 04:35:59,218 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:35:59,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:35:59,221 INFO L85 PathProgramCache]: Analyzing trace with hash -223688760, now seen corresponding path program 1 times [2024-11-28 04:35:59,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:35:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954654350] [2024-11-28 04:35:59,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:35:59,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:35:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:35:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 04:35:59,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:35:59,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954654350] [2024-11-28 04:35:59,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954654350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:35:59,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:35:59,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:35:59,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556347829] [2024-11-28 04:35:59,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:35:59,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:35:59,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:35:59,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:35:59,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:35:59,677 INFO L87 Difference]: Start difference. First operand 66647 states and 73447 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:05,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:05,560 INFO L93 Difference]: Finished difference Result 128406 states and 141788 transitions. [2024-11-28 04:36:05,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-28 04:36:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:05,634 INFO L225 Difference]: With dead ends: 128406 [2024-11-28 04:36:05,635 INFO L226 Difference]: Without dead ends: 61761 [2024-11-28 04:36:05,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:05,667 INFO L435 NwaCegarLoop]: 1491 mSDtfsCounter, 1085 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:05,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 1628 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-28 04:36:05,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61761 states. [2024-11-28 04:36:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61761 to 56242. [2024-11-28 04:36:06,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56242 states, 56241 states have (on average 1.0810618587862948) internal successors, (60800), 56241 states have internal predecessors, (60800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56242 states to 56242 states and 60800 transitions. [2024-11-28 04:36:06,600 INFO L78 Accepts]: Start accepts. Automaton has 56242 states and 60800 transitions. Word has length 359 [2024-11-28 04:36:06,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:06,600 INFO L471 AbstractCegarLoop]: Abstraction has 56242 states and 60800 transitions. [2024-11-28 04:36:06,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:06,601 INFO L276 IsEmpty]: Start isEmpty. Operand 56242 states and 60800 transitions. [2024-11-28 04:36:06,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2024-11-28 04:36:06,607 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:06,608 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:06,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:36:06,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:06,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:06,609 INFO L85 PathProgramCache]: Analyzing trace with hash -122794750, now seen corresponding path program 1 times [2024-11-28 04:36:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895081268] [2024-11-28 04:36:06,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:06,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:09,223 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 272 proven. 113 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:36:09,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:09,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895081268] [2024-11-28 04:36:09,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895081268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:36:09,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995835042] [2024-11-28 04:36:09,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:09,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:36:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:36:09,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:36:09,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:36:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:09,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:36:09,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:36:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 302 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:36:09,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:36:09,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995835042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:09,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:36:09,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-28 04:36:09,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231176002] [2024-11-28 04:36:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:09,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:09,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:09,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:09,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:09,689 INFO L87 Difference]: Start difference. First operand 56242 states and 60800 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:14,661 INFO L93 Difference]: Finished difference Result 111676 states and 121615 transitions. [2024-11-28 04:36:14,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:14,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2024-11-28 04:36:14,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:14,716 INFO L225 Difference]: With dead ends: 111676 [2024-11-28 04:36:14,716 INFO L226 Difference]: Without dead ends: 66462 [2024-11-28 04:36:14,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:36:14,736 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1217 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:14,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 404 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:36:14,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66462 states. [2024-11-28 04:36:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66462 to 66462. [2024-11-28 04:36:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66462 states, 66461 states have (on average 1.0791892989873761) internal successors, (71724), 66461 states have internal predecessors, (71724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:15,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66462 states to 66462 states and 71724 transitions. [2024-11-28 04:36:15,672 INFO L78 Accepts]: Start accepts. Automaton has 66462 states and 71724 transitions. Word has length 380 [2024-11-28 04:36:15,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:15,672 INFO L471 AbstractCegarLoop]: Abstraction has 66462 states and 71724 transitions. [2024-11-28 04:36:15,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:15,673 INFO L276 IsEmpty]: Start isEmpty. Operand 66462 states and 71724 transitions. [2024-11-28 04:36:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 04:36:15,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:15,679 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:15,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:36:15,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:36:15,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:15,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:15,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1998945486, now seen corresponding path program 1 times [2024-11-28 04:36:15,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:15,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409711770] [2024-11-28 04:36:15,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:15,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:16,203 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 04:36:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:16,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409711770] [2024-11-28 04:36:16,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409711770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:16,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:16,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:16,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569487072] [2024-11-28 04:36:16,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:16,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:16,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:16,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:16,206 INFO L87 Difference]: Start difference. First operand 66462 states and 71724 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:20,976 INFO L93 Difference]: Finished difference Result 144731 states and 156792 transitions. [2024-11-28 04:36:20,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:20,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 04:36:20,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:21,047 INFO L225 Difference]: With dead ends: 144731 [2024-11-28 04:36:21,047 INFO L226 Difference]: Without dead ends: 79058 [2024-11-28 04:36:21,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:21,070 INFO L435 NwaCegarLoop]: 1750 mSDtfsCounter, 788 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2485 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 2485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:21,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1890 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 2485 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 04:36:21,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79058 states. [2024-11-28 04:36:21,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79058 to 78265. [2024-11-28 04:36:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78265 states, 78264 states have (on average 1.0746959010528467) internal successors, (84110), 78264 states have internal predecessors, (84110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:21,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78265 states to 78265 states and 84110 transitions. [2024-11-28 04:36:21,906 INFO L78 Accepts]: Start accepts. Automaton has 78265 states and 84110 transitions. Word has length 389 [2024-11-28 04:36:21,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:21,906 INFO L471 AbstractCegarLoop]: Abstraction has 78265 states and 84110 transitions. [2024-11-28 04:36:21,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:21,906 INFO L276 IsEmpty]: Start isEmpty. Operand 78265 states and 84110 transitions. [2024-11-28 04:36:21,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-28 04:36:21,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:21,910 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:21,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:36:21,910 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:21,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:21,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1737086632, now seen corresponding path program 1 times [2024-11-28 04:36:21,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:21,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24239202] [2024-11-28 04:36:21,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:21,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-28 04:36:22,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:22,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24239202] [2024-11-28 04:36:22,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24239202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:22,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:22,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514266454] [2024-11-28 04:36:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:22,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:36:22,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:22,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:36:22,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:36:22,563 INFO L87 Difference]: Start difference. First operand 78265 states and 84110 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:32,432 INFO L93 Difference]: Finished difference Result 213352 states and 229648 transitions. [2024-11-28 04:36:32,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:36:32,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2024-11-28 04:36:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:32,563 INFO L225 Difference]: With dead ends: 213352 [2024-11-28 04:36:32,564 INFO L226 Difference]: Without dead ends: 135876 [2024-11-28 04:36:32,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:36:32,590 INFO L435 NwaCegarLoop]: 659 mSDtfsCounter, 1679 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 5866 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 6829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 5866 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:32,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 838 Invalid, 6829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [963 Valid, 5866 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-28 04:36:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135876 states. [2024-11-28 04:36:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135876 to 132622. [2024-11-28 04:36:34,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132622 states, 132621 states have (on average 1.071723181095) internal successors, (142133), 132621 states have internal predecessors, (142133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:34,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132622 states to 132622 states and 142133 transitions. [2024-11-28 04:36:34,380 INFO L78 Accepts]: Start accepts. Automaton has 132622 states and 142133 transitions. Word has length 394 [2024-11-28 04:36:34,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:34,380 INFO L471 AbstractCegarLoop]: Abstraction has 132622 states and 142133 transitions. [2024-11-28 04:36:34,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 132622 states and 142133 transitions. [2024-11-28 04:36:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-28 04:36:34,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:34,385 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:34,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:36:34,385 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1578591018, now seen corresponding path program 1 times [2024-11-28 04:36:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:34,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525201332] [2024-11-28 04:36:34,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:34,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:34,741 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 04:36:34,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:34,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525201332] [2024-11-28 04:36:34,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525201332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:34,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:34,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:34,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520663286] [2024-11-28 04:36:34,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:34,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:34,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:34,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:34,747 INFO L87 Difference]: Start difference. First operand 132622 states and 142133 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:40,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:40,557 INFO L93 Difference]: Finished difference Result 265235 states and 284216 transitions. [2024-11-28 04:36:40,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:40,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2024-11-28 04:36:40,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:40,721 INFO L225 Difference]: With dead ends: 265235 [2024-11-28 04:36:40,721 INFO L226 Difference]: Without dead ends: 131828 [2024-11-28 04:36:40,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:40,771 INFO L435 NwaCegarLoop]: 1665 mSDtfsCounter, 785 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:40,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 1796 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:36:40,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131828 states. [2024-11-28 04:36:42,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131828 to 131814. [2024-11-28 04:36:42,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131814 states, 131813 states have (on average 1.0560794458816658) internal successors, (139205), 131813 states have internal predecessors, (139205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:43,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131814 states to 131814 states and 139205 transitions. [2024-11-28 04:36:43,020 INFO L78 Accepts]: Start accepts. Automaton has 131814 states and 139205 transitions. Word has length 423 [2024-11-28 04:36:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:43,020 INFO L471 AbstractCegarLoop]: Abstraction has 131814 states and 139205 transitions. [2024-11-28 04:36:43,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 131814 states and 139205 transitions. [2024-11-28 04:36:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-28 04:36:43,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:43,025 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:43,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:36:43,025 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:43,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash -835118328, now seen corresponding path program 1 times [2024-11-28 04:36:43,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:43,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580580384] [2024-11-28 04:36:43,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:43,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 364 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 04:36:43,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:43,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580580384] [2024-11-28 04:36:43,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580580384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:43,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:43,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:36:43,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113541323] [2024-11-28 04:36:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:43,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:36:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:43,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:36:43,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:43,591 INFO L87 Difference]: Start difference. First operand 131814 states and 139205 transitions. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:48,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:36:48,199 INFO L93 Difference]: Finished difference Result 262050 states and 276714 transitions. [2024-11-28 04:36:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:36:48,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2024-11-28 04:36:48,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:36:48,403 INFO L225 Difference]: With dead ends: 262050 [2024-11-28 04:36:48,403 INFO L226 Difference]: Without dead ends: 131025 [2024-11-28 04:36:48,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:36:48,460 INFO L435 NwaCegarLoop]: 1312 mSDtfsCounter, 1097 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 2396 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 2396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:36:48,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1384 Invalid, 2826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 2396 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 04:36:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131025 states. [2024-11-28 04:36:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131025 to 131024. [2024-11-28 04:36:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131024 states, 131023 states have (on average 1.042435297619502) internal successors, (136583), 131023 states have internal predecessors, (136583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:50,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131024 states to 131024 states and 136583 transitions. [2024-11-28 04:36:50,666 INFO L78 Accepts]: Start accepts. Automaton has 131024 states and 136583 transitions. Word has length 430 [2024-11-28 04:36:50,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:36:50,666 INFO L471 AbstractCegarLoop]: Abstraction has 131024 states and 136583 transitions. [2024-11-28 04:36:50,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:36:50,667 INFO L276 IsEmpty]: Start isEmpty. Operand 131024 states and 136583 transitions. [2024-11-28 04:36:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-28 04:36:50,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:36:50,676 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:36:50,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:36:50,677 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:36:50,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:36:50,677 INFO L85 PathProgramCache]: Analyzing trace with hash -869792363, now seen corresponding path program 1 times [2024-11-28 04:36:50,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:36:50,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863331819] [2024-11-28 04:36:50,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:36:50,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:36:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:36:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2024-11-28 04:36:51,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:36:51,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863331819] [2024-11-28 04:36:51,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863331819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:36:51,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:36:51,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:36:51,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433096125] [2024-11-28 04:36:51,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:36:51,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:36:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:36:51,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:36:51,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:36:51,303 INFO L87 Difference]: Start difference. First operand 131024 states and 136583 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:01,361 INFO L93 Difference]: Finished difference Result 314093 states and 327567 transitions. [2024-11-28 04:37:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:37:01,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 463 [2024-11-28 04:37:01,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:01,588 INFO L225 Difference]: With dead ends: 314093 [2024-11-28 04:37:01,588 INFO L226 Difference]: Without dead ends: 183858 [2024-11-28 04:37:01,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:37:01,650 INFO L435 NwaCegarLoop]: 1445 mSDtfsCounter, 1734 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 7551 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 8283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 7551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:01,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 1675 Invalid, 8283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [732 Valid, 7551 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-28 04:37:01,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183858 states. [2024-11-28 04:37:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183858 to 173542. [2024-11-28 04:37:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173542 states, 173541 states have (on average 1.0422090457010158) internal successors, (180866), 173541 states have internal predecessors, (180866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173542 states to 173542 states and 180866 transitions. [2024-11-28 04:37:03,917 INFO L78 Accepts]: Start accepts. Automaton has 173542 states and 180866 transitions. Word has length 463 [2024-11-28 04:37:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:03,917 INFO L471 AbstractCegarLoop]: Abstraction has 173542 states and 180866 transitions. [2024-11-28 04:37:03,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 173542 states and 180866 transitions. [2024-11-28 04:37:03,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2024-11-28 04:37:03,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:03,926 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:03,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:37:03,926 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:03,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:03,927 INFO L85 PathProgramCache]: Analyzing trace with hash -636223155, now seen corresponding path program 1 times [2024-11-28 04:37:03,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:03,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360416603] [2024-11-28 04:37:03,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:03,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 300 proven. 110 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:37:05,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:05,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360416603] [2024-11-28 04:37:05,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360416603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:05,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115054821] [2024-11-28 04:37:05,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:05,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:05,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:05,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:05,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:37:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:06,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:37:06,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-11-28 04:37:06,324 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:37:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115054821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:06,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:06,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:37:06,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356859410] [2024-11-28 04:37:06,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:06,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:06,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:06,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:37:06,327 INFO L87 Difference]: Start difference. First operand 173542 states and 180866 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:12,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:37:12,429 INFO L93 Difference]: Finished difference Result 359664 states and 375611 transitions. [2024-11-28 04:37:12,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:37:12,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2024-11-28 04:37:12,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:37:12,667 INFO L225 Difference]: With dead ends: 359664 [2024-11-28 04:37:12,667 INFO L226 Difference]: Without dead ends: 203445 [2024-11-28 04:37:12,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:37:12,707 INFO L435 NwaCegarLoop]: 1667 mSDtfsCounter, 780 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:37:12,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1816 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:37:12,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203445 states. [2024-11-28 04:37:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203445 to 201871. [2024-11-28 04:37:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201871 states, 201870 states have (on average 1.0390845593698914) internal successors, (209760), 201870 states have internal predecessors, (209760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:15,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201871 states to 201871 states and 209760 transitions. [2024-11-28 04:37:15,397 INFO L78 Accepts]: Start accepts. Automaton has 201871 states and 209760 transitions. Word has length 495 [2024-11-28 04:37:15,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:37:15,397 INFO L471 AbstractCegarLoop]: Abstraction has 201871 states and 209760 transitions. [2024-11-28 04:37:15,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:37:15,398 INFO L276 IsEmpty]: Start isEmpty. Operand 201871 states and 209760 transitions. [2024-11-28 04:37:15,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2024-11-28 04:37:15,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:37:15,427 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:37:15,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:37:15,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:15,627 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:37:15,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:37:15,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1035074661, now seen corresponding path program 1 times [2024-11-28 04:37:15,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:37:15,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63775126] [2024-11-28 04:37:15,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:15,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:37:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 536 proven. 110 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-28 04:37:18,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:37:18,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63775126] [2024-11-28 04:37:18,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63775126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:37:18,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447401370] [2024-11-28 04:37:18,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:37:18,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:37:18,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:37:18,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:37:18,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd30a90d-1805-4ec1-bcae-6af856820b5d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:37:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:37:18,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:37:18,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:37:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 522 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-28 04:37:20,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:37:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447401370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:37:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:37:20,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-28 04:37:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770135798] [2024-11-28 04:37:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:37:20,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:37:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:37:20,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:37:20,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:37:20,195 INFO L87 Difference]: Start difference. First operand 201871 states and 209760 transitions. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 2 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)