./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX --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 afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:42:44,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:42:44,639 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:42:44,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:42:44,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:42:44,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:42:44,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:42:44,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:42:44,699 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:42:44,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:42:44,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:42:44,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:42:44,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:42:44,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:42:44,701 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:42:44,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:42:44,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:42:44,707 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:42:44,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:42:44,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:42:44,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:42:44,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:42:44,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:42:44,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:42:44,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:42:44,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:42:44,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:42:44,734 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:42:44,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:42:44,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:42:44,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:42:44,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:42:44,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:44,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:42:44,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:42:44,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:42:44,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:42:44,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:42:44,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:42:44,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:42:44,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:42:44,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:42:44,739 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afd688b49db4d2cf9e7e2109162780e9655a2ed2ed733e9c6c0c10bb8df3342c [2024-11-08 18:42:44,978 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:42:45,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:42:45,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:42:45,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:42:45,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:42:45,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c Unable to find full path for "g++" [2024-11-08 18:42:47,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:42:47,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:42:47,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-08 18:42:47,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/data/408cd8bd1/9f16779c0bf94e9fad393c9e1a5f86ae/FLAG805188f7c [2024-11-08 18:42:47,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/data/408cd8bd1/9f16779c0bf94e9fad393c9e1a5f86ae [2024-11-08 18:42:47,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:42:47,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:42:47,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:47,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:42:47,395 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:42:47,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:47" (1/1) ... [2024-11-08 18:42:47,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b93e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:47, skipping insertion in model container [2024-11-08 18:42:47,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:47" (1/1) ... [2024-11-08 18:42:47,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:42:47,821 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_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-08 18:42:47,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:47,956 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:42:48,058 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_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c[12887,12900] [2024-11-08 18:42:48,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:48,155 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:42:48,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48 WrapperNode [2024-11-08 18:42:48,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:48,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:48,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:42:48,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:42:48,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,260 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1463 [2024-11-08 18:42:48,260 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:48,261 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:42:48,261 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:42:48,261 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:42:48,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,327 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]. [2024-11-08 18:42:48,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:42:48,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:42:48,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:42:48,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:42:48,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (1/1) ... [2024-11-08 18:42:48,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:48,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:48,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:42:48,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cba79971-ac7f-489e-8a94-1ada4e1fa5e9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:42:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:42:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:42:48,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:42:48,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:42:48,659 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:42:48,661 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:42:50,094 INFO L? ?]: Removed 201 outVars from TransFormulas that were not future-live. [2024-11-08 18:42:50,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:42:50,129 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:42:50,129 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:42:50,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:50 BoogieIcfgContainer [2024-11-08 18:42:50,132 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:42:50,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:42:50,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:42:50,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:42:50,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:42:47" (1/3) ... [2024-11-08 18:42:50,139 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189fe736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:50, skipping insertion in model container [2024-11-08 18:42:50,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:48" (2/3) ... [2024-11-08 18:42:50,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189fe736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:50, skipping insertion in model container [2024-11-08 18:42:50,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:50" (3/3) ... [2024-11-08 18:42:50,141 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.p+lhb-reducer.c [2024-11-08 18:42:50,163 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:42:50,163 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:42:50,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:42:50,248 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;@6bd9966a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:42:50,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:42:50,254 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 423 states have internal predecessors, (693), 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) [2024-11-08 18:42:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 18:42:50,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:50,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:50,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:50,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:50,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1764715796, now seen corresponding path program 1 times [2024-11-08 18:42:50,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:50,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903334185] [2024-11-08 18:42:50,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:50,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:50,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:50,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903334185] [2024-11-08 18:42:50,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903334185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:50,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:50,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:42:50,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137516713] [2024-11-08 18:42:50,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:50,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:42:50,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:51,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:42:51,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:42:51,015 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 423 states have internal predecessors, (693), 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 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:51,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:51,222 INFO L93 Difference]: Finished difference Result 823 states and 1337 transitions. [2024-11-08 18:42:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:42:51,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2024-11-08 18:42:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:51,245 INFO L225 Difference]: With dead ends: 823 [2024-11-08 18:42:51,245 INFO L226 Difference]: Without dead ends: 421 [2024-11-08 18:42:51,250 INFO L431 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 [2024-11-08 18:42:51,254 INFO L432 NwaCegarLoop]: 688 mSDtfsCounter, 125 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:51,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1896 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:51,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-08 18:42:51,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-08 18:42:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.561904761904762) internal successors, (656), 420 states have internal predecessors, (656), 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) [2024-11-08 18:42:51,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 656 transitions. [2024-11-08 18:42:51,330 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 656 transitions. Word has length 107 [2024-11-08 18:42:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:51,332 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 656 transitions. [2024-11-08 18:42:51,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:42:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 656 transitions. [2024-11-08 18:42:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 18:42:51,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:51,344 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:51,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:42:51,345 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:51,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:51,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1708138426, now seen corresponding path program 1 times [2024-11-08 18:42:51,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:51,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434906743] [2024-11-08 18:42:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:51,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:51,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:51,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434906743] [2024-11-08 18:42:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434906743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:51,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:51,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:51,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717545887] [2024-11-08 18:42:51,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:51,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:51,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:51,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:51,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:51,573 INFO L87 Difference]: Start difference. First operand 421 states and 656 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-08 18:42:51,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:51,648 INFO L93 Difference]: Finished difference Result 1045 states and 1651 transitions. [2024-11-08 18:42:51,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:51,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2024-11-08 18:42:51,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:51,654 INFO L225 Difference]: With dead ends: 1045 [2024-11-08 18:42:51,654 INFO L226 Difference]: Without dead ends: 665 [2024-11-08 18:42:51,657 INFO L431 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 [2024-11-08 18:42:51,658 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 473 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:51,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 1362 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:51,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-08 18:42:51,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-08 18:42:51,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.56797583081571) internal successors, (1038), 662 states have internal predecessors, (1038), 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) [2024-11-08 18:42:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1038 transitions. [2024-11-08 18:42:51,689 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1038 transitions. Word has length 130 [2024-11-08 18:42:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:51,689 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1038 transitions. [2024-11-08 18:42:51,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-08 18:42:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1038 transitions. [2024-11-08 18:42:51,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 18:42:51,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:51,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:51,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:42:51,693 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:51,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash 2058824093, now seen corresponding path program 1 times [2024-11-08 18:42:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:51,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707230492] [2024-11-08 18:42:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:51,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:51,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:51,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:51,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707230492] [2024-11-08 18:42:51,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707230492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:51,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:51,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:51,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037900859] [2024-11-08 18:42:51,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:51,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:51,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:51,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:51,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:51,903 INFO L87 Difference]: Start difference. First operand 663 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-08 18:42:51,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:51,972 INFO L93 Difference]: Finished difference Result 1679 states and 2652 transitions. [2024-11-08 18:42:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2024-11-08 18:42:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:51,977 INFO L225 Difference]: With dead ends: 1679 [2024-11-08 18:42:51,977 INFO L226 Difference]: Without dead ends: 1070 [2024-11-08 18:42:51,978 INFO L431 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 [2024-11-08 18:42:51,979 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 459 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:51,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1131 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-11-08 18:42:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2024-11-08 18:42:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.5679475164011247) internal successors, (1673), 1067 states have internal predecessors, (1673), 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) [2024-11-08 18:42:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1673 transitions. [2024-11-08 18:42:52,017 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1673 transitions. Word has length 133 [2024-11-08 18:42:52,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:52,017 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1673 transitions. [2024-11-08 18:42:52,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-08 18:42:52,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1673 transitions. [2024-11-08 18:42:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 18:42:52,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:52,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:52,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:42:52,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:52,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2046394113, now seen corresponding path program 1 times [2024-11-08 18:42:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:52,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288804769] [2024-11-08 18:42:52,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:52,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:52,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:52,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:52,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288804769] [2024-11-08 18:42:52,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288804769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:52,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:52,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:52,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443791066] [2024-11-08 18:42:52,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:52,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:52,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:52,174 INFO L87 Difference]: Start difference. First operand 1068 states and 1673 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2024-11-08 18:42:52,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:52,254 INFO L93 Difference]: Finished difference Result 2718 states and 4276 transitions. [2024-11-08 18:42:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:52,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2024-11-08 18:42:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:52,263 INFO L225 Difference]: With dead ends: 2718 [2024-11-08 18:42:52,263 INFO L226 Difference]: Without dead ends: 1717 [2024-11-08 18:42:52,266 INFO L431 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 [2024-11-08 18:42:52,267 INFO L432 NwaCegarLoop]: 760 mSDtfsCounter, 443 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:52,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1234 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-08 18:42:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1715. [2024-11-08 18:42:52,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 1.560676779463244) internal successors, (2675), 1714 states have internal predecessors, (2675), 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) [2024-11-08 18:42:52,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2675 transitions. [2024-11-08 18:42:52,305 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2675 transitions. Word has length 136 [2024-11-08 18:42:52,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:52,306 INFO L471 AbstractCegarLoop]: Abstraction has 1715 states and 2675 transitions. [2024-11-08 18:42:52,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2024-11-08 18:42:52,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2675 transitions. [2024-11-08 18:42:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:42:52,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:52,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:52,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:42:52,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:52,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1063364304, now seen corresponding path program 1 times [2024-11-08 18:42:52,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:52,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564869666] [2024-11-08 18:42:52,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:52,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:52,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:52,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:52,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564869666] [2024-11-08 18:42:52,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564869666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:52,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:52,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:52,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349063635] [2024-11-08 18:42:52,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:52,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:52,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:52,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:52,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:52,474 INFO L87 Difference]: Start difference. First operand 1715 states and 2675 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-11-08 18:42:52,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:52,560 INFO L93 Difference]: Finished difference Result 4315 states and 6729 transitions. [2024-11-08 18:42:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:52,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 139 [2024-11-08 18:42:52,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:52,571 INFO L225 Difference]: With dead ends: 4315 [2024-11-08 18:42:52,571 INFO L226 Difference]: Without dead ends: 2680 [2024-11-08 18:42:52,573 INFO L431 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 [2024-11-08 18:42:52,577 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 428 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:52,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1170 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:42:52,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2024-11-08 18:42:52,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2678. [2024-11-08 18:42:52,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2678 states, 2677 states have (on average 1.5438924168845722) internal successors, (4133), 2677 states have internal predecessors, (4133), 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) [2024-11-08 18:42:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 4133 transitions. [2024-11-08 18:42:52,663 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 4133 transitions. Word has length 139 [2024-11-08 18:42:52,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:52,664 INFO L471 AbstractCegarLoop]: Abstraction has 2678 states and 4133 transitions. [2024-11-08 18:42:52,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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) [2024-11-08 18:42:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 4133 transitions. [2024-11-08 18:42:52,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 18:42:52,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:52,672 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:52,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:42:52,672 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:52,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:52,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1743940332, now seen corresponding path program 1 times [2024-11-08 18:42:52,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:52,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898023945] [2024-11-08 18:42:52,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:52,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:52,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:52,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:52,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898023945] [2024-11-08 18:42:52,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898023945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:52,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:52,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:42:52,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223351412] [2024-11-08 18:42:52,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:52,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:52,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:52,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:52,918 INFO L87 Difference]: Start difference. First operand 2678 states and 4133 transitions. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-08 18:42:53,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:53,340 INFO L93 Difference]: Finished difference Result 14017 states and 21619 transitions. [2024-11-08 18:42:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:53,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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 142 [2024-11-08 18:42:53,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:53,373 INFO L225 Difference]: With dead ends: 14017 [2024-11-08 18:42:53,374 INFO L226 Difference]: Without dead ends: 11423 [2024-11-08 18:42:53,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:42:53,383 INFO L432 NwaCegarLoop]: 777 mSDtfsCounter, 3458 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3458 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:53,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3458 Valid, 3344 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:42:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11423 states. [2024-11-08 18:42:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11423 to 5188. [2024-11-08 18:42:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5188 states, 5187 states have (on average 1.5211104684788894) internal successors, (7890), 5187 states have internal predecessors, (7890), 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) [2024-11-08 18:42:53,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 5188 states and 7890 transitions. [2024-11-08 18:42:53,587 INFO L78 Accepts]: Start accepts. Automaton has 5188 states and 7890 transitions. Word has length 142 [2024-11-08 18:42:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:53,587 INFO L471 AbstractCegarLoop]: Abstraction has 5188 states and 7890 transitions. [2024-11-08 18:42:53,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-08 18:42:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 5188 states and 7890 transitions. [2024-11-08 18:42:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 18:42:53,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:53,600 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:53,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:42:53,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:53,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:53,601 INFO L85 PathProgramCache]: Analyzing trace with hash -444562950, now seen corresponding path program 1 times [2024-11-08 18:42:53,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136737005] [2024-11-08 18:42:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:53,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:53,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:53,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136737005] [2024-11-08 18:42:53,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136737005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:53,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:53,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:53,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983493088] [2024-11-08 18:42:53,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:53,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:53,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:53,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:53,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:53,770 INFO L87 Difference]: Start difference. First operand 5188 states and 7890 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:53,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:53,889 INFO L93 Difference]: Finished difference Result 14633 states and 22199 transitions. [2024-11-08 18:42:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:53,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 146 [2024-11-08 18:42:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:53,918 INFO L225 Difference]: With dead ends: 14633 [2024-11-08 18:42:53,918 INFO L226 Difference]: Without dead ends: 9675 [2024-11-08 18:42:53,924 INFO L431 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 [2024-11-08 18:42:53,925 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 466 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:53,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:53,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9675 states. [2024-11-08 18:42:54,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9675 to 9673. [2024-11-08 18:42:54,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9673 states, 9672 states have (on average 1.5039288668320927) internal successors, (14546), 9672 states have internal predecessors, (14546), 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) [2024-11-08 18:42:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9673 states to 9673 states and 14546 transitions. [2024-11-08 18:42:54,202 INFO L78 Accepts]: Start accepts. Automaton has 9673 states and 14546 transitions. Word has length 146 [2024-11-08 18:42:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:54,202 INFO L471 AbstractCegarLoop]: Abstraction has 9673 states and 14546 transitions. [2024-11-08 18:42:54,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 9673 states and 14546 transitions. [2024-11-08 18:42:54,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 18:42:54,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:54,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:54,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:42:54,221 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:54,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1034943005, now seen corresponding path program 1 times [2024-11-08 18:42:54,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:54,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869093215] [2024-11-08 18:42:54,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:54,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:54,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:54,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:54,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869093215] [2024-11-08 18:42:54,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869093215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:54,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:54,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:54,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146513852] [2024-11-08 18:42:54,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:54,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:54,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:54,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:54,364 INFO L87 Difference]: Start difference. First operand 9673 states and 14546 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:54,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:54,511 INFO L93 Difference]: Finished difference Result 26793 states and 40069 transitions. [2024-11-08 18:42:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:54,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 146 [2024-11-08 18:42:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:54,632 INFO L225 Difference]: With dead ends: 26793 [2024-11-08 18:42:54,632 INFO L226 Difference]: Without dead ends: 17840 [2024-11-08 18:42:54,652 INFO L431 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 [2024-11-08 18:42:54,654 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 448 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:54,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:54,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17840 states. [2024-11-08 18:42:55,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17840 to 17838. [2024-11-08 18:42:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17838 states, 17837 states have (on average 1.4804058978527779) internal successors, (26406), 17837 states have internal predecessors, (26406), 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) [2024-11-08 18:42:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17838 states to 17838 states and 26406 transitions. [2024-11-08 18:42:55,143 INFO L78 Accepts]: Start accepts. Automaton has 17838 states and 26406 transitions. Word has length 146 [2024-11-08 18:42:55,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:55,144 INFO L471 AbstractCegarLoop]: Abstraction has 17838 states and 26406 transitions. [2024-11-08 18:42:55,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 17838 states and 26406 transitions. [2024-11-08 18:42:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 18:42:55,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:55,173 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:55,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:42:55,174 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:55,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1198580260, now seen corresponding path program 1 times [2024-11-08 18:42:55,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689481089] [2024-11-08 18:42:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:55,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:55,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:55,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689481089] [2024-11-08 18:42:55,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689481089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:55,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:55,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:55,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998267762] [2024-11-08 18:42:55,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:55,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:55,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:55,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:55,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:55,308 INFO L87 Difference]: Start difference. First operand 17838 states and 26406 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:55,654 INFO L93 Difference]: Finished difference Result 50669 states and 74634 transitions. [2024-11-08 18:42:55,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:55,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 146 [2024-11-08 18:42:55,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:55,715 INFO L225 Difference]: With dead ends: 50669 [2024-11-08 18:42:55,716 INFO L226 Difference]: Without dead ends: 33147 [2024-11-08 18:42:55,735 INFO L431 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 [2024-11-08 18:42:55,735 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 485 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:55,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1159 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:55,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33147 states. [2024-11-08 18:42:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33147 to 33145. [2024-11-08 18:42:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33145 states, 33144 states have (on average 1.4571868211440986) internal successors, (48297), 33144 states have internal predecessors, (48297), 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) [2024-11-08 18:42:57,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33145 states to 33145 states and 48297 transitions. [2024-11-08 18:42:57,004 INFO L78 Accepts]: Start accepts. Automaton has 33145 states and 48297 transitions. Word has length 146 [2024-11-08 18:42:57,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:57,004 INFO L471 AbstractCegarLoop]: Abstraction has 33145 states and 48297 transitions. [2024-11-08 18:42:57,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:57,004 INFO L276 IsEmpty]: Start isEmpty. Operand 33145 states and 48297 transitions. [2024-11-08 18:42:57,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 18:42:57,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:57,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:57,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:42:57,053 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:57,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:57,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1220349594, now seen corresponding path program 1 times [2024-11-08 18:42:57,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:57,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642533903] [2024-11-08 18:42:57,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:57,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:57,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642533903] [2024-11-08 18:42:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642533903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:57,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:57,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:57,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702456185] [2024-11-08 18:42:57,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:57,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:57,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:57,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:57,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:57,167 INFO L87 Difference]: Start difference. First operand 33145 states and 48297 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:57,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:57,671 INFO L93 Difference]: Finished difference Result 93946 states and 136145 transitions. [2024-11-08 18:42:57,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:57,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 146 [2024-11-08 18:42:57,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:57,791 INFO L225 Difference]: With dead ends: 93946 [2024-11-08 18:42:57,791 INFO L226 Difference]: Without dead ends: 61068 [2024-11-08 18:42:57,819 INFO L431 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 [2024-11-08 18:42:57,820 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 503 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:57,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 1161 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:42:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61068 states. [2024-11-08 18:42:59,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61068 to 61066. [2024-11-08 18:42:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61066 states, 61065 states have (on average 1.4328338655530992) internal successors, (87496), 61065 states have internal predecessors, (87496), 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) [2024-11-08 18:42:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61066 states to 61066 states and 87496 transitions. [2024-11-08 18:42:59,301 INFO L78 Accepts]: Start accepts. Automaton has 61066 states and 87496 transitions. Word has length 146 [2024-11-08 18:42:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:59,301 INFO L471 AbstractCegarLoop]: Abstraction has 61066 states and 87496 transitions. [2024-11-08 18:42:59,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-08 18:42:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 61066 states and 87496 transitions. [2024-11-08 18:42:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 18:42:59,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:59,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:59,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:42:59,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:59,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:59,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1598822765, now seen corresponding path program 1 times [2024-11-08 18:42:59,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:59,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784656040] [2024-11-08 18:42:59,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:59,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784656040] [2024-11-08 18:43:00,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784656040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:00,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:00,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034102650] [2024-11-08 18:43:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:00,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:00,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:00,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:00,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:00,065 INFO L87 Difference]: Start difference. First operand 61066 states and 87496 transitions. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-11-08 18:43:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:00,809 INFO L93 Difference]: Finished difference Result 100179 states and 142155 transitions. [2024-11-08 18:43:00,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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 147 [2024-11-08 18:43:00,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:00,932 INFO L225 Difference]: With dead ends: 100179 [2024-11-08 18:43:00,933 INFO L226 Difference]: Without dead ends: 61272 [2024-11-08 18:43:00,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:00,962 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 2751 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2751 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:00,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2751 Valid, 2392 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:43:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61272 states. [2024-11-08 18:43:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61272 to 59628. [2024-11-08 18:43:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59628 states, 59627 states have (on average 1.4092273634427357) internal successors, (84028), 59627 states have internal predecessors, (84028), 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) [2024-11-08 18:43:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59628 states to 59628 states and 84028 transitions. [2024-11-08 18:43:02,807 INFO L78 Accepts]: Start accepts. Automaton has 59628 states and 84028 transitions. Word has length 147 [2024-11-08 18:43:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:02,808 INFO L471 AbstractCegarLoop]: Abstraction has 59628 states and 84028 transitions. [2024-11-08 18:43:02,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-11-08 18:43:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 59628 states and 84028 transitions. [2024-11-08 18:43:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-08 18:43:02,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:02,910 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:02,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:43:02,911 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:02,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:02,913 INFO L85 PathProgramCache]: Analyzing trace with hash -584926344, now seen corresponding path program 1 times [2024-11-08 18:43:02,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:02,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281207467] [2024-11-08 18:43:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:02,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:03,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:03,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281207467] [2024-11-08 18:43:03,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281207467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:03,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:03,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:03,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387334569] [2024-11-08 18:43:03,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:03,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:03,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:03,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:03,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:03,220 INFO L87 Difference]: Start difference. First operand 59628 states and 84028 transitions. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-08 18:43:04,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:04,247 INFO L93 Difference]: Finished difference Result 130711 states and 186578 transitions. [2024-11-08 18:43:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:04,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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 148 [2024-11-08 18:43:04,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:04,507 INFO L225 Difference]: With dead ends: 130711 [2024-11-08 18:43:04,507 INFO L226 Difference]: Without dead ends: 108324 [2024-11-08 18:43:04,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:04,550 INFO L432 NwaCegarLoop]: 1072 mSDtfsCounter, 2956 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:04,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 3790 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:43:04,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108324 states. [2024-11-08 18:43:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108324 to 81322. [2024-11-08 18:43:06,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81322 states, 81321 states have (on average 1.4089841492357447) internal successors, (114580), 81321 states have internal predecessors, (114580), 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) [2024-11-08 18:43:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81322 states to 81322 states and 114580 transitions. [2024-11-08 18:43:06,256 INFO L78 Accepts]: Start accepts. Automaton has 81322 states and 114580 transitions. Word has length 148 [2024-11-08 18:43:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:06,256 INFO L471 AbstractCegarLoop]: Abstraction has 81322 states and 114580 transitions. [2024-11-08 18:43:06,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-08 18:43:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 81322 states and 114580 transitions. [2024-11-08 18:43:06,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:43:06,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:06,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:06,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:43:06,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:06,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 81709173, now seen corresponding path program 1 times [2024-11-08 18:43:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:06,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757243718] [2024-11-08 18:43:06,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:06,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:06,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:06,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:06,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757243718] [2024-11-08 18:43:06,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757243718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:06,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:06,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:43:06,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524588868] [2024-11-08 18:43:06,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:06,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:06,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:06,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:06,917 INFO L87 Difference]: Start difference. First operand 81322 states and 114580 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-11-08 18:43:07,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:07,203 INFO L93 Difference]: Finished difference Result 108030 states and 151819 transitions. [2024-11-08 18:43:07,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:07,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2024-11-08 18:43:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:07,290 INFO L225 Difference]: With dead ends: 108030 [2024-11-08 18:43:07,290 INFO L226 Difference]: Without dead ends: 70504 [2024-11-08 18:43:07,327 INFO L431 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 [2024-11-08 18:43:07,328 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 486 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1460 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:07,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1460 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:07,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70504 states. [2024-11-08 18:43:08,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70504 to 70422. [2024-11-08 18:43:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70422 states, 70421 states have (on average 1.3959046307209497) internal successors, (98301), 70421 states have internal predecessors, (98301), 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) [2024-11-08 18:43:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70422 states to 70422 states and 98301 transitions. [2024-11-08 18:43:09,020 INFO L78 Accepts]: Start accepts. Automaton has 70422 states and 98301 transitions. Word has length 149 [2024-11-08 18:43:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:09,020 INFO L471 AbstractCegarLoop]: Abstraction has 70422 states and 98301 transitions. [2024-11-08 18:43:09,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-11-08 18:43:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 70422 states and 98301 transitions. [2024-11-08 18:43:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 18:43:09,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:09,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:09,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:43:09,094 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:09,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash 66548393, now seen corresponding path program 1 times [2024-11-08 18:43:09,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:09,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456546340] [2024-11-08 18:43:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:09,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:09,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456546340] [2024-11-08 18:43:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456546340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:09,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:09,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:09,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014423098] [2024-11-08 18:43:09,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:09,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:09,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:09,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:09,385 INFO L87 Difference]: Start difference. First operand 70422 states and 98301 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-11-08 18:43:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:09,989 INFO L93 Difference]: Finished difference Result 129277 states and 182532 transitions. [2024-11-08 18:43:09,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:09,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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 150 [2024-11-08 18:43:09,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:10,552 INFO L225 Difference]: With dead ends: 129277 [2024-11-08 18:43:10,552 INFO L226 Difference]: Without dead ends: 109408 [2024-11-08 18:43:10,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:10,575 INFO L432 NwaCegarLoop]: 1050 mSDtfsCounter, 2906 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:10,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 3383 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:43:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109408 states. [2024-11-08 18:43:12,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109408 to 89429. [2024-11-08 18:43:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89429 states, 89428 states have (on average 1.3961399114371338) internal successors, (124854), 89428 states have internal predecessors, (124854), 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) [2024-11-08 18:43:12,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89429 states to 89429 states and 124854 transitions. [2024-11-08 18:43:12,269 INFO L78 Accepts]: Start accepts. Automaton has 89429 states and 124854 transitions. Word has length 150 [2024-11-08 18:43:12,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:12,270 INFO L471 AbstractCegarLoop]: Abstraction has 89429 states and 124854 transitions. [2024-11-08 18:43:12,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-11-08 18:43:12,270 INFO L276 IsEmpty]: Start isEmpty. Operand 89429 states and 124854 transitions. [2024-11-08 18:43:12,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 18:43:12,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:12,356 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:12,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:43:12,357 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:12,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:12,357 INFO L85 PathProgramCache]: Analyzing trace with hash 603301209, now seen corresponding path program 1 times [2024-11-08 18:43:12,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:12,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811160367] [2024-11-08 18:43:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:12,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:12,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811160367] [2024-11-08 18:43:12,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811160367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:12,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:12,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:12,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508754515] [2024-11-08 18:43:12,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:12,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:12,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:12,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:12,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:12,700 INFO L87 Difference]: Start difference. First operand 89429 states and 124854 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-11-08 18:43:13,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:13,480 INFO L93 Difference]: Finished difference Result 142531 states and 200886 transitions. [2024-11-08 18:43:13,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:13,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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 150 [2024-11-08 18:43:13,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:14,098 INFO L225 Difference]: With dead ends: 142531 [2024-11-08 18:43:14,098 INFO L226 Difference]: Without dead ends: 126176 [2024-11-08 18:43:14,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:14,118 INFO L432 NwaCegarLoop]: 989 mSDtfsCounter, 3155 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:14,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 3276 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:43:14,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126176 states. [2024-11-08 18:43:15,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126176 to 104221. [2024-11-08 18:43:15,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104221 states, 104220 states have (on average 1.3965553636538093) internal successors, (145549), 104220 states have internal predecessors, (145549), 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) [2024-11-08 18:43:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104221 states to 104221 states and 145549 transitions. [2024-11-08 18:43:16,087 INFO L78 Accepts]: Start accepts. Automaton has 104221 states and 145549 transitions. Word has length 150 [2024-11-08 18:43:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:16,087 INFO L471 AbstractCegarLoop]: Abstraction has 104221 states and 145549 transitions. [2024-11-08 18:43:16,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 6 states have internal predecessors, (150), 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) [2024-11-08 18:43:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 104221 states and 145549 transitions. [2024-11-08 18:43:16,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:43:16,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:16,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:16,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:43:16,156 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:16,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash -469643206, now seen corresponding path program 1 times [2024-11-08 18:43:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:16,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746110959] [2024-11-08 18:43:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:16,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:16,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746110959] [2024-11-08 18:43:16,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746110959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:16,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:16,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:43:16,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190782149] [2024-11-08 18:43:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:16,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:16,292 INFO L87 Difference]: Start difference. First operand 104221 states and 145549 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-08 18:43:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:16,615 INFO L93 Difference]: Finished difference Result 138154 states and 192447 transitions. [2024-11-08 18:43:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:16,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2024-11-08 18:43:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:16,685 INFO L225 Difference]: With dead ends: 138154 [2024-11-08 18:43:16,685 INFO L226 Difference]: Without dead ends: 95865 [2024-11-08 18:43:16,714 INFO L431 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 [2024-11-08 18:43:16,715 INFO L432 NwaCegarLoop]: 1011 mSDtfsCounter, 442 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:16,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1558 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95865 states. [2024-11-08 18:43:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95865 to 95818. [2024-11-08 18:43:18,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95818 states, 95817 states have (on average 1.3831261675903024) internal successors, (132527), 95817 states have internal predecessors, (132527), 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) [2024-11-08 18:43:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95818 states to 95818 states and 132527 transitions. [2024-11-08 18:43:18,891 INFO L78 Accepts]: Start accepts. Automaton has 95818 states and 132527 transitions. Word has length 151 [2024-11-08 18:43:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:18,892 INFO L471 AbstractCegarLoop]: Abstraction has 95818 states and 132527 transitions. [2024-11-08 18:43:18,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-08 18:43:18,892 INFO L276 IsEmpty]: Start isEmpty. Operand 95818 states and 132527 transitions. [2024-11-08 18:43:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:43:18,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:18,976 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:18,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:43:18,976 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:18,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2010807688, now seen corresponding path program 1 times [2024-11-08 18:43:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357810531] [2024-11-08 18:43:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:19,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:19,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357810531] [2024-11-08 18:43:19,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357810531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:19,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:19,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:43:19,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908444206] [2024-11-08 18:43:19,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:19,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:43:19,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:19,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:43:19,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:43:19,105 INFO L87 Difference]: Start difference. First operand 95818 states and 132527 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-08 18:43:19,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:19,414 INFO L93 Difference]: Finished difference Result 116827 states and 161375 transitions. [2024-11-08 18:43:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:43:19,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2024-11-08 18:43:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:19,510 INFO L225 Difference]: With dead ends: 116827 [2024-11-08 18:43:19,510 INFO L226 Difference]: Without dead ends: 91039 [2024-11-08 18:43:19,541 INFO L431 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 [2024-11-08 18:43:19,542 INFO L432 NwaCegarLoop]: 1014 mSDtfsCounter, 399 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:19,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 1561 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:43:19,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91039 states. [2024-11-08 18:43:20,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91039 to 91037. [2024-11-08 18:43:20,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91037 states, 91036 states have (on average 1.3728524979129135) internal successors, (124979), 91036 states have internal predecessors, (124979), 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) [2024-11-08 18:43:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91037 states to 91037 states and 124979 transitions. [2024-11-08 18:43:21,008 INFO L78 Accepts]: Start accepts. Automaton has 91037 states and 124979 transitions. Word has length 151 [2024-11-08 18:43:21,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:21,009 INFO L471 AbstractCegarLoop]: Abstraction has 91037 states and 124979 transitions. [2024-11-08 18:43:21,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2024-11-08 18:43:21,009 INFO L276 IsEmpty]: Start isEmpty. Operand 91037 states and 124979 transitions. [2024-11-08 18:43:21,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-08 18:43:21,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:21,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:21,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:43:21,537 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:21,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:21,538 INFO L85 PathProgramCache]: Analyzing trace with hash 571889516, now seen corresponding path program 1 times [2024-11-08 18:43:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:21,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883941392] [2024-11-08 18:43:21,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:21,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:21,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:21,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:21,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883941392] [2024-11-08 18:43:21,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883941392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:21,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:21,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:43:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214147016] [2024-11-08 18:43:21,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:21,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:21,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:21,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:21,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:21,785 INFO L87 Difference]: Start difference. First operand 91037 states and 124979 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-11-08 18:43:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:22,312 INFO L93 Difference]: Finished difference Result 122036 states and 168423 transitions. [2024-11-08 18:43:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 152 [2024-11-08 18:43:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:22,447 INFO L225 Difference]: With dead ends: 122036 [2024-11-08 18:43:22,447 INFO L226 Difference]: Without dead ends: 110338 [2024-11-08 18:43:22,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:43:22,476 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 2894 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2894 SdHoareTripleChecker+Valid, 3701 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:22,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2894 Valid, 3701 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:43:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110338 states. [2024-11-08 18:43:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110338 to 101516. [2024-11-08 18:43:24,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101516 states, 101515 states have (on average 1.3717578682953258) internal successors, (139254), 101515 states have internal predecessors, (139254), 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) [2024-11-08 18:43:24,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101516 states to 101516 states and 139254 transitions. [2024-11-08 18:43:24,893 INFO L78 Accepts]: Start accepts. Automaton has 101516 states and 139254 transitions. Word has length 152 [2024-11-08 18:43:24,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:24,894 INFO L471 AbstractCegarLoop]: Abstraction has 101516 states and 139254 transitions. [2024-11-08 18:43:24,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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) [2024-11-08 18:43:24,894 INFO L276 IsEmpty]: Start isEmpty. Operand 101516 states and 139254 transitions. [2024-11-08 18:43:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 18:43:24,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:43:24,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:24,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:43:24,961 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:43:24,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash 109223062, now seen corresponding path program 1 times [2024-11-08 18:43:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:24,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008608444] [2024-11-08 18:43:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:25,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:25,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008608444] [2024-11-08 18:43:25,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008608444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:25,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:25,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:43:25,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426373816] [2024-11-08 18:43:25,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:25,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:43:25,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:25,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:43:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:43:25,186 INFO L87 Difference]: Start difference. First operand 101516 states and 139254 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-11-08 18:43:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:43:26,395 INFO L93 Difference]: Finished difference Result 288461 states and 395411 transitions. [2024-11-08 18:43:26,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:43:26,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 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 153 [2024-11-08 18:43:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:43:26,558 INFO L225 Difference]: With dead ends: 288461 [2024-11-08 18:43:26,558 INFO L226 Difference]: Without dead ends: 186981 [2024-11-08 18:43:26,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:43:26,618 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 2691 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:43:26,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 625 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:43:26,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186981 states. [2024-11-08 18:43:30,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186981 to 186611. [2024-11-08 18:43:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186611 states, 186610 states have (on average 1.3641176785809979) internal successors, (254558), 186610 states have internal predecessors, (254558), 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) [2024-11-08 18:43:30,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186611 states to 186611 states and 254558 transitions. [2024-11-08 18:43:30,526 INFO L78 Accepts]: Start accepts. Automaton has 186611 states and 254558 transitions. Word has length 153 [2024-11-08 18:43:30,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:43:30,526 INFO L471 AbstractCegarLoop]: Abstraction has 186611 states and 254558 transitions. [2024-11-08 18:43:30,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 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) [2024-11-08 18:43:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 186611 states and 254558 transitions.