./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/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_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/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_56b4148d-a838-4d02-bc7c-47185db606ea/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 c39b660f273ecbdfa60a013e46dad0637949d26902d1f41ae3834ad8e3310564 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:04:17,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:17,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:04:17,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:17,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:17,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:17,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:17,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:17,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:17,761 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:17,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:17,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:17,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:17,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:17,763 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:17,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:17,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:17,768 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:04:17,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:04:17,769 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:04:17,769 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:17,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:17,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:17,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:17,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:17,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:04:17,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:17,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:17,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:17,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:17,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:17,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:17,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:17,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:17,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:17,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:17,778 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:04:17,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:04:17,782 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:17,783 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:17,783 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:17,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:17,784 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_56b4148d-a838-4d02-bc7c-47185db606ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c39b660f273ecbdfa60a013e46dad0637949d26902d1f41ae3834ad8e3310564 [2024-11-08 16:04:18,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:18,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:18,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:18,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:18,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:18,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c Unable to find full path for "g++" [2024-11-08 16:04:20,069 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:20,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:20,282 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-08 16:04:20,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/data/c1a721b01/38260c61fcb44fe98fa8abb22843e1c5/FLAG0e29a6890 [2024-11-08 16:04:20,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/data/c1a721b01/38260c61fcb44fe98fa8abb22843e1c5 [2024-11-08 16:04:20,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:20,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:20,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:20,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:20,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:20,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:20" (1/1) ... [2024-11-08 16:04:20,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@540f1df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:20, skipping insertion in model container [2024-11-08 16:04:20,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:20" (1/1) ... [2024-11-08 16:04:20,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:21,043 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_56b4148d-a838-4d02-bc7c-47185db606ea/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7469,7482] [2024-11-08 16:04:21,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:21,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:21,207 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_56b4148d-a838-4d02-bc7c-47185db606ea/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7469,7482] [2024-11-08 16:04:21,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:21,277 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:21,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21 WrapperNode [2024-11-08 16:04:21,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:21,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:21,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:21,280 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:21,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,365 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 665 [2024-11-08 16:04:21,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:21,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:21,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:21,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:21,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,426 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 16:04:21,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:21,474 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:21,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:21,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:21,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:21,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:21,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:04:21,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:04:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:04:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:21,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:21,674 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:21,676 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:22,508 INFO L? ?]: Removed 89 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:22,508 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:22,535 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:22,535 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:04:22,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:22 BoogieIcfgContainer [2024-11-08 16:04:22,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:22,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:22,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:22,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:22,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:20" (1/3) ... [2024-11-08 16:04:22,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21743ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:22, skipping insertion in model container [2024-11-08 16:04:22,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21" (2/3) ... [2024-11-08 16:04:22,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21743ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:22, skipping insertion in model container [2024-11-08 16:04:22,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:22" (3/3) ... [2024-11-08 16:04:22,550 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-08 16:04:22,570 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:22,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:04:22,731 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:22,738 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;@4c920342, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:22,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:04:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 160 states have (on average 1.70625) internal successors, (273), 161 states have internal predecessors, (273), 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 16:04:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-08 16:04:22,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:22,771 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] [2024-11-08 16:04:22,772 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:22,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:22,779 INFO L85 PathProgramCache]: Analyzing trace with hash 985312972, now seen corresponding path program 1 times [2024-11-08 16:04:22,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:22,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455694231] [2024-11-08 16:04:22,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:22,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:23,424 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 16:04:23,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:23,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455694231] [2024-11-08 16:04:23,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455694231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:23,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:23,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:23,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354785208] [2024-11-08 16:04:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:23,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:23,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:23,459 INFO L87 Difference]: Start difference. First operand has 162 states, 160 states have (on average 1.70625) internal successors, (273), 161 states have internal predecessors, (273), 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 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 16:04:23,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:23,742 INFO L93 Difference]: Finished difference Result 517 states and 836 transitions. [2024-11-08 16:04:23,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:23,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 50 [2024-11-08 16:04:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:23,759 INFO L225 Difference]: With dead ends: 517 [2024-11-08 16:04:23,760 INFO L226 Difference]: Without dead ends: 438 [2024-11-08 16:04:23,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:23,770 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 913 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:23,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1288 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:23,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-08 16:04:23,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 256. [2024-11-08 16:04:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.4980392156862745) internal successors, (382), 255 states have internal predecessors, (382), 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 16:04:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 382 transitions. [2024-11-08 16:04:23,850 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 382 transitions. Word has length 50 [2024-11-08 16:04:23,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:23,851 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 382 transitions. [2024-11-08 16:04:23,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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 16:04:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 382 transitions. [2024-11-08 16:04:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 16:04:23,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:23,853 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] [2024-11-08 16:04:23,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:04:23,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:23,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash -722006169, now seen corresponding path program 1 times [2024-11-08 16:04:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688780599] [2024-11-08 16:04:23,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:23,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:24,057 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 16:04:24,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:24,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688780599] [2024-11-08 16:04:24,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688780599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:24,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:24,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:24,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215202089] [2024-11-08 16:04:24,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:24,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:24,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:24,062 INFO L87 Difference]: Start difference. First operand 256 states and 382 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:24,122 INFO L93 Difference]: Finished difference Result 628 states and 954 transitions. [2024-11-08 16:04:24,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:24,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2024-11-08 16:04:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:24,128 INFO L225 Difference]: With dead ends: 628 [2024-11-08 16:04:24,129 INFO L226 Difference]: Without dead ends: 430 [2024-11-08 16:04:24,131 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 16:04:24,133 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:24,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 420 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:24,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-08 16:04:24,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 428. [2024-11-08 16:04:24,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 427 states have (on average 1.484777517564403) internal successors, (634), 427 states have internal predecessors, (634), 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 16:04:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 634 transitions. [2024-11-08 16:04:24,165 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 634 transitions. Word has length 53 [2024-11-08 16:04:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:24,165 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 634 transitions. [2024-11-08 16:04:24,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 634 transitions. [2024-11-08 16:04:24,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 16:04:24,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:24,168 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] [2024-11-08 16:04:24,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:04:24,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:24,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash -695460410, now seen corresponding path program 1 times [2024-11-08 16:04:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:24,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129633156] [2024-11-08 16:04:24,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:24,298 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 16:04:24,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:24,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129633156] [2024-11-08 16:04:24,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129633156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:24,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:24,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:24,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449912766] [2024-11-08 16:04:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:24,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:24,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:24,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:24,305 INFO L87 Difference]: Start difference. First operand 428 states and 634 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:24,348 INFO L93 Difference]: Finished difference Result 1078 states and 1615 transitions. [2024-11-08 16:04:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:24,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2024-11-08 16:04:24,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:24,353 INFO L225 Difference]: With dead ends: 1078 [2024-11-08 16:04:24,353 INFO L226 Difference]: Without dead ends: 750 [2024-11-08 16:04:24,355 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 16:04:24,357 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 157 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:24,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 434 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-08 16:04:24,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 748. [2024-11-08 16:04:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 747 states have (on average 1.4725568942436413) internal successors, (1100), 747 states have internal predecessors, (1100), 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 16:04:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1100 transitions. [2024-11-08 16:04:24,384 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1100 transitions. Word has length 53 [2024-11-08 16:04:24,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:24,385 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1100 transitions. [2024-11-08 16:04:24,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1100 transitions. [2024-11-08 16:04:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-08 16:04:24,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:24,388 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] [2024-11-08 16:04:24,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:04:24,389 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:24,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:24,390 INFO L85 PathProgramCache]: Analyzing trace with hash -272648633, now seen corresponding path program 1 times [2024-11-08 16:04:24,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:24,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470385373] [2024-11-08 16:04:24,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:24,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:24,496 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 16:04:24,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:24,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470385373] [2024-11-08 16:04:24,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470385373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:24,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:24,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:24,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272679234] [2024-11-08 16:04:24,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:24,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:24,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:24,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:24,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:24,501 INFO L87 Difference]: Start difference. First operand 748 states and 1100 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:24,554 INFO L93 Difference]: Finished difference Result 1859 states and 2747 transitions. [2024-11-08 16:04:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:24,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2024-11-08 16:04:24,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:24,559 INFO L225 Difference]: With dead ends: 1859 [2024-11-08 16:04:24,560 INFO L226 Difference]: Without dead ends: 1295 [2024-11-08 16:04:24,565 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 16:04:24,566 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:24,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 434 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:24,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-08 16:04:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1293. [2024-11-08 16:04:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1293 states, 1292 states have (on average 1.4504643962848298) internal successors, (1874), 1292 states have internal predecessors, (1874), 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 16:04:24,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1293 states to 1293 states and 1874 transitions. [2024-11-08 16:04:24,601 INFO L78 Accepts]: Start accepts. Automaton has 1293 states and 1874 transitions. Word has length 53 [2024-11-08 16:04:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:24,602 INFO L471 AbstractCegarLoop]: Abstraction has 1293 states and 1874 transitions. [2024-11-08 16:04:24,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 16:04:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1293 states and 1874 transitions. [2024-11-08 16:04:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:04:24,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:24,608 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] [2024-11-08 16:04:24,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:04:24,609 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:24,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:24,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1724922721, now seen corresponding path program 1 times [2024-11-08 16:04:24,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:24,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042699852] [2024-11-08 16:04:24,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:24,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:24,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:24,764 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 16:04:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:24,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042699852] [2024-11-08 16:04:24,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042699852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:24,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:24,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953643606] [2024-11-08 16:04:24,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:24,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:24,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:24,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:24,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:24,767 INFO L87 Difference]: Start difference. First operand 1293 states and 1874 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:24,916 INFO L93 Difference]: Finished difference Result 2516 states and 3713 transitions. [2024-11-08 16:04:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:24,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2024-11-08 16:04:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:24,925 INFO L225 Difference]: With dead ends: 2516 [2024-11-08 16:04:24,926 INFO L226 Difference]: Without dead ends: 2150 [2024-11-08 16:04:24,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:24,928 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 633 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:24,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1128 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-08 16:04:24,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 1745. [2024-11-08 16:04:24,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1744 states have (on average 1.4581422018348624) internal successors, (2543), 1744 states have internal predecessors, (2543), 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 16:04:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2543 transitions. [2024-11-08 16:04:24,995 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2543 transitions. Word has length 54 [2024-11-08 16:04:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:24,996 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2543 transitions. [2024-11-08 16:04:24,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2543 transitions. [2024-11-08 16:04:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:04:24,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:24,998 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] [2024-11-08 16:04:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:04:24,998 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1943574737, now seen corresponding path program 1 times [2024-11-08 16:04:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:24,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483298809] [2024-11-08 16:04:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:25,208 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 16:04:25,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:25,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483298809] [2024-11-08 16:04:25,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483298809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:25,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:25,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:25,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635296031] [2024-11-08 16:04:25,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:25,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:25,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:25,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:25,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:25,211 INFO L87 Difference]: Start difference. First operand 1745 states and 2543 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:25,348 INFO L93 Difference]: Finished difference Result 2968 states and 4382 transitions. [2024-11-08 16:04:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:25,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2024-11-08 16:04:25,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:25,358 INFO L225 Difference]: With dead ends: 2968 [2024-11-08 16:04:25,358 INFO L226 Difference]: Without dead ends: 2602 [2024-11-08 16:04:25,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:25,363 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 625 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 987 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:25,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 987 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2024-11-08 16:04:25,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2091. [2024-11-08 16:04:25,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 2090 states have (on average 1.4631578947368422) internal successors, (3058), 2090 states have internal predecessors, (3058), 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 16:04:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 3058 transitions. [2024-11-08 16:04:25,430 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 3058 transitions. Word has length 54 [2024-11-08 16:04:25,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:25,433 INFO L471 AbstractCegarLoop]: Abstraction has 2091 states and 3058 transitions. [2024-11-08 16:04:25,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 3058 transitions. [2024-11-08 16:04:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-08 16:04:25,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:25,455 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] [2024-11-08 16:04:25,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:04:25,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:25,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash -867408349, now seen corresponding path program 1 times [2024-11-08 16:04:25,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:25,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817792040] [2024-11-08 16:04:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:25,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:25,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:25,656 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 16:04:25,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:25,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817792040] [2024-11-08 16:04:25,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817792040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:25,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:25,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:25,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816236795] [2024-11-08 16:04:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:25,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:25,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:25,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:25,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:25,661 INFO L87 Difference]: Start difference. First operand 2091 states and 3058 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:25,824 INFO L93 Difference]: Finished difference Result 3367 states and 4972 transitions. [2024-11-08 16:04:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:25,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2024-11-08 16:04:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:25,835 INFO L225 Difference]: With dead ends: 3367 [2024-11-08 16:04:25,835 INFO L226 Difference]: Without dead ends: 3001 [2024-11-08 16:04:25,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:25,838 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 627 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:25,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1128 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3001 states. [2024-11-08 16:04:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3001 to 2382. [2024-11-08 16:04:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2381 states have (on average 1.4666106677866442) internal successors, (3492), 2381 states have internal predecessors, (3492), 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 16:04:25,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3492 transitions. [2024-11-08 16:04:25,910 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3492 transitions. Word has length 54 [2024-11-08 16:04:25,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:25,910 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3492 transitions. [2024-11-08 16:04:25,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 16:04:25,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3492 transitions. [2024-11-08 16:04:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 16:04:25,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:25,914 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] [2024-11-08 16:04:25,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:04:25,914 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:25,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:25,915 INFO L85 PathProgramCache]: Analyzing trace with hash -554993830, now seen corresponding path program 1 times [2024-11-08 16:04:25,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:25,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783009986] [2024-11-08 16:04:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:26,048 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 16:04:26,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:26,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783009986] [2024-11-08 16:04:26,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783009986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:26,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:26,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:26,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391691101] [2024-11-08 16:04:26,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:26,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:26,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:26,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:26,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:26,051 INFO L87 Difference]: Start difference. First operand 2382 states and 3492 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 16:04:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:26,376 INFO L93 Difference]: Finished difference Result 5669 states and 8297 transitions. [2024-11-08 16:04:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-11-08 16:04:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:26,386 INFO L225 Difference]: With dead ends: 5669 [2024-11-08 16:04:26,387 INFO L226 Difference]: Without dead ends: 3315 [2024-11-08 16:04:26,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:26,392 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 894 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:26,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 208 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:26,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2024-11-08 16:04:26,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 3288. [2024-11-08 16:04:26,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3287 states have (on average 1.4432613325220567) internal successors, (4744), 3287 states have internal predecessors, (4744), 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 16:04:26,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4744 transitions. [2024-11-08 16:04:26,475 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4744 transitions. Word has length 58 [2024-11-08 16:04:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:26,475 INFO L471 AbstractCegarLoop]: Abstraction has 3288 states and 4744 transitions. [2024-11-08 16:04:26,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 16:04:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4744 transitions. [2024-11-08 16:04:26,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 16:04:26,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:26,478 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] [2024-11-08 16:04:26,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:04:26,478 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:26,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:26,479 INFO L85 PathProgramCache]: Analyzing trace with hash 500702524, now seen corresponding path program 1 times [2024-11-08 16:04:26,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:26,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876235267] [2024-11-08 16:04:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:26,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:26,615 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 16:04:26,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:26,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876235267] [2024-11-08 16:04:26,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876235267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:26,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:26,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:26,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220540762] [2024-11-08 16:04:26,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:26,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:26,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:26,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:26,619 INFO L87 Difference]: Start difference. First operand 3288 states and 4744 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 16:04:26,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:26,908 INFO L93 Difference]: Finished difference Result 7833 states and 11294 transitions. [2024-11-08 16:04:26,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:26,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 58 [2024-11-08 16:04:26,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:26,922 INFO L225 Difference]: With dead ends: 7833 [2024-11-08 16:04:26,922 INFO L226 Difference]: Without dead ends: 4591 [2024-11-08 16:04:26,926 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 16:04:26,927 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 880 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:26,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 226 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:26,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2024-11-08 16:04:27,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4566. [2024-11-08 16:04:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4566 states, 4565 states have (on average 1.4297918948521358) internal successors, (6527), 4565 states have internal predecessors, (6527), 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 16:04:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 6527 transitions. [2024-11-08 16:04:27,057 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 6527 transitions. Word has length 58 [2024-11-08 16:04:27,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:27,057 INFO L471 AbstractCegarLoop]: Abstraction has 4566 states and 6527 transitions. [2024-11-08 16:04:27,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 16:04:27,058 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 6527 transitions. [2024-11-08 16:04:27,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:04:27,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:27,060 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] [2024-11-08 16:04:27,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:04:27,061 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:27,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1531409244, now seen corresponding path program 1 times [2024-11-08 16:04:27,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:27,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093232363] [2024-11-08 16:04:27,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:27,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:27,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:27,179 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 16:04:27,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:27,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093232363] [2024-11-08 16:04:27,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093232363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:27,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:27,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:04:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833436887] [2024-11-08 16:04:27,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:27,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:27,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:27,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:27,182 INFO L87 Difference]: Start difference. First operand 4566 states and 6527 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 16:04:27,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:27,439 INFO L93 Difference]: Finished difference Result 10822 states and 15448 transitions. [2024-11-08 16:04:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:27,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 59 [2024-11-08 16:04:27,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:27,459 INFO L225 Difference]: With dead ends: 10822 [2024-11-08 16:04:27,460 INFO L226 Difference]: Without dead ends: 6338 [2024-11-08 16:04:27,465 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 16:04:27,465 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 835 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:27,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 228 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:27,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6338 states. [2024-11-08 16:04:27,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6338 to 6303. [2024-11-08 16:04:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6303 states, 6302 states have (on average 1.4136781973976515) internal successors, (8909), 6302 states have internal predecessors, (8909), 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 16:04:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 8909 transitions. [2024-11-08 16:04:27,638 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 8909 transitions. Word has length 59 [2024-11-08 16:04:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:27,638 INFO L471 AbstractCegarLoop]: Abstraction has 6303 states and 8909 transitions. [2024-11-08 16:04:27,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 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 16:04:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 8909 transitions. [2024-11-08 16:04:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:04:27,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:27,642 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] [2024-11-08 16:04:27,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:04:27,642 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:27,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:27,643 INFO L85 PathProgramCache]: Analyzing trace with hash -97252013, now seen corresponding path program 1 times [2024-11-08 16:04:27,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:27,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019290841] [2024-11-08 16:04:27,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:27,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:27,853 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 16:04:27,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:27,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019290841] [2024-11-08 16:04:27,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019290841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:27,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:27,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:04:27,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801713398] [2024-11-08 16:04:27,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:27,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:04:27,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:27,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:04:27,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:27,856 INFO L87 Difference]: Start difference. First operand 6303 states and 8909 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:28,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:28,324 INFO L93 Difference]: Finished difference Result 14261 states and 20058 transitions. [2024-11-08 16:04:28,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:28,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2024-11-08 16:04:28,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:28,357 INFO L225 Difference]: With dead ends: 14261 [2024-11-08 16:04:28,357 INFO L226 Difference]: Without dead ends: 10983 [2024-11-08 16:04:28,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:04:28,364 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1099 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:28,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 325 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10983 states. [2024-11-08 16:04:28,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10983 to 6323. [2024-11-08 16:04:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6323 states, 6322 states have (on average 1.4130022144890857) internal successors, (8933), 6322 states have internal predecessors, (8933), 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 16:04:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6323 states to 6323 states and 8933 transitions. [2024-11-08 16:04:28,552 INFO L78 Accepts]: Start accepts. Automaton has 6323 states and 8933 transitions. Word has length 60 [2024-11-08 16:04:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:28,552 INFO L471 AbstractCegarLoop]: Abstraction has 6323 states and 8933 transitions. [2024-11-08 16:04:28,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 6323 states and 8933 transitions. [2024-11-08 16:04:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:04:28,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:28,556 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] [2024-11-08 16:04:28,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:04:28,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:28,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -172891724, now seen corresponding path program 1 times [2024-11-08 16:04:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:28,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479041231] [2024-11-08 16:04:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:28,749 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 16:04:28,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:28,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479041231] [2024-11-08 16:04:28,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479041231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:28,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:28,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:04:28,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37021771] [2024-11-08 16:04:28,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:28,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:04:28,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:28,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:04:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:28,752 INFO L87 Difference]: Start difference. First operand 6323 states and 8933 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:29,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:29,229 INFO L93 Difference]: Finished difference Result 16465 states and 23196 transitions. [2024-11-08 16:04:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:29,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2024-11-08 16:04:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:29,256 INFO L225 Difference]: With dead ends: 16465 [2024-11-08 16:04:29,257 INFO L226 Difference]: Without dead ends: 13359 [2024-11-08 16:04:29,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:04:29,264 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1280 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:29,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 373 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:29,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13359 states. [2024-11-08 16:04:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13359 to 6417. [2024-11-08 16:04:29,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6417 states, 6416 states have (on average 1.4111596009975063) internal successors, (9054), 6416 states have internal predecessors, (9054), 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 16:04:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6417 states to 6417 states and 9054 transitions. [2024-11-08 16:04:29,524 INFO L78 Accepts]: Start accepts. Automaton has 6417 states and 9054 transitions. Word has length 60 [2024-11-08 16:04:29,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:29,525 INFO L471 AbstractCegarLoop]: Abstraction has 6417 states and 9054 transitions. [2024-11-08 16:04:29,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 6417 states and 9054 transitions. [2024-11-08 16:04:29,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:04:29,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:29,536 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] [2024-11-08 16:04:29,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:04:29,537 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:29,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:29,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2054897963, now seen corresponding path program 1 times [2024-11-08 16:04:29,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:29,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834299755] [2024-11-08 16:04:29,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:29,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:29,721 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 16:04:29,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:29,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834299755] [2024-11-08 16:04:29,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834299755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:29,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:29,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:04:29,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574811878] [2024-11-08 16:04:29,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:29,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:04:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:29,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:04:29,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:04:29,724 INFO L87 Difference]: Start difference. First operand 6417 states and 9054 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:30,214 INFO L93 Difference]: Finished difference Result 19398 states and 27286 transitions. [2024-11-08 16:04:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:30,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 60 [2024-11-08 16:04:30,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:30,248 INFO L225 Difference]: With dead ends: 19398 [2024-11-08 16:04:30,248 INFO L226 Difference]: Without dead ends: 16300 [2024-11-08 16:04:30,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:04:30,256 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1445 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:30,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 386 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:04:30,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16300 states. [2024-11-08 16:04:30,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16300 to 6473. [2024-11-08 16:04:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6473 states, 6472 states have (on average 1.409610630407911) internal successors, (9123), 6472 states have internal predecessors, (9123), 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 16:04:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6473 states to 6473 states and 9123 transitions. [2024-11-08 16:04:30,480 INFO L78 Accepts]: Start accepts. Automaton has 6473 states and 9123 transitions. Word has length 60 [2024-11-08 16:04:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:30,481 INFO L471 AbstractCegarLoop]: Abstraction has 6473 states and 9123 transitions. [2024-11-08 16:04:30,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 6 states have internal predecessors, (60), 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 16:04:30,481 INFO L276 IsEmpty]: Start isEmpty. Operand 6473 states and 9123 transitions. [2024-11-08 16:04:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 16:04:30,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:30,485 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] [2024-11-08 16:04:30,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:04:30,485 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:30,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1036507303, now seen corresponding path program 1 times [2024-11-08 16:04:30,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:30,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355984102] [2024-11-08 16:04:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:31,022 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 16:04:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:31,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355984102] [2024-11-08 16:04:31,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355984102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:31,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:31,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:31,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032601221] [2024-11-08 16:04:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:31,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:31,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:31,025 INFO L87 Difference]: Start difference. First operand 6473 states and 9123 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:31,875 INFO L93 Difference]: Finished difference Result 15340 states and 21713 transitions. [2024-11-08 16:04:31,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 62 [2024-11-08 16:04:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:31,893 INFO L225 Difference]: With dead ends: 15340 [2024-11-08 16:04:31,894 INFO L226 Difference]: Without dead ends: 10138 [2024-11-08 16:04:31,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:31,900 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 594 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:31,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 743 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:04:31,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10138 states. [2024-11-08 16:04:32,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10138 to 6341. [2024-11-08 16:04:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6341 states, 6340 states have (on average 1.407570977917981) internal successors, (8924), 6340 states have internal predecessors, (8924), 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 16:04:32,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6341 states to 6341 states and 8924 transitions. [2024-11-08 16:04:32,071 INFO L78 Accepts]: Start accepts. Automaton has 6341 states and 8924 transitions. Word has length 62 [2024-11-08 16:04:32,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:32,071 INFO L471 AbstractCegarLoop]: Abstraction has 6341 states and 8924 transitions. [2024-11-08 16:04:32,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:32,072 INFO L276 IsEmpty]: Start isEmpty. Operand 6341 states and 8924 transitions. [2024-11-08 16:04:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 16:04:32,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:32,075 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] [2024-11-08 16:04:32,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:04:32,076 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:32,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1459319080, now seen corresponding path program 1 times [2024-11-08 16:04:32,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:32,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002863238] [2024-11-08 16:04:32,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:32,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:32,613 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 16:04:32,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002863238] [2024-11-08 16:04:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002863238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490036407] [2024-11-08 16:04:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:32,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:32,615 INFO L87 Difference]: Start difference. First operand 6341 states and 8924 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:33,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:33,761 INFO L93 Difference]: Finished difference Result 15400 states and 21735 transitions. [2024-11-08 16:04:33,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:04:33,761 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 62 [2024-11-08 16:04:33,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:33,780 INFO L225 Difference]: With dead ends: 15400 [2024-11-08 16:04:33,781 INFO L226 Difference]: Without dead ends: 10105 [2024-11-08 16:04:33,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:04:33,788 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 1036 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:33,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 875 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:04:33,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10105 states. [2024-11-08 16:04:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10105 to 6144. [2024-11-08 16:04:33,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6144 states, 6143 states have (on average 1.4061533452710402) internal successors, (8638), 6143 states have internal predecessors, (8638), 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 16:04:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6144 states to 6144 states and 8638 transitions. [2024-11-08 16:04:33,942 INFO L78 Accepts]: Start accepts. Automaton has 6144 states and 8638 transitions. Word has length 62 [2024-11-08 16:04:33,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:33,943 INFO L471 AbstractCegarLoop]: Abstraction has 6144 states and 8638 transitions. [2024-11-08 16:04:33,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 6144 states and 8638 transitions. [2024-11-08 16:04:33,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 16:04:33,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:33,946 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] [2024-11-08 16:04:33,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:04:33,947 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:33,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:33,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2010042985, now seen corresponding path program 1 times [2024-11-08 16:04:33,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:33,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723672564] [2024-11-08 16:04:33,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:33,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:34,439 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 16:04:34,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:34,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723672564] [2024-11-08 16:04:34,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723672564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:34,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:34,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:04:34,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436139948] [2024-11-08 16:04:34,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:34,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:04:34,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:34,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:04:34,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:04:34,444 INFO L87 Difference]: Start difference. First operand 6144 states and 8638 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:35,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:35,253 INFO L93 Difference]: Finished difference Result 14988 states and 21182 transitions. [2024-11-08 16:04:35,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:04:35,253 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 62 [2024-11-08 16:04:35,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:35,274 INFO L225 Difference]: With dead ends: 14988 [2024-11-08 16:04:35,274 INFO L226 Difference]: Without dead ends: 9752 [2024-11-08 16:04:35,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:04:35,282 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1176 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:35,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 780 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:04:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9752 states. [2024-11-08 16:04:35,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9752 to 6003. [2024-11-08 16:04:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 1.406697767410863) internal successors, (8443), 6002 states have internal predecessors, (8443), 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 16:04:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 8443 transitions. [2024-11-08 16:04:35,460 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 8443 transitions. Word has length 62 [2024-11-08 16:04:35,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:35,460 INFO L471 AbstractCegarLoop]: Abstraction has 6003 states and 8443 transitions. [2024-11-08 16:04:35,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 16:04:35,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 8443 transitions. [2024-11-08 16:04:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:04:35,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:35,465 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] [2024-11-08 16:04:35,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:04:35,465 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:35,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1983119998, now seen corresponding path program 1 times [2024-11-08 16:04:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409501033] [2024-11-08 16:04:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:35,609 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 16:04:35,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:35,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409501033] [2024-11-08 16:04:35,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409501033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:35,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:35,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:35,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99586106] [2024-11-08 16:04:35,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:35,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:35,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:35,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:35,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:35,612 INFO L87 Difference]: Start difference. First operand 6003 states and 8443 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:35,675 INFO L93 Difference]: Finished difference Result 9060 states and 12752 transitions. [2024-11-08 16:04:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:35,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-11-08 16:04:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:35,687 INFO L225 Difference]: With dead ends: 9060 [2024-11-08 16:04:35,687 INFO L226 Difference]: Without dead ends: 5806 [2024-11-08 16:04:35,691 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 16:04:35,692 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 148 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:35,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 521 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:35,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5806 states. [2024-11-08 16:04:35,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5806 to 5804. [2024-11-08 16:04:35,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5804 states, 5803 states have (on average 1.387558159572635) internal successors, (8052), 5803 states have internal predecessors, (8052), 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 16:04:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5804 states to 5804 states and 8052 transitions. [2024-11-08 16:04:35,886 INFO L78 Accepts]: Start accepts. Automaton has 5804 states and 8052 transitions. Word has length 63 [2024-11-08 16:04:35,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:35,886 INFO L471 AbstractCegarLoop]: Abstraction has 5804 states and 8052 transitions. [2024-11-08 16:04:35,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:35,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5804 states and 8052 transitions. [2024-11-08 16:04:35,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:04:35,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:35,893 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] [2024-11-08 16:04:35,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:04:35,896 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:35,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1051173576, now seen corresponding path program 1 times [2024-11-08 16:04:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:35,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964942085] [2024-11-08 16:04:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:35,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:35,981 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 16:04:35,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:35,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964942085] [2024-11-08 16:04:35,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964942085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:35,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:35,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:35,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299291151] [2024-11-08 16:04:35,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:35,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:35,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:35,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:35,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:35,984 INFO L87 Difference]: Start difference. First operand 5804 states and 8052 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:36,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:36,027 INFO L93 Difference]: Finished difference Result 8092 states and 11221 transitions. [2024-11-08 16:04:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-11-08 16:04:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:36,037 INFO L225 Difference]: With dead ends: 8092 [2024-11-08 16:04:36,037 INFO L226 Difference]: Without dead ends: 5023 [2024-11-08 16:04:36,041 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 16:04:36,042 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 134 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:36,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 513 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5023 states. [2024-11-08 16:04:36,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5023 to 5021. [2024-11-08 16:04:36,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 5020 states have (on average 1.3629482071713148) internal successors, (6842), 5020 states have internal predecessors, (6842), 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 16:04:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 6842 transitions. [2024-11-08 16:04:36,111 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 6842 transitions. Word has length 63 [2024-11-08 16:04:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:36,112 INFO L471 AbstractCegarLoop]: Abstraction has 5021 states and 6842 transitions. [2024-11-08 16:04:36,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 6842 transitions. [2024-11-08 16:04:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 16:04:36,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:36,115 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] [2024-11-08 16:04:36,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:04:36,116 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:36,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash -125701859, now seen corresponding path program 1 times [2024-11-08 16:04:36,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:36,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668989130] [2024-11-08 16:04:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:36,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:36,203 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 16:04:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668989130] [2024-11-08 16:04:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668989130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:36,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663449806] [2024-11-08 16:04:36,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:36,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:36,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:36,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:36,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:36,206 INFO L87 Difference]: Start difference. First operand 5021 states and 6842 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:36,242 INFO L93 Difference]: Finished difference Result 6625 states and 9028 transitions. [2024-11-08 16:04:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2024-11-08 16:04:36,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:36,250 INFO L225 Difference]: With dead ends: 6625 [2024-11-08 16:04:36,250 INFO L226 Difference]: Without dead ends: 3867 [2024-11-08 16:04:36,253 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 16:04:36,254 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:36,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 524 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:36,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2024-11-08 16:04:36,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3865. [2024-11-08 16:04:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 3864 states have (on average 1.3382505175983437) internal successors, (5171), 3864 states have internal predecessors, (5171), 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 16:04:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5171 transitions. [2024-11-08 16:04:36,310 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5171 transitions. Word has length 63 [2024-11-08 16:04:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:36,311 INFO L471 AbstractCegarLoop]: Abstraction has 3865 states and 5171 transitions. [2024-11-08 16:04:36,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 16:04:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5171 transitions. [2024-11-08 16:04:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 16:04:36,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:36,314 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] [2024-11-08 16:04:36,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:04:36,314 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:36,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:36,315 INFO L85 PathProgramCache]: Analyzing trace with hash 666404545, now seen corresponding path program 1 times [2024-11-08 16:04:36,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:36,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760761430] [2024-11-08 16:04:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:36,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:36,385 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 16:04:36,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:36,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760761430] [2024-11-08 16:04:36,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760761430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:36,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:36,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:36,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144800612] [2024-11-08 16:04:36,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:36,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:36,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:36,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:36,388 INFO L87 Difference]: Start difference. First operand 3865 states and 5171 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 16:04:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:36,447 INFO L93 Difference]: Finished difference Result 7116 states and 9579 transitions. [2024-11-08 16:04:36,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:36,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2024-11-08 16:04:36,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:36,456 INFO L225 Difference]: With dead ends: 7116 [2024-11-08 16:04:36,456 INFO L226 Difference]: Without dead ends: 5197 [2024-11-08 16:04:36,459 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 16:04:36,460 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 171 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:36,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 343 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2024-11-08 16:04:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 3680. [2024-11-08 16:04:36,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 3679 states have (on average 1.337048110899701) internal successors, (4919), 3679 states have internal predecessors, (4919), 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 16:04:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 4919 transitions. [2024-11-08 16:04:36,520 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 4919 transitions. Word has length 64 [2024-11-08 16:04:36,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:36,521 INFO L471 AbstractCegarLoop]: Abstraction has 3680 states and 4919 transitions. [2024-11-08 16:04:36,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 16:04:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 4919 transitions. [2024-11-08 16:04:36,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 16:04:36,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:36,523 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] [2024-11-08 16:04:36,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:04:36,524 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:36,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash 859970200, now seen corresponding path program 1 times [2024-11-08 16:04:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:36,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217725210] [2024-11-08 16:04:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:36,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:37,503 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 16:04:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217725210] [2024-11-08 16:04:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217725210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:37,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:04:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373443549] [2024-11-08 16:04:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:37,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:04:37,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:04:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:04:37,506 INFO L87 Difference]: Start difference. First operand 3680 states and 4919 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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 16:04:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:39,341 INFO L93 Difference]: Finished difference Result 8982 states and 12116 transitions. [2024-11-08 16:04:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 16:04:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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 64 [2024-11-08 16:04:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:39,358 INFO L225 Difference]: With dead ends: 8982 [2024-11-08 16:04:39,358 INFO L226 Difference]: Without dead ends: 8640 [2024-11-08 16:04:39,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:04:39,362 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 2007 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:39,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 2730 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:04:39,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2024-11-08 16:04:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 3626. [2024-11-08 16:04:39,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3625 states have (on average 1.3373793103448275) internal successors, (4848), 3625 states have internal predecessors, (4848), 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 16:04:39,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 4848 transitions. [2024-11-08 16:04:39,445 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 4848 transitions. Word has length 64 [2024-11-08 16:04:39,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:39,445 INFO L471 AbstractCegarLoop]: Abstraction has 3626 states and 4848 transitions. [2024-11-08 16:04:39,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 states have internal predecessors, (64), 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 16:04:39,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 4848 transitions. [2024-11-08 16:04:39,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 16:04:39,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:39,449 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] [2024-11-08 16:04:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:04:39,449 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 682523932, now seen corresponding path program 1 times [2024-11-08 16:04:39,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:39,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068998353] [2024-11-08 16:04:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:39,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:40,301 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 16:04:40,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:40,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068998353] [2024-11-08 16:04:40,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068998353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:40,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:04:40,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588638704] [2024-11-08 16:04:40,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:40,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:04:40,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:04:40,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:04:40,305 INFO L87 Difference]: Start difference. First operand 3626 states and 4848 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 16:04:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,327 INFO L93 Difference]: Finished difference Result 5687 states and 7656 transitions. [2024-11-08 16:04:41,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:04:41,327 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 64 [2024-11-08 16:04:41,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,339 INFO L225 Difference]: With dead ends: 5687 [2024-11-08 16:04:41,339 INFO L226 Difference]: Without dead ends: 5335 [2024-11-08 16:04:41,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:04:41,342 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1280 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1546 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:04:41,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5335 states. [2024-11-08 16:04:41,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5335 to 3552. [2024-11-08 16:04:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3551 states have (on average 1.3370881441847366) internal successors, (4748), 3551 states have internal predecessors, (4748), 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 16:04:41,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 4748 transitions. [2024-11-08 16:04:41,398 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 4748 transitions. Word has length 64 [2024-11-08 16:04:41,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,399 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 4748 transitions. [2024-11-08 16:04:41,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 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 16:04:41,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 4748 transitions. [2024-11-08 16:04:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 16:04:41,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,402 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] [2024-11-08 16:04:41,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:04:41,402 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1079669093, now seen corresponding path program 1 times [2024-11-08 16:04:41,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999907059] [2024-11-08 16:04:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:41,461 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 16:04:41,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:41,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999907059] [2024-11-08 16:04:41,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999907059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:41,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:41,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:41,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504020469] [2024-11-08 16:04:41,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:41,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:41,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:41,467 INFO L87 Difference]: Start difference. First operand 3552 states and 4748 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 16:04:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,523 INFO L93 Difference]: Finished difference Result 6603 states and 8886 transitions. [2024-11-08 16:04:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:41,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2024-11-08 16:04:41,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,532 INFO L225 Difference]: With dead ends: 6603 [2024-11-08 16:04:41,532 INFO L226 Difference]: Without dead ends: 4781 [2024-11-08 16:04:41,534 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 16:04:41,535 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 171 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 353 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:41,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2024-11-08 16:04:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 3342. [2024-11-08 16:04:41,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 3341 states have (on average 1.3367255312780604) internal successors, (4466), 3341 states have internal predecessors, (4466), 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 16:04:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 4466 transitions. [2024-11-08 16:04:41,624 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 4466 transitions. Word has length 64 [2024-11-08 16:04:41,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,625 INFO L471 AbstractCegarLoop]: Abstraction has 3342 states and 4466 transitions. [2024-11-08 16:04:41,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 16:04:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 4466 transitions. [2024-11-08 16:04:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:04:41,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,629 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] [2024-11-08 16:04:41,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:04:41,630 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1563174538, now seen corresponding path program 1 times [2024-11-08 16:04:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648234434] [2024-11-08 16:04:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:41,807 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 16:04:41,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:41,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648234434] [2024-11-08 16:04:41,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648234434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:41,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:41,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306352944] [2024-11-08 16:04:41,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:41,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:41,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:41,810 INFO L87 Difference]: Start difference. First operand 3342 states and 4466 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 16:04:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:41,894 INFO L93 Difference]: Finished difference Result 3348 states and 4469 transitions. [2024-11-08 16:04:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-08 16:04:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:41,900 INFO L225 Difference]: With dead ends: 3348 [2024-11-08 16:04:41,901 INFO L226 Difference]: Without dead ends: 2873 [2024-11-08 16:04:41,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:41,905 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 459 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:41,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 663 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:41,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2873 states. [2024-11-08 16:04:41,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2873 to 2869. [2024-11-08 16:04:41,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2868 states have (on average 1.339260808926081) internal successors, (3841), 2868 states have internal predecessors, (3841), 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 16:04:41,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 3841 transitions. [2024-11-08 16:04:41,964 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 3841 transitions. Word has length 69 [2024-11-08 16:04:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:41,964 INFO L471 AbstractCegarLoop]: Abstraction has 2869 states and 3841 transitions. [2024-11-08 16:04:41,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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 16:04:41,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 3841 transitions. [2024-11-08 16:04:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 16:04:41,969 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:41,970 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] [2024-11-08 16:04:41,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:04:41,970 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:41,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1535111263, now seen corresponding path program 1 times [2024-11-08 16:04:41,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:41,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126981300] [2024-11-08 16:04:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:42,197 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 16:04:42,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126981300] [2024-11-08 16:04:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126981300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:42,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:42,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:42,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761869923] [2024-11-08 16:04:42,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:42,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:42,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:42,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:42,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:42,201 INFO L87 Difference]: Start difference. First operand 2869 states and 3841 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 16:04:42,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:42,260 INFO L93 Difference]: Finished difference Result 7257 states and 9832 transitions. [2024-11-08 16:04:42,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:42,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2024-11-08 16:04:42,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:42,273 INFO L225 Difference]: With dead ends: 7257 [2024-11-08 16:04:42,273 INFO L226 Difference]: Without dead ends: 4890 [2024-11-08 16:04:42,277 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 16:04:42,278 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 114 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:42,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 435 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2024-11-08 16:04:42,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4546. [2024-11-08 16:04:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4546 states, 4545 states have (on average 1.3375137513751376) internal successors, (6079), 4545 states have internal predecessors, (6079), 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 16:04:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4546 states to 4546 states and 6079 transitions. [2024-11-08 16:04:42,380 INFO L78 Accepts]: Start accepts. Automaton has 4546 states and 6079 transitions. Word has length 72 [2024-11-08 16:04:42,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:42,380 INFO L471 AbstractCegarLoop]: Abstraction has 4546 states and 6079 transitions. [2024-11-08 16:04:42,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 16:04:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4546 states and 6079 transitions. [2024-11-08 16:04:42,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-08 16:04:42,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:42,385 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] [2024-11-08 16:04:42,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:04:42,385 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:42,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:42,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1480821562, now seen corresponding path program 1 times [2024-11-08 16:04:42,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:42,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795901201] [2024-11-08 16:04:42,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:42,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:42,587 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 16:04:42,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:42,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795901201] [2024-11-08 16:04:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795901201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:42,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:42,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:42,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751091140] [2024-11-08 16:04:42,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:42,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:42,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:42,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:42,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:42,590 INFO L87 Difference]: Start difference. First operand 4546 states and 6079 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 16:04:42,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:42,644 INFO L93 Difference]: Finished difference Result 12194 states and 16429 transitions. [2024-11-08 16:04:42,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:42,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2024-11-08 16:04:42,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:42,658 INFO L225 Difference]: With dead ends: 12194 [2024-11-08 16:04:42,658 INFO L226 Difference]: Without dead ends: 8165 [2024-11-08 16:04:42,663 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 16:04:42,664 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 103 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:42,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 428 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:42,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8165 states. [2024-11-08 16:04:42,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 7575. [2024-11-08 16:04:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7575 states, 7574 states have (on average 1.335225772379192) internal successors, (10113), 7574 states have internal predecessors, (10113), 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 16:04:42,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7575 states to 7575 states and 10113 transitions. [2024-11-08 16:04:42,766 INFO L78 Accepts]: Start accepts. Automaton has 7575 states and 10113 transitions. Word has length 73 [2024-11-08 16:04:42,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:42,766 INFO L471 AbstractCegarLoop]: Abstraction has 7575 states and 10113 transitions. [2024-11-08 16:04:42,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 16:04:42,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7575 states and 10113 transitions. [2024-11-08 16:04:42,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 16:04:42,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:42,769 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] [2024-11-08 16:04:42,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:04:42,769 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:42,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1423402598, now seen corresponding path program 1 times [2024-11-08 16:04:42,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177414183] [2024-11-08 16:04:42,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:42,895 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 16:04:42,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:42,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177414183] [2024-11-08 16:04:42,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177414183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:42,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:42,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:42,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81509721] [2024-11-08 16:04:42,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:42,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:42,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:42,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:42,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:42,897 INFO L87 Difference]: Start difference. First operand 7575 states and 10113 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 16:04:42,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:42,966 INFO L93 Difference]: Finished difference Result 20871 states and 27899 transitions. [2024-11-08 16:04:42,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:42,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2024-11-08 16:04:42,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:42,990 INFO L225 Difference]: With dead ends: 20871 [2024-11-08 16:04:42,991 INFO L226 Difference]: Without dead ends: 13813 [2024-11-08 16:04:42,999 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 16:04:43,000 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 93 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:43,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 418 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:43,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13813 states. [2024-11-08 16:04:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13813 to 12635. [2024-11-08 16:04:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12635 states, 12634 states have (on average 1.3238087699857528) internal successors, (16725), 12634 states have internal predecessors, (16725), 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 16:04:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12635 states to 12635 states and 16725 transitions. [2024-11-08 16:04:43,229 INFO L78 Accepts]: Start accepts. Automaton has 12635 states and 16725 transitions. Word has length 74 [2024-11-08 16:04:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:43,229 INFO L471 AbstractCegarLoop]: Abstraction has 12635 states and 16725 transitions. [2024-11-08 16:04:43,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 16:04:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 12635 states and 16725 transitions. [2024-11-08 16:04:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 16:04:43,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:43,231 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] [2024-11-08 16:04:43,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:04:43,232 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:43,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2071973989, now seen corresponding path program 1 times [2024-11-08 16:04:43,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692739031] [2024-11-08 16:04:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:43,534 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 16:04:43,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:43,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692739031] [2024-11-08 16:04:43,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692739031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:43,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:43,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:04:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005323184] [2024-11-08 16:04:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:43,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:04:43,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:43,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:04:43,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:04:43,537 INFO L87 Difference]: Start difference. First operand 12635 states and 16725 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 16:04:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:43,607 INFO L93 Difference]: Finished difference Result 13909 states and 18422 transitions. [2024-11-08 16:04:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:04:43,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 77 [2024-11-08 16:04:43,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:43,629 INFO L225 Difference]: With dead ends: 13909 [2024-11-08 16:04:43,629 INFO L226 Difference]: Without dead ends: 13907 [2024-11-08 16:04:43,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:04:43,634 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 0 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:43,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 969 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13907 states. [2024-11-08 16:04:43,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13907 to 13907. [2024-11-08 16:04:43,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13907 states, 13906 states have (on average 1.2941895584639724) internal successors, (17997), 13906 states have internal predecessors, (17997), 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 16:04:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13907 states to 13907 states and 17997 transitions. [2024-11-08 16:04:43,818 INFO L78 Accepts]: Start accepts. Automaton has 13907 states and 17997 transitions. Word has length 77 [2024-11-08 16:04:43,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:43,818 INFO L471 AbstractCegarLoop]: Abstraction has 13907 states and 17997 transitions. [2024-11-08 16:04:43,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 16:04:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 13907 states and 17997 transitions. [2024-11-08 16:04:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 16:04:43,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:43,820 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] [2024-11-08 16:04:43,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:04:43,821 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:43,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1914492299, now seen corresponding path program 1 times [2024-11-08 16:04:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785339723] [2024-11-08 16:04:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:43,884 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 16:04:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:43,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785339723] [2024-11-08 16:04:43,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785339723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:43,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:43,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833516638] [2024-11-08 16:04:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:43,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:43,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:43,888 INFO L87 Difference]: Start difference. First operand 13907 states and 17997 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 16:04:43,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:43,994 INFO L93 Difference]: Finished difference Result 34107 states and 43967 transitions. [2024-11-08 16:04:43,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:43,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2024-11-08 16:04:43,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:44,036 INFO L225 Difference]: With dead ends: 34107 [2024-11-08 16:04:44,036 INFO L226 Difference]: Without dead ends: 20717 [2024-11-08 16:04:44,057 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 16:04:44,058 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 133 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:44,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 344 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:44,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20717 states. [2024-11-08 16:04:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20717 to 20715. [2024-11-08 16:04:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20715 states, 20714 states have (on average 1.2718451288983297) internal successors, (26345), 20714 states have internal predecessors, (26345), 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 16:04:44,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20715 states to 20715 states and 26345 transitions. [2024-11-08 16:04:44,396 INFO L78 Accepts]: Start accepts. Automaton has 20715 states and 26345 transitions. Word has length 78 [2024-11-08 16:04:44,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:44,396 INFO L471 AbstractCegarLoop]: Abstraction has 20715 states and 26345 transitions. [2024-11-08 16:04:44,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 16:04:44,396 INFO L276 IsEmpty]: Start isEmpty. Operand 20715 states and 26345 transitions. [2024-11-08 16:04:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:04:44,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:44,402 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:44,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:04:44,403 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:44,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash 660908331, now seen corresponding path program 1 times [2024-11-08 16:04:44,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:44,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715339513] [2024-11-08 16:04:44,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:44,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:44,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715339513] [2024-11-08 16:04:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715339513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:04:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218214852] [2024-11-08 16:04:44,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:44,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:04:44,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:44,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:04:44,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:04:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:45,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:04:45,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:04:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:47,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:04:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:49,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218214852] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:04:49,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:04:49,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 31 [2024-11-08 16:04:49,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883421525] [2024-11-08 16:04:49,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:04:49,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 16:04:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 16:04:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:04:49,105 INFO L87 Difference]: Start difference. First operand 20715 states and 26345 transitions. Second operand has 32 states, 32 states have (on average 7.65625) internal successors, (245), 31 states have internal predecessors, (245), 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 16:05:03,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:03,612 INFO L93 Difference]: Finished difference Result 138916 states and 173686 transitions. [2024-11-08 16:05:03,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2024-11-08 16:05:03,613 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.65625) internal successors, (245), 31 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-08 16:05:03,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:03,843 INFO L225 Difference]: With dead ends: 138916 [2024-11-08 16:05:03,843 INFO L226 Difference]: Without dead ends: 127910 [2024-11-08 16:05:03,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7862 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=4372, Invalid=18580, Unknown=0, NotChecked=0, Total=22952 [2024-11-08 16:05:03,869 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 5906 mSDsluCounter, 5841 mSDsCounter, 0 mSdLazyCounter, 5795 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5906 SdHoareTripleChecker+Valid, 6177 SdHoareTripleChecker+Invalid, 5917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 5795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:03,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5906 Valid, 6177 Invalid, 5917 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 5795 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-08 16:05:03,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127910 states. [2024-11-08 16:05:04,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127910 to 21270. [2024-11-08 16:05:04,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21270 states, 21269 states have (on average 1.2706286144153462) internal successors, (27025), 21269 states have internal predecessors, (27025), 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 16:05:04,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21270 states to 21270 states and 27025 transitions. [2024-11-08 16:05:04,758 INFO L78 Accepts]: Start accepts. Automaton has 21270 states and 27025 transitions. Word has length 97 [2024-11-08 16:05:04,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:04,759 INFO L471 AbstractCegarLoop]: Abstraction has 21270 states and 27025 transitions. [2024-11-08 16:05:04,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.65625) internal successors, (245), 31 states have internal predecessors, (245), 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 16:05:04,759 INFO L276 IsEmpty]: Start isEmpty. Operand 21270 states and 27025 transitions. [2024-11-08 16:05:04,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:05:04,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:04,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:04,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:05:04,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:04,969 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:04,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:04,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1181943881, now seen corresponding path program 1 times [2024-11-08 16:05:04,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:04,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116274174] [2024-11-08 16:05:04,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:04,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:05,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:05,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116274174] [2024-11-08 16:05:05,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116274174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:05,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683839312] [2024-11-08 16:05:05,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:05,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:05,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:05,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:05,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:05:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:06,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:05:06,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:07,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:07,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:09,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683839312] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:09,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:09,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 14] total 30 [2024-11-08 16:05:09,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146985173] [2024-11-08 16:05:09,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:09,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:05:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:09,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:05:09,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:05:09,776 INFO L87 Difference]: Start difference. First operand 21270 states and 27025 transitions. Second operand has 31 states, 31 states have (on average 8.161290322580646) internal successors, (253), 30 states have internal predecessors, (253), 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 16:05:28,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:28,404 INFO L93 Difference]: Finished difference Result 150488 states and 189226 transitions. [2024-11-08 16:05:28,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-08 16:05:28,404 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 8.161290322580646) internal successors, (253), 30 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-08 16:05:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:28,580 INFO L225 Difference]: With dead ends: 150488 [2024-11-08 16:05:28,580 INFO L226 Difference]: Without dead ends: 139178 [2024-11-08 16:05:28,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20805 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=7668, Invalid=45002, Unknown=0, NotChecked=0, Total=52670 [2024-11-08 16:05:28,614 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 8998 mSDsluCounter, 4842 mSDsCounter, 0 mSdLazyCounter, 5197 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8998 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 5360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 5197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:28,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8998 Valid, 5179 Invalid, 5360 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [163 Valid, 5197 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 16:05:28,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139178 states. [2024-11-08 16:05:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139178 to 45600. [2024-11-08 16:05:29,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45600 states, 45599 states have (on average 1.2727910699796048) internal successors, (58038), 45599 states have internal predecessors, (58038), 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 16:05:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45600 states to 45600 states and 58038 transitions. [2024-11-08 16:05:29,573 INFO L78 Accepts]: Start accepts. Automaton has 45600 states and 58038 transitions. Word has length 97 [2024-11-08 16:05:29,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:29,574 INFO L471 AbstractCegarLoop]: Abstraction has 45600 states and 58038 transitions. [2024-11-08 16:05:29,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.161290322580646) internal successors, (253), 30 states have internal predecessors, (253), 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 16:05:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 45600 states and 58038 transitions. [2024-11-08 16:05:29,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:05:29,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:29,585 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:29,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:05:29,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:29,786 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:29,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1555869417, now seen corresponding path program 1 times [2024-11-08 16:05:29,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:29,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626539853] [2024-11-08 16:05:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:29,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:30,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:30,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626539853] [2024-11-08 16:05:30,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626539853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:30,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754557749] [2024-11-08 16:05:30,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:30,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:30,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:30,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:30,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:05:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:30,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:05:30,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:31,778 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:31,778 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:05:31,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754557749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:31,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:05:31,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5] total 17 [2024-11-08 16:05:31,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032819760] [2024-11-08 16:05:31,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:31,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:05:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:31,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:05:31,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:05:31,780 INFO L87 Difference]: Start difference. First operand 45600 states and 58038 transitions. Second operand has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:34,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:34,500 INFO L93 Difference]: Finished difference Result 137631 states and 174579 transitions. [2024-11-08 16:05:34,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-08 16:05:34,501 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-08 16:05:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:34,623 INFO L225 Difference]: With dead ends: 137631 [2024-11-08 16:05:34,623 INFO L226 Difference]: Without dead ends: 118718 [2024-11-08 16:05:34,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=408, Invalid=1754, Unknown=0, NotChecked=0, Total=2162 [2024-11-08 16:05:34,656 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 1605 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 2394 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:34,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 2753 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2394 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 16:05:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118718 states. [2024-11-08 16:05:35,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118718 to 72562. [2024-11-08 16:05:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72562 states, 72561 states have (on average 1.2742244456388419) internal successors, (92459), 72561 states have internal predecessors, (92459), 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 16:05:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72562 states to 72562 states and 92459 transitions. [2024-11-08 16:05:36,173 INFO L78 Accepts]: Start accepts. Automaton has 72562 states and 92459 transitions. Word has length 97 [2024-11-08 16:05:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:36,173 INFO L471 AbstractCegarLoop]: Abstraction has 72562 states and 92459 transitions. [2024-11-08 16:05:36,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.928571428571429) internal successors, (97), 13 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 72562 states and 92459 transitions. [2024-11-08 16:05:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 16:05:36,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:36,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:36,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:05:36,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:36,387 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:36,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:36,387 INFO L85 PathProgramCache]: Analyzing trace with hash 895493892, now seen corresponding path program 1 times [2024-11-08 16:05:36,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:36,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361572894] [2024-11-08 16:05:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:36,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:05:36,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:36,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361572894] [2024-11-08 16:05:36,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361572894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:36,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:36,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:36,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659644509] [2024-11-08 16:05:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:36,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:36,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:36,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:36,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:36,458 INFO L87 Difference]: Start difference. First operand 72562 states and 92459 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 16:05:37,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:37,368 INFO L93 Difference]: Finished difference Result 148867 states and 189978 transitions. [2024-11-08 16:05:37,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:37,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 98 [2024-11-08 16:05:37,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:37,462 INFO L225 Difference]: With dead ends: 148867 [2024-11-08 16:05:37,462 INFO L226 Difference]: Without dead ends: 77884 [2024-11-08 16:05:37,495 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 16:05:37,495 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 159 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:37,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 203 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:37,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77884 states. [2024-11-08 16:05:38,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77884 to 71586. [2024-11-08 16:05:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71586 states, 71585 states have (on average 1.2586994482084235) internal successors, (90104), 71585 states have internal predecessors, (90104), 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 16:05:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71586 states to 71586 states and 90104 transitions. [2024-11-08 16:05:39,045 INFO L78 Accepts]: Start accepts. Automaton has 71586 states and 90104 transitions. Word has length 98 [2024-11-08 16:05:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:39,045 INFO L471 AbstractCegarLoop]: Abstraction has 71586 states and 90104 transitions. [2024-11-08 16:05:39,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 16:05:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 71586 states and 90104 transitions. [2024-11-08 16:05:39,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 16:05:39,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:39,054 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:39,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:05:39,054 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:39,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1457480844, now seen corresponding path program 1 times [2024-11-08 16:05:39,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310138156] [2024-11-08 16:05:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:39,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:39,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:39,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310138156] [2024-11-08 16:05:39,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310138156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:39,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291769309] [2024-11-08 16:05:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:39,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:39,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:39,369 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:39,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:05:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:39,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 16:05:39,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:40,093 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:40,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:40,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291769309] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:40,966 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:40,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 8] total 17 [2024-11-08 16:05:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633608557] [2024-11-08 16:05:40,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:40,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 16:05:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:40,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 16:05:40,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:05:40,973 INFO L87 Difference]: Start difference. First operand 71586 states and 90104 transitions. Second operand has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:42,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:42,890 INFO L93 Difference]: Finished difference Result 243433 states and 307589 transitions. [2024-11-08 16:05:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 16:05:42,891 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-08 16:05:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:43,135 INFO L225 Difference]: With dead ends: 243433 [2024-11-08 16:05:43,136 INFO L226 Difference]: Without dead ends: 173634 [2024-11-08 16:05:43,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=472, Invalid=1420, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 16:05:43,196 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 2858 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 2001 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:43,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 2001 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:05:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173634 states. [2024-11-08 16:05:45,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173634 to 133081. [2024-11-08 16:05:45,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133081 states, 133080 states have (on average 1.2636759843703036) internal successors, (168170), 133080 states have internal predecessors, (168170), 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 16:05:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133081 states to 133081 states and 168170 transitions. [2024-11-08 16:05:45,413 INFO L78 Accepts]: Start accepts. Automaton has 133081 states and 168170 transitions. Word has length 98 [2024-11-08 16:05:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:45,413 INFO L471 AbstractCegarLoop]: Abstraction has 133081 states and 168170 transitions. [2024-11-08 16:05:45,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 14.588235294117647) internal successors, (248), 17 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 133081 states and 168170 transitions. [2024-11-08 16:05:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:05:45,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:45,433 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:45,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:05:45,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-08 16:05:45,638 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:45,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1268093490, now seen corresponding path program 1 times [2024-11-08 16:05:45,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:45,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377786889] [2024-11-08 16:05:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:45,776 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:45,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377786889] [2024-11-08 16:05:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377786889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:45,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:45,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:05:45,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329595989] [2024-11-08 16:05:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:45,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:05:45,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:05:45,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:45,779 INFO L87 Difference]: Start difference. First operand 133081 states and 168170 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 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 16:05:47,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:47,420 INFO L93 Difference]: Finished difference Result 264211 states and 333470 transitions. [2024-11-08 16:05:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:05:47,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 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 16:05:47,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:47,644 INFO L225 Difference]: With dead ends: 264211 [2024-11-08 16:05:47,644 INFO L226 Difference]: Without dead ends: 132305 [2024-11-08 16:05:47,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:05:47,718 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 377 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:47,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 348 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:05:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132305 states. [2024-11-08 16:05:49,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132305 to 123775. [2024-11-08 16:05:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123775 states, 123774 states have (on average 1.2435244881800702) internal successors, (153916), 123774 states have internal predecessors, (153916), 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 16:05:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123775 states to 123775 states and 153916 transitions. [2024-11-08 16:05:49,950 INFO L78 Accepts]: Start accepts. Automaton has 123775 states and 153916 transitions. Word has length 107 [2024-11-08 16:05:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:49,951 INFO L471 AbstractCegarLoop]: Abstraction has 123775 states and 153916 transitions. [2024-11-08 16:05:49,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 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 16:05:49,951 INFO L276 IsEmpty]: Start isEmpty. Operand 123775 states and 153916 transitions. [2024-11-08 16:05:49,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:05:49,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:49,973 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:49,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 16:05:49,974 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:49,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:49,974 INFO L85 PathProgramCache]: Analyzing trace with hash 465454406, now seen corresponding path program 1 times [2024-11-08 16:05:49,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:49,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448829220] [2024-11-08 16:05:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:49,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:50,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:50,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448829220] [2024-11-08 16:05:50,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448829220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:50,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307047482] [2024-11-08 16:05:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:50,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:50,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:50,140 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:50,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:05:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:50,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:05:50,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:50,749 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:50,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307047482] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:50,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:50,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 16:05:50,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942778265] [2024-11-08 16:05:50,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:50,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:05:50,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:50,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:05:50,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:05:50,965 INFO L87 Difference]: Start difference. First operand 123775 states and 153916 transitions. Second operand has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 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 16:05:52,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:52,369 INFO L93 Difference]: Finished difference Result 245656 states and 304935 transitions. [2024-11-08 16:05:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:52,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 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 16:05:52,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:52,553 INFO L225 Difference]: With dead ends: 245656 [2024-11-08 16:05:52,553 INFO L226 Difference]: Without dead ends: 123026 [2024-11-08 16:05:52,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:05:52,624 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 1471 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:52,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1471 Valid, 817 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:05:52,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123026 states. [2024-11-08 16:05:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123026 to 110832. [2024-11-08 16:05:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110832 states, 110831 states have (on average 1.2212648085824362) internal successors, (135354), 110831 states have internal predecessors, (135354), 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 16:05:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110832 states to 110832 states and 135354 transitions. [2024-11-08 16:05:55,526 INFO L78 Accepts]: Start accepts. Automaton has 110832 states and 135354 transitions. Word has length 107 [2024-11-08 16:05:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:55,527 INFO L471 AbstractCegarLoop]: Abstraction has 110832 states and 135354 transitions. [2024-11-08 16:05:55,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.071428571428573) internal successors, (295), 14 states have internal predecessors, (295), 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 16:05:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 110832 states and 135354 transitions. [2024-11-08 16:05:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:05:55,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:55,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:55,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:05:55,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-08 16:05:55,738 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:55,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash 505735159, now seen corresponding path program 1 times [2024-11-08 16:05:55,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:55,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191276759] [2024-11-08 16:05:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:55,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:55,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191276759] [2024-11-08 16:05:55,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191276759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086471472] [2024-11-08 16:05:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:55,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:55,884 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:55,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:05:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:56,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 16:05:56,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:56,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:56,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086471472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:56,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:56,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2024-11-08 16:05:56,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808203509] [2024-11-08 16:05:56,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:56,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:05:56,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:05:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:05:56,658 INFO L87 Difference]: Start difference. First operand 110832 states and 135354 transitions. Second operand has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 14 states have internal predecessors, (285), 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 16:05:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:57,782 INFO L93 Difference]: Finished difference Result 247077 states and 300775 transitions. [2024-11-08 16:05:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:05:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 14 states have internal predecessors, (285), 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 16:05:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:57,999 INFO L225 Difference]: With dead ends: 247077 [2024-11-08 16:05:57,999 INFO L226 Difference]: Without dead ends: 137755 [2024-11-08 16:05:58,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:05:58,554 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1636 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:58,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1636 Valid, 777 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:05:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137755 states. [2024-11-08 16:06:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137755 to 121090. [2024-11-08 16:06:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121090 states, 121089 states have (on average 1.2084664998472199) internal successors, (146332), 121089 states have internal predecessors, (146332), 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 16:06:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121090 states to 121090 states and 146332 transitions. [2024-11-08 16:06:00,367 INFO L78 Accepts]: Start accepts. Automaton has 121090 states and 146332 transitions. Word has length 107 [2024-11-08 16:06:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:06:00,367 INFO L471 AbstractCegarLoop]: Abstraction has 121090 states and 146332 transitions. [2024-11-08 16:06:00,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.357142857142858) internal successors, (285), 14 states have internal predecessors, (285), 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 16:06:00,368 INFO L276 IsEmpty]: Start isEmpty. Operand 121090 states and 146332 transitions. [2024-11-08 16:06:00,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 16:06:00,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:06:00,385 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:06:00,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:06:00,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 16:06:00,586 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:06:00,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:06:00,587 INFO L85 PathProgramCache]: Analyzing trace with hash 84880972, now seen corresponding path program 1 times [2024-11-08 16:06:00,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:06:00,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097176952] [2024-11-08 16:06:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:00,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:06:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:06:00,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:06:00,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097176952] [2024-11-08 16:06:00,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097176952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:06:00,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:06:00,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:06:00,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600084855] [2024-11-08 16:06:00,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:06:00,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:06:00,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:06:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:06:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:06:00,707 INFO L87 Difference]: Start difference. First operand 121090 states and 146332 transitions. 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 16:06:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:06:02,201 INFO L93 Difference]: Finished difference Result 213939 states and 257240 transitions. [2024-11-08 16:06:02,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:06:02,201 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 110 [2024-11-08 16:06:02,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:06:02,460 INFO L225 Difference]: With dead ends: 213939 [2024-11-08 16:06:02,460 INFO L226 Difference]: Without dead ends: 172233 [2024-11-08 16:06:02,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:06:02,511 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 115 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:06:02,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 456 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:06:02,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172233 states. [2024-11-08 16:06:04,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172233 to 138617. [2024-11-08 16:06:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138617 states, 138616 states have (on average 1.2080423616321347) internal successors, (167454), 138616 states have internal predecessors, (167454), 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 16:06:05,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138617 states to 138617 states and 167454 transitions. [2024-11-08 16:06:05,052 INFO L78 Accepts]: Start accepts. Automaton has 138617 states and 167454 transitions. Word has length 110 [2024-11-08 16:06:05,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:06:05,052 INFO L471 AbstractCegarLoop]: Abstraction has 138617 states and 167454 transitions. [2024-11-08 16:06:05,053 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 16:06:05,053 INFO L276 IsEmpty]: Start isEmpty. Operand 138617 states and 167454 transitions. [2024-11-08 16:06:05,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 16:06:05,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:06:05,069 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:06:05,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 16:06:05,069 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:06:05,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:06:05,069 INFO L85 PathProgramCache]: Analyzing trace with hash 721442887, now seen corresponding path program 1 times [2024-11-08 16:06:05,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:06:05,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985531612] [2024-11-08 16:06:05,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:05,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:06:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:06,517 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:06,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:06:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985531612] [2024-11-08 16:06:06,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985531612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:06:06,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479019383] [2024-11-08 16:06:06,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:06,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:06:06,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:06:06,520 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:06:06,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:06:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:06,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 16:06:06,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:06:07,763 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:07,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:06:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:08,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479019383] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:06:08,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:06:08,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 31 [2024-11-08 16:06:08,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088359472] [2024-11-08 16:06:08,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:06:08,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:06:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:06:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:06:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:06:08,615 INFO L87 Difference]: Start difference. First operand 138617 states and 167454 transitions. Second operand has 31 states, 31 states have (on average 8.064516129032258) internal successors, (250), 31 states have internal predecessors, (250), 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 16:06:10,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:06:10,731 INFO L93 Difference]: Finished difference Result 246525 states and 297237 transitions. [2024-11-08 16:06:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 16:06:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 8.064516129032258) internal successors, (250), 31 states have internal predecessors, (250), 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 110 [2024-11-08 16:06:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:06:10,984 INFO L225 Difference]: With dead ends: 246525 [2024-11-08 16:06:10,984 INFO L226 Difference]: Without dead ends: 226215 [2024-11-08 16:06:11,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=304, Invalid=1676, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 16:06:11,030 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 1403 mSDsluCounter, 4864 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:06:11,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 5151 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:06:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226215 states. [2024-11-08 16:06:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226215 to 138639. [2024-11-08 16:06:14,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138639 states, 138638 states have (on average 1.2080093480863832) internal successors, (167476), 138638 states have internal predecessors, (167476), 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 16:06:14,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138639 states to 138639 states and 167476 transitions. [2024-11-08 16:06:14,195 INFO L78 Accepts]: Start accepts. Automaton has 138639 states and 167476 transitions. Word has length 110 [2024-11-08 16:06:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:06:14,195 INFO L471 AbstractCegarLoop]: Abstraction has 138639 states and 167476 transitions. [2024-11-08 16:06:14,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.064516129032258) internal successors, (250), 31 states have internal predecessors, (250), 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 16:06:14,195 INFO L276 IsEmpty]: Start isEmpty. Operand 138639 states and 167476 transitions. [2024-11-08 16:06:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 16:06:14,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:06:14,206 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:06:14,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:06:14,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56b4148d-a838-4d02-bc7c-47185db606ea/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 16:06:14,407 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:06:14,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:06:14,408 INFO L85 PathProgramCache]: Analyzing trace with hash 480825969, now seen corresponding path program 1 times [2024-11-08 16:06:14,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:06:14,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420150622] [2024-11-08 16:06:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:06:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:06:14,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:06:14,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420150622] [2024-11-08 16:06:14,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420150622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:06:14,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:06:14,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:06:14,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953889575] [2024-11-08 16:06:14,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:06:14,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:06:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:06:14,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:06:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:06:14,514 INFO L87 Difference]: Start difference. First operand 138639 states and 167476 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 16:06:15,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:06:15,294 INFO L93 Difference]: Finished difference Result 222855 states and 269028 transitions. [2024-11-08 16:06:15,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:06:15,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 110 [2024-11-08 16:06:15,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:06:15,615 INFO L225 Difference]: With dead ends: 222855 [2024-11-08 16:06:15,616 INFO L226 Difference]: Without dead ends: 186671 [2024-11-08 16:06:15,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:06:15,673 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 128 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:06:15,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 429 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:06:15,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186671 states.