./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/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_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/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_c98dac27-db15-4642-89e0-962c33b9e580/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 3a0c0951c24cd2d1054cd8a6003e754f5172d11faf0263a8076904cbc4e7d830 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:36:37,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:36:37,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:36:37,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:36:37,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:36:37,555 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:36:37,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:36:37,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:36:37,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:36:37,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:36:37,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:36:37,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:36:37,564 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:36:37,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:36:37,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:36:37,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:36:37,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:36:37,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:36:37,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:36:37,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:36:37,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:36:37,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:36:37,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:36:37,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:36:37,576 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:36:37,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:36:37,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:36:37,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:36:37,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:36:37,578 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:36:37,578 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:36:37,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:36:37,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:36:37,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:36:37,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:36:37,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:36:37,584 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:36:37,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:36:37,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:36:37,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:36:37,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:36:37,586 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:36:37,586 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_c98dac27-db15-4642-89e0-962c33b9e580/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a0c0951c24cd2d1054cd8a6003e754f5172d11faf0263a8076904cbc4e7d830 [2024-11-08 16:36:37,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:36:38,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:36:38,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:36:38,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:36:38,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:36:38,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c Unable to find full path for "g++" [2024-11-08 16:36:39,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:36:40,549 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:36:40,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c [2024-11-08 16:36:40,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/data/70e1b34a8/1813609028c446e28d6976a725fe81c4/FLAGe98279c26 [2024-11-08 16:36:40,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/data/70e1b34a8/1813609028c446e28d6976a725fe81c4 [2024-11-08 16:36:40,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:36:40,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:36:40,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:36:40,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:36:40,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:36:40,629 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:36:40" (1/1) ... [2024-11-08 16:36:40,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e326094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:40, skipping insertion in model container [2024-11-08 16:36:40,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:36:40" (1/1) ... [2024-11-08 16:36:40,791 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:36:41,293 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_c98dac27-db15-4642-89e0-962c33b9e580/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c[11677,11690] [2024-11-08 16:36:41,368 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_c98dac27-db15-4642-89e0-962c33b9e580/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c[17232,17245] [2024-11-08 16:36:42,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:36:42,566 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:36:42,630 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_c98dac27-db15-4642-89e0-962c33b9e580/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c[11677,11690] [2024-11-08 16:36:42,643 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_c98dac27-db15-4642-89e0-962c33b9e580/sv-benchmarks/c/combinations/pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c[17232,17245] [2024-11-08 16:36:43,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:36:43,353 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:36:43,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43 WrapperNode [2024-11-08 16:36:43,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:36:43,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:36:43,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:36:43,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:36:43,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:43,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:43,799 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5098 [2024-11-08 16:36:43,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:36:43,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:36:43,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:36:43,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:36:43,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:43,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:43,858 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,030 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 16:36:44,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,208 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:36:44,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:36:44,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:36:44,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:36:44,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (1/1) ... [2024-11-08 16:36:44,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:36:44,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:36:44,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:36:44,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:36:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:36:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:36:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:36:44,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:36:44,620 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:36:44,624 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:36:50,473 INFO L? ?]: Removed 745 outVars from TransFormulas that were not future-live. [2024-11-08 16:36:50,473 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:36:50,511 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:36:50,511 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:36:50,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:36:50 BoogieIcfgContainer [2024-11-08 16:36:50,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:36:50,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:36:50,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:36:50,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:36:50,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:36:40" (1/3) ... [2024-11-08 16:36:50,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05c4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:36:50, skipping insertion in model container [2024-11-08 16:36:50,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:36:43" (2/3) ... [2024-11-08 16:36:50,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e05c4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:36:50, skipping insertion in model container [2024-11-08 16:36:50,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:36:50" (3/3) ... [2024-11-08 16:36:50,522 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals+Problem12_label01.c [2024-11-08 16:36:50,543 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:36:50,543 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:36:50,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:36:50,665 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;@1db19839, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:36:50,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:36:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 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 16:36:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 16:36:50,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:50,686 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] [2024-11-08 16:36:50,687 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:50,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash -971902402, now seen corresponding path program 1 times [2024-11-08 16:36:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474472979] [2024-11-08 16:36:50,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:50,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:51,016 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 16:36:51,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:51,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474472979] [2024-11-08 16:36:51,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474472979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:51,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:51,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:36:51,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619639580] [2024-11-08 16:36:51,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:51,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:36:51,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:36:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:36:51,052 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 0 states have call successors, (0), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 16:36:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:51,142 INFO L93 Difference]: Finished difference Result 1763 states and 3346 transitions. [2024-11-08 16:36:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:36:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 16:36:51,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:51,166 INFO L225 Difference]: With dead ends: 1763 [2024-11-08 16:36:51,167 INFO L226 Difference]: Without dead ends: 834 [2024-11-08 16:36:51,173 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:36:51,178 INFO L432 NwaCegarLoop]: 1643 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:51,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:36:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-08 16:36:51,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-11-08 16:36:51,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8930288461538463) internal successors, (1575), 833 states have internal predecessors, (1575), 0 states have call successors, (0), 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 16:36:51,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1575 transitions. [2024-11-08 16:36:51,294 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1575 transitions. Word has length 25 [2024-11-08 16:36:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:51,294 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1575 transitions. [2024-11-08 16:36:51,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 16:36:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1575 transitions. [2024-11-08 16:36:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 16:36:51,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:51,299 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] [2024-11-08 16:36:51,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:36:51,299 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:51,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1634121152, now seen corresponding path program 1 times [2024-11-08 16:36:51,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:51,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999158736] [2024-11-08 16:36:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:51,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:51,610 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 16:36:51,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:51,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999158736] [2024-11-08 16:36:51,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999158736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:51,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:36:51,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666273444] [2024-11-08 16:36:51,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:51,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:36:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:36:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:36:51,615 INFO L87 Difference]: Start difference. First operand 834 states and 1575 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 16:36:51,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:36:51,767 INFO L93 Difference]: Finished difference Result 881 states and 1647 transitions. [2024-11-08 16:36:51,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:36:51,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-08 16:36:51,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:36:51,772 INFO L225 Difference]: With dead ends: 881 [2024-11-08 16:36:51,773 INFO L226 Difference]: Without dead ends: 834 [2024-11-08 16:36:51,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:36:51,775 INFO L432 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:36:51,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:36:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-08 16:36:51,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 834. [2024-11-08 16:36:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 832 states have (on average 1.8557692307692308) internal successors, (1544), 833 states have internal predecessors, (1544), 0 states have call successors, (0), 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 16:36:51,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1544 transitions. [2024-11-08 16:36:51,823 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1544 transitions. Word has length 25 [2024-11-08 16:36:51,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:36:51,824 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1544 transitions. [2024-11-08 16:36:51,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 16:36:51,824 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1544 transitions. [2024-11-08 16:36:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-08 16:36:51,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:36:51,825 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] [2024-11-08 16:36:51,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:36:51,826 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:36:51,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:36:51,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1995131308, now seen corresponding path program 1 times [2024-11-08 16:36:51,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:36:51,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335156974] [2024-11-08 16:36:51,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:36:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:36:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:36:52,099 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 16:36:52,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:36:52,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335156974] [2024-11-08 16:36:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335156974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:36:52,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:36:52,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:36:52,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731156] [2024-11-08 16:36:52,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:36:52,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:36:52,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:36:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:36:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:36:52,102 INFO L87 Difference]: Start difference. First operand 834 states and 1544 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 16:37:01,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:01,336 INFO L93 Difference]: Finished difference Result 3089 states and 5853 transitions. [2024-11-08 16:37:01,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:37:01,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2024-11-08 16:37:01,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:01,345 INFO L225 Difference]: With dead ends: 3089 [2024-11-08 16:37:01,346 INFO L226 Difference]: Without dead ends: 2336 [2024-11-08 16:37:01,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:37:01,349 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 2427 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:01,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 798 Invalid, 6507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-08 16:37:01,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2024-11-08 16:37:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2024-11-08 16:37:01,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2334 states have (on average 1.5672664952870607) internal successors, (3658), 2335 states have internal predecessors, (3658), 0 states have call successors, (0), 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 16:37:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3658 transitions. [2024-11-08 16:37:01,407 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3658 transitions. Word has length 48 [2024-11-08 16:37:01,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:01,408 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 3658 transitions. [2024-11-08 16:37:01,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 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 16:37:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3658 transitions. [2024-11-08 16:37:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 16:37:01,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:01,410 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] [2024-11-08 16:37:01,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:37:01,410 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:01,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash -860264311, now seen corresponding path program 1 times [2024-11-08 16:37:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:01,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903122398] [2024-11-08 16:37:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:01,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:01,679 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 16:37:01,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:01,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903122398] [2024-11-08 16:37:01,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903122398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:01,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:01,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801072630] [2024-11-08 16:37:01,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:01,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:01,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:01,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:01,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:01,682 INFO L87 Difference]: Start difference. First operand 2336 states and 3658 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 16:37:01,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:01,990 INFO L93 Difference]: Finished difference Result 2766 states and 4338 transitions. [2024-11-08 16:37:01,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:37:01,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-08 16:37:01,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:02,001 INFO L225 Difference]: With dead ends: 2766 [2024-11-08 16:37:02,002 INFO L226 Difference]: Without dead ends: 2723 [2024-11-08 16:37:02,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:37:02,007 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 7962 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7962 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:02,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7962 Valid, 2767 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-08 16:37:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2377. [2024-11-08 16:37:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 2375 states have (on average 1.567578947368421) internal successors, (3723), 2376 states have internal predecessors, (3723), 0 states have call successors, (0), 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 16:37:02,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3723 transitions. [2024-11-08 16:37:02,120 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3723 transitions. Word has length 55 [2024-11-08 16:37:02,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:02,122 INFO L471 AbstractCegarLoop]: Abstraction has 2377 states and 3723 transitions. [2024-11-08 16:37:02,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 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 16:37:02,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3723 transitions. [2024-11-08 16:37:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:37:02,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:02,129 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] [2024-11-08 16:37:02,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:37:02,129 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:02,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash 798988473, now seen corresponding path program 1 times [2024-11-08 16:37:02,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321895910] [2024-11-08 16:37:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:02,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,225 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 16:37:02,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:02,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321895910] [2024-11-08 16:37:02,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321895910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:02,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:02,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:02,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832063330] [2024-11-08 16:37:02,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:02,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:02,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:02,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:02,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:02,228 INFO L87 Difference]: Start difference. First operand 2377 states and 3723 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 16:37:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:02,274 INFO L93 Difference]: Finished difference Result 2534 states and 3970 transitions. [2024-11-08 16:37:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:02,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 16:37:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:02,284 INFO L225 Difference]: With dead ends: 2534 [2024-11-08 16:37:02,284 INFO L226 Difference]: Without dead ends: 2450 [2024-11-08 16:37:02,288 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 16:37:02,290 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 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 16:37:02,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2024-11-08 16:37:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2448. [2024-11-08 16:37:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2446 states have (on average 1.5670482420278005) internal successors, (3833), 2447 states have internal predecessors, (3833), 0 states have call successors, (0), 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 16:37:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3833 transitions. [2024-11-08 16:37:02,346 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3833 transitions. Word has length 57 [2024-11-08 16:37:02,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:02,348 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 3833 transitions. [2024-11-08 16:37:02,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 16:37:02,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3833 transitions. [2024-11-08 16:37:02,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-08 16:37:02,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:02,350 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] [2024-11-08 16:37:02,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:37:02,350 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:02,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:02,354 INFO L85 PathProgramCache]: Analyzing trace with hash 865481985, now seen corresponding path program 1 times [2024-11-08 16:37:02,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:02,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212772275] [2024-11-08 16:37:02,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:02,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:02,765 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 16:37:02,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:02,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212772275] [2024-11-08 16:37:02,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212772275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:02,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:02,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:02,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410878839] [2024-11-08 16:37:02,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:02,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:02,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:02,768 INFO L87 Difference]: Start difference. First operand 2448 states and 3833 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 16:37:03,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:03,060 INFO L93 Difference]: Finished difference Result 2605 states and 4077 transitions. [2024-11-08 16:37:03,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-08 16:37:03,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:03,077 INFO L225 Difference]: With dead ends: 2605 [2024-11-08 16:37:03,077 INFO L226 Difference]: Without dead ends: 2450 [2024-11-08 16:37:03,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:37:03,082 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 4479 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4479 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:03,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4479 Valid, 1797 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:03,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2024-11-08 16:37:03,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2448. [2024-11-08 16:37:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2446 states have (on average 1.5662305805396566) internal successors, (3831), 2447 states have internal predecessors, (3831), 0 states have call successors, (0), 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 16:37:03,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3831 transitions. [2024-11-08 16:37:03,154 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3831 transitions. Word has length 57 [2024-11-08 16:37:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:03,155 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 3831 transitions. [2024-11-08 16:37:03,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 16:37:03,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3831 transitions. [2024-11-08 16:37:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 16:37:03,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:03,156 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:03,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:37:03,157 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:03,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:03,157 INFO L85 PathProgramCache]: Analyzing trace with hash 645414680, now seen corresponding path program 1 times [2024-11-08 16:37:03,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:03,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206386777] [2024-11-08 16:37:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:03,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:03,491 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 16:37:03,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:03,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206386777] [2024-11-08 16:37:03,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206386777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:03,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:03,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:37:03,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430512334] [2024-11-08 16:37:03,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:03,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:37:03,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:03,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:37:03,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:37:03,496 INFO L87 Difference]: Start difference. First operand 2448 states and 3831 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 16:37:03,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:03,588 INFO L93 Difference]: Finished difference Result 2456 states and 3840 transitions. [2024-11-08 16:37:03,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:37:03,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 16:37:03,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:03,597 INFO L225 Difference]: With dead ends: 2456 [2024-11-08 16:37:03,597 INFO L226 Difference]: Without dead ends: 2454 [2024-11-08 16:37:03,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:37:03,599 INFO L432 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:03,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:03,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2024-11-08 16:37:03,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 2454. [2024-11-08 16:37:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2454 states, 2452 states have (on average 1.564437194127243) internal successors, (3836), 2453 states have internal predecessors, (3836), 0 states have call successors, (0), 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 16:37:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2454 states to 2454 states and 3836 transitions. [2024-11-08 16:37:03,654 INFO L78 Accepts]: Start accepts. Automaton has 2454 states and 3836 transitions. Word has length 58 [2024-11-08 16:37:03,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:03,654 INFO L471 AbstractCegarLoop]: Abstraction has 2454 states and 3836 transitions. [2024-11-08 16:37:03,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 16:37:03,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2454 states and 3836 transitions. [2024-11-08 16:37:03,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:37:03,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:03,656 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 16:37:03,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:37:03,656 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:03,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:03,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1093534783, now seen corresponding path program 1 times [2024-11-08 16:37:03,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:03,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606076725] [2024-11-08 16:37:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:03,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:03,732 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 16:37:03,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:03,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606076725] [2024-11-08 16:37:03,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606076725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:03,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:03,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:03,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495909917] [2024-11-08 16:37:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:03,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:03,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:03,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:03,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:03,735 INFO L87 Difference]: Start difference. First operand 2454 states and 3836 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:03,785 INFO L93 Difference]: Finished difference Result 2629 states and 4102 transitions. [2024-11-08 16:37:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:03,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:03,795 INFO L225 Difference]: With dead ends: 2629 [2024-11-08 16:37:03,796 INFO L226 Difference]: Without dead ends: 2539 [2024-11-08 16:37:03,797 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 16:37:03,798 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:03,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2024-11-08 16:37:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2537. [2024-11-08 16:37:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2535 states have (on average 1.5621301775147929) internal successors, (3960), 2536 states have internal predecessors, (3960), 0 states have call successors, (0), 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 16:37:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 3960 transitions. [2024-11-08 16:37:03,860 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 3960 transitions. Word has length 59 [2024-11-08 16:37:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:03,861 INFO L471 AbstractCegarLoop]: Abstraction has 2537 states and 3960 transitions. [2024-11-08 16:37:03,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 3960 transitions. [2024-11-08 16:37:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:37:03,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:03,863 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 16:37:03,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:37:03,863 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:03,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:03,863 INFO L85 PathProgramCache]: Analyzing trace with hash 408583617, now seen corresponding path program 1 times [2024-11-08 16:37:03,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:03,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139644456] [2024-11-08 16:37:03,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:03,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:03,942 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 16:37:03,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:03,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139644456] [2024-11-08 16:37:03,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139644456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:03,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:03,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:03,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329818696] [2024-11-08 16:37:03,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:03,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:03,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:03,946 INFO L87 Difference]: Start difference. First operand 2537 states and 3960 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:03,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:03,997 INFO L93 Difference]: Finished difference Result 2995 states and 4652 transitions. [2024-11-08 16:37:03,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:03,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:04,008 INFO L225 Difference]: With dead ends: 2995 [2024-11-08 16:37:04,008 INFO L226 Difference]: Without dead ends: 2754 [2024-11-08 16:37:04,010 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 16:37:04,013 INFO L432 NwaCegarLoop]: 1588 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:04,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2024-11-08 16:37:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2752. [2024-11-08 16:37:04,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2750 states have (on average 1.5556363636363637) internal successors, (4278), 2751 states have internal predecessors, (4278), 0 states have call successors, (0), 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 16:37:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 4278 transitions. [2024-11-08 16:37:04,145 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 4278 transitions. Word has length 59 [2024-11-08 16:37:04,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:04,146 INFO L471 AbstractCegarLoop]: Abstraction has 2752 states and 4278 transitions. [2024-11-08 16:37:04,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 4278 transitions. [2024-11-08 16:37:04,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:37:04,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:04,147 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 16:37:04,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:37:04,147 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:04,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:04,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1806885183, now seen corresponding path program 1 times [2024-11-08 16:37:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:04,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063130877] [2024-11-08 16:37:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:04,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:04,223 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 16:37:04,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:04,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063130877] [2024-11-08 16:37:04,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063130877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:04,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:04,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:04,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688446289] [2024-11-08 16:37:04,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:04,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:04,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:04,227 INFO L87 Difference]: Start difference. First operand 2752 states and 4278 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:04,279 INFO L93 Difference]: Finished difference Result 3616 states and 5564 transitions. [2024-11-08 16:37:04,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:04,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:04,291 INFO L225 Difference]: With dead ends: 3616 [2024-11-08 16:37:04,291 INFO L226 Difference]: Without dead ends: 3160 [2024-11-08 16:37:04,293 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 16:37:04,294 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:04,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1667 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:04,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2024-11-08 16:37:04,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 3158. [2024-11-08 16:37:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3156 states have (on average 1.5418250950570342) internal successors, (4866), 3157 states have internal predecessors, (4866), 0 states have call successors, (0), 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 16:37:04,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 4866 transitions. [2024-11-08 16:37:04,385 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 4866 transitions. Word has length 59 [2024-11-08 16:37:04,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:04,385 INFO L471 AbstractCegarLoop]: Abstraction has 3158 states and 4866 transitions. [2024-11-08 16:37:04,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 4866 transitions. [2024-11-08 16:37:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:37:04,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:04,387 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 16:37:04,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:37:04,387 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:04,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:04,388 INFO L85 PathProgramCache]: Analyzing trace with hash -25952319, now seen corresponding path program 1 times [2024-11-08 16:37:04,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:04,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024466019] [2024-11-08 16:37:04,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:04,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:04,474 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 16:37:04,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:04,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024466019] [2024-11-08 16:37:04,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024466019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:04,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:04,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:04,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394334561] [2024-11-08 16:37:04,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:04,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:04,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:04,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:04,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:04,476 INFO L87 Difference]: Start difference. First operand 3158 states and 4866 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:04,583 INFO L93 Difference]: Finished difference Result 4786 states and 7244 transitions. [2024-11-08 16:37:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:04,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:04,613 INFO L225 Difference]: With dead ends: 4786 [2024-11-08 16:37:04,613 INFO L226 Difference]: Without dead ends: 3924 [2024-11-08 16:37:04,620 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 16:37:04,620 INFO L432 NwaCegarLoop]: 1584 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:04,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2024-11-08 16:37:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 3922. [2024-11-08 16:37:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3920 states have (on average 1.5168367346938776) internal successors, (5946), 3921 states have internal predecessors, (5946), 0 states have call successors, (0), 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 16:37:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5946 transitions. [2024-11-08 16:37:04,740 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5946 transitions. Word has length 59 [2024-11-08 16:37:04,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:04,741 INFO L471 AbstractCegarLoop]: Abstraction has 3922 states and 5946 transitions. [2024-11-08 16:37:04,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5946 transitions. [2024-11-08 16:37:04,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 16:37:04,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:04,742 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 16:37:04,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:37:04,743 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:04,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash -829678399, now seen corresponding path program 1 times [2024-11-08 16:37:04,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:04,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19408445] [2024-11-08 16:37:04,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:04,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:04,811 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 16:37:04,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:04,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19408445] [2024-11-08 16:37:04,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19408445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:04,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:04,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:04,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902152090] [2024-11-08 16:37:04,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:04,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:04,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:04,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:04,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:04,814 INFO L87 Difference]: Start difference. First operand 3922 states and 5946 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:04,918 INFO L93 Difference]: Finished difference Result 6982 states and 10316 transitions. [2024-11-08 16:37:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:04,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:04,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:04,930 INFO L225 Difference]: With dead ends: 6982 [2024-11-08 16:37:04,930 INFO L226 Difference]: Without dead ends: 5356 [2024-11-08 16:37:04,934 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 16:37:04,934 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:04,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2024-11-08 16:37:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 5354. [2024-11-08 16:37:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 1.4786995515695067) internal successors, (7914), 5353 states have internal predecessors, (7914), 0 states have call successors, (0), 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 16:37:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 7914 transitions. [2024-11-08 16:37:05,094 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 7914 transitions. Word has length 59 [2024-11-08 16:37:05,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:05,095 INFO L471 AbstractCegarLoop]: Abstraction has 5354 states and 7914 transitions. [2024-11-08 16:37:05,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 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 16:37:05,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 7914 transitions. [2024-11-08 16:37:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 16:37:05,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:05,097 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:05,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:37:05,098 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:05,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:05,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1501932416, now seen corresponding path program 1 times [2024-11-08 16:37:05,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:05,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119973685] [2024-11-08 16:37:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:05,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:05,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:37:05,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:05,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119973685] [2024-11-08 16:37:05,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119973685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:05,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:05,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:05,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086532408] [2024-11-08 16:37:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:05,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:05,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:05,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:05,309 INFO L87 Difference]: Start difference. First operand 5354 states and 7914 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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 16:37:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:05,879 INFO L93 Difference]: Finished difference Result 20422 states and 29184 transitions. [2024-11-08 16:37:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:05,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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 79 [2024-11-08 16:37:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:05,913 INFO L225 Difference]: With dead ends: 20422 [2024-11-08 16:37:05,913 INFO L226 Difference]: Without dead ends: 18244 [2024-11-08 16:37:05,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:05,920 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 6312 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 3598 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:05,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 3598 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:05,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18244 states. [2024-11-08 16:37:06,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18244 to 7978. [2024-11-08 16:37:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7978 states, 7976 states have (on average 1.45160481444333) internal successors, (11578), 7977 states have internal predecessors, (11578), 0 states have call successors, (0), 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 16:37:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7978 states to 7978 states and 11578 transitions. [2024-11-08 16:37:06,226 INFO L78 Accepts]: Start accepts. Automaton has 7978 states and 11578 transitions. Word has length 79 [2024-11-08 16:37:06,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:06,227 INFO L471 AbstractCegarLoop]: Abstraction has 7978 states and 11578 transitions. [2024-11-08 16:37:06,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 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 16:37:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 7978 states and 11578 transitions. [2024-11-08 16:37:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 16:37:06,230 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:06,230 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:06,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:37:06,230 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:06,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1290916480, now seen corresponding path program 1 times [2024-11-08 16:37:06,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:06,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850472336] [2024-11-08 16:37:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:06,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:37:06,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:06,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850472336] [2024-11-08 16:37:06,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850472336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:06,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:06,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:06,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16933013] [2024-11-08 16:37:06,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:06,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:06,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:06,442 INFO L87 Difference]: Start difference. First operand 7978 states and 11578 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 16:37:07,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:07,269 INFO L93 Difference]: Finished difference Result 23478 states and 33472 transitions. [2024-11-08 16:37:07,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:07,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 79 [2024-11-08 16:37:07,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:07,316 INFO L225 Difference]: With dead ends: 23478 [2024-11-08 16:37:07,316 INFO L226 Difference]: Without dead ends: 20420 [2024-11-08 16:37:07,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:07,326 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 6359 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:07,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 3623 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:07,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20420 states. [2024-11-08 16:37:07,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20420 to 12122. [2024-11-08 16:37:07,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12122 states, 12120 states have (on average 1.4318481848184819) internal successors, (17354), 12121 states have internal predecessors, (17354), 0 states have call successors, (0), 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 16:37:07,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12122 states to 12122 states and 17354 transitions. [2024-11-08 16:37:07,815 INFO L78 Accepts]: Start accepts. Automaton has 12122 states and 17354 transitions. Word has length 79 [2024-11-08 16:37:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:07,815 INFO L471 AbstractCegarLoop]: Abstraction has 12122 states and 17354 transitions. [2024-11-08 16:37:07,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 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 16:37:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 12122 states and 17354 transitions. [2024-11-08 16:37:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 16:37:07,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:07,818 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:07,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:37:07,819 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:07,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:07,819 INFO L85 PathProgramCache]: Analyzing trace with hash 788582016, now seen corresponding path program 1 times [2024-11-08 16:37:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835767731] [2024-11-08 16:37:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:07,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:07,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 16:37:08,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:08,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835767731] [2024-11-08 16:37:08,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835767731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:08,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:08,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:08,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467954627] [2024-11-08 16:37:08,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:08,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:08,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:08,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:08,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:08,023 INFO L87 Difference]: Start difference. First operand 12122 states and 17354 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 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 16:37:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:08,772 INFO L93 Difference]: Finished difference Result 26534 states and 37744 transitions. [2024-11-08 16:37:08,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:08,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 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 79 [2024-11-08 16:37:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:08,819 INFO L225 Difference]: With dead ends: 26534 [2024-11-08 16:37:08,819 INFO L226 Difference]: Without dead ends: 23476 [2024-11-08 16:37:08,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:08,827 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6406 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6406 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:08,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6406 Valid, 3586 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23476 states. [2024-11-08 16:37:09,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23476 to 15178. [2024-11-08 16:37:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15178 states, 15176 states have (on average 1.4250131787032156) internal successors, (21626), 15177 states have internal predecessors, (21626), 0 states have call successors, (0), 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 16:37:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15178 states to 15178 states and 21626 transitions. [2024-11-08 16:37:09,364 INFO L78 Accepts]: Start accepts. Automaton has 15178 states and 21626 transitions. Word has length 79 [2024-11-08 16:37:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:09,364 INFO L471 AbstractCegarLoop]: Abstraction has 15178 states and 21626 transitions. [2024-11-08 16:37:09,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 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 16:37:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15178 states and 21626 transitions. [2024-11-08 16:37:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 16:37:09,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:09,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:09,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:37:09,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:09,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1725452416, now seen corresponding path program 1 times [2024-11-08 16:37:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:09,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793737504] [2024-11-08 16:37:09,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 16:37:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793737504] [2024-11-08 16:37:09,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793737504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:09,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:09,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:09,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484981267] [2024-11-08 16:37:09,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:09,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:09,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:09,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:09,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:09,584 INFO L87 Difference]: Start difference. First operand 15178 states and 21626 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 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 16:37:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:10,355 INFO L93 Difference]: Finished difference Result 29590 states and 42016 transitions. [2024-11-08 16:37:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:10,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 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 79 [2024-11-08 16:37:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:10,402 INFO L225 Difference]: With dead ends: 29590 [2024-11-08 16:37:10,402 INFO L226 Difference]: Without dead ends: 26532 [2024-11-08 16:37:10,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:10,414 INFO L432 NwaCegarLoop]: 1604 mSDtfsCounter, 6362 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6362 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:10,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6362 Valid, 3614 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:10,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26532 states. [2024-11-08 16:37:11,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26532 to 18234. [2024-11-08 16:37:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18234 states, 18232 states have (on average 1.420469504168495) internal successors, (25898), 18233 states have internal predecessors, (25898), 0 states have call successors, (0), 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 16:37:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18234 states to 18234 states and 25898 transitions. [2024-11-08 16:37:11,139 INFO L78 Accepts]: Start accepts. Automaton has 18234 states and 25898 transitions. Word has length 79 [2024-11-08 16:37:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:11,140 INFO L471 AbstractCegarLoop]: Abstraction has 18234 states and 25898 transitions. [2024-11-08 16:37:11,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 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 16:37:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 18234 states and 25898 transitions. [2024-11-08 16:37:11,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-08 16:37:11,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:11,143 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:11,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:37:11,144 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:11,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:11,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1765788800, now seen corresponding path program 1 times [2024-11-08 16:37:11,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:11,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119836307] [2024-11-08 16:37:11,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:11,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:11,332 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 16:37:11,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:11,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119836307] [2024-11-08 16:37:11,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119836307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:11,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:11,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:37:11,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646251756] [2024-11-08 16:37:11,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:11,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:37:11,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:11,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:37:11,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:37:11,335 INFO L87 Difference]: Start difference. First operand 18234 states and 25898 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 16:37:12,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:12,246 INFO L93 Difference]: Finished difference Result 32646 states and 46288 transitions. [2024-11-08 16:37:12,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:37:12,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 79 [2024-11-08 16:37:12,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:12,301 INFO L225 Difference]: With dead ends: 32646 [2024-11-08 16:37:12,301 INFO L226 Difference]: Without dead ends: 29588 [2024-11-08 16:37:12,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:37:12,312 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 6316 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 3697 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:12,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6316 Valid, 3697 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:37:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29588 states. [2024-11-08 16:37:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29588 to 21290. [2024-11-08 16:37:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.4172303645246147) internal successors, (30170), 21289 states have internal predecessors, (30170), 0 states have call successors, (0), 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 16:37:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 30170 transitions. [2024-11-08 16:37:13,153 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 30170 transitions. Word has length 79 [2024-11-08 16:37:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:13,154 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 30170 transitions. [2024-11-08 16:37:13,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 16:37:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 30170 transitions. [2024-11-08 16:37:13,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-08 16:37:13,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:13,158 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:13,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:37:13,159 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:13,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash 330650730, now seen corresponding path program 1 times [2024-11-08 16:37:13,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:13,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037555801] [2024-11-08 16:37:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:13,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:13,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037555801] [2024-11-08 16:37:13,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037555801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:13,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:13,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640336382] [2024-11-08 16:37:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:13,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:13,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:13,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:13,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:13,280 INFO L87 Difference]: Start difference. First operand 21290 states and 30170 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:37:13,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:13,928 INFO L93 Difference]: Finished difference Result 40286 states and 56748 transitions. [2024-11-08 16:37:13,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:13,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-08 16:37:13,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:13,956 INFO L225 Difference]: With dead ends: 40286 [2024-11-08 16:37:13,956 INFO L226 Difference]: Without dead ends: 21292 [2024-11-08 16:37:13,972 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 16:37:13,973 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:13,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21292 states. [2024-11-08 16:37:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21292 to 21290. [2024-11-08 16:37:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21290 states, 21288 states have (on average 1.403325817361894) internal successors, (29874), 21289 states have internal predecessors, (29874), 0 states have call successors, (0), 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 16:37:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21290 states to 21290 states and 29874 transitions. [2024-11-08 16:37:14,601 INFO L78 Accepts]: Start accepts. Automaton has 21290 states and 29874 transitions. Word has length 80 [2024-11-08 16:37:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:14,602 INFO L471 AbstractCegarLoop]: Abstraction has 21290 states and 29874 transitions. [2024-11-08 16:37:14,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 16:37:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 21290 states and 29874 transitions. [2024-11-08 16:37:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 16:37:14,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:14,605 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:14,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:37:14,606 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:14,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:14,606 INFO L85 PathProgramCache]: Analyzing trace with hash -938248392, now seen corresponding path program 1 times [2024-11-08 16:37:14,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:14,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728776956] [2024-11-08 16:37:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:14,720 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:14,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:14,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728776956] [2024-11-08 16:37:14,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728776956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:14,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:14,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:14,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391842064] [2024-11-08 16:37:14,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:14,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:14,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:14,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:14,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:14,722 INFO L87 Difference]: Start difference. First operand 21290 states and 29874 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:37:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:15,039 INFO L93 Difference]: Finished difference Result 28386 states and 39777 transitions. [2024-11-08 16:37:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-08 16:37:15,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:15,054 INFO L225 Difference]: With dead ends: 28386 [2024-11-08 16:37:15,054 INFO L226 Difference]: Without dead ends: 9392 [2024-11-08 16:37:15,068 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 16:37:15,069 INFO L432 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:15,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9392 states. [2024-11-08 16:37:15,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9392 to 9383. [2024-11-08 16:37:15,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9383 states, 9381 states have (on average 1.4266069715382155) internal successors, (13383), 9382 states have internal predecessors, (13383), 0 states have call successors, (0), 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 16:37:15,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9383 states to 9383 states and 13383 transitions. [2024-11-08 16:37:15,356 INFO L78 Accepts]: Start accepts. Automaton has 9383 states and 13383 transitions. Word has length 81 [2024-11-08 16:37:15,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:15,357 INFO L471 AbstractCegarLoop]: Abstraction has 9383 states and 13383 transitions. [2024-11-08 16:37:15,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 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 16:37:15,357 INFO L276 IsEmpty]: Start isEmpty. Operand 9383 states and 13383 transitions. [2024-11-08 16:37:15,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 16:37:15,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:15,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:15,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:37:15,360 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:15,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:15,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1200259612, now seen corresponding path program 1 times [2024-11-08 16:37:15,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:15,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031122879] [2024-11-08 16:37:15,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:15,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:15,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031122879] [2024-11-08 16:37:15,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031122879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141952152] [2024-11-08 16:37:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:15,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:15,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:15,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:15,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:15,495 INFO L87 Difference]: Start difference. First operand 9383 states and 13383 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 16:37:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:15,638 INFO L93 Difference]: Finished difference Result 12923 states and 18273 transitions. [2024-11-08 16:37:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2024-11-08 16:37:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:15,646 INFO L225 Difference]: With dead ends: 12923 [2024-11-08 16:37:15,646 INFO L226 Difference]: Without dead ends: 5849 [2024-11-08 16:37:15,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:15,654 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:15,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:15,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5849 states. [2024-11-08 16:37:15,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5849 to 5847. [2024-11-08 16:37:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 5845 states have (on average 1.4444824636441402) internal successors, (8443), 5846 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 16:37:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8443 transitions. [2024-11-08 16:37:15,812 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8443 transitions. Word has length 82 [2024-11-08 16:37:15,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:15,812 INFO L471 AbstractCegarLoop]: Abstraction has 5847 states and 8443 transitions. [2024-11-08 16:37:15,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 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 16:37:15,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8443 transitions. [2024-11-08 16:37:15,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 16:37:15,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:15,814 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:15,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:37:15,815 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:15,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1592919630, now seen corresponding path program 1 times [2024-11-08 16:37:15,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:15,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499708428] [2024-11-08 16:37:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:15,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:15,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499708428] [2024-11-08 16:37:15,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499708428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:15,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:15,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369489897] [2024-11-08 16:37:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:15,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:15,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:15,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:15,935 INFO L87 Difference]: Start difference. First operand 5847 states and 8443 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 16:37:16,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:16,023 INFO L93 Difference]: Finished difference Result 7619 states and 10863 transitions. [2024-11-08 16:37:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:16,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 16:37:16,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:16,030 INFO L225 Difference]: With dead ends: 7619 [2024-11-08 16:37:16,031 INFO L226 Difference]: Without dead ends: 4081 [2024-11-08 16:37:16,034 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 16:37:16,034 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:16,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2024-11-08 16:37:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4079. [2024-11-08 16:37:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4079 states, 4077 states have (on average 1.4714250674515574) internal successors, (5999), 4078 states have internal predecessors, (5999), 0 states have call successors, (0), 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 16:37:16,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4079 states to 4079 states and 5999 transitions. [2024-11-08 16:37:16,145 INFO L78 Accepts]: Start accepts. Automaton has 4079 states and 5999 transitions. Word has length 84 [2024-11-08 16:37:16,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:16,145 INFO L471 AbstractCegarLoop]: Abstraction has 4079 states and 5999 transitions. [2024-11-08 16:37:16,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 16:37:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 4079 states and 5999 transitions. [2024-11-08 16:37:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 16:37:16,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:16,147 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:16,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:37:16,148 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:16,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:16,148 INFO L85 PathProgramCache]: Analyzing trace with hash 36897024, now seen corresponding path program 1 times [2024-11-08 16:37:16,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:16,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398713917] [2024-11-08 16:37:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:16,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:16,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398713917] [2024-11-08 16:37:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398713917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:37:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:37:16,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:37:16,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756236788] [2024-11-08 16:37:16,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:37:16,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:37:16,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:16,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:37:16,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:37:16,284 INFO L87 Difference]: Start difference. First operand 4079 states and 5999 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 16:37:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:16,377 INFO L93 Difference]: Finished difference Result 4967 states and 7197 transitions. [2024-11-08 16:37:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:37:16,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-08 16:37:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:16,384 INFO L225 Difference]: With dead ends: 4967 [2024-11-08 16:37:16,384 INFO L226 Difference]: Without dead ends: 3197 [2024-11-08 16:37:16,386 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 16:37:16,386 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:16,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:37:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-11-08 16:37:16,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3195. [2024-11-08 16:37:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3193 states have (on average 1.5001565925461948) internal successors, (4790), 3194 states have internal predecessors, (4790), 0 states have call successors, (0), 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 16:37:16,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4790 transitions. [2024-11-08 16:37:16,453 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4790 transitions. Word has length 86 [2024-11-08 16:37:16,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:16,453 INFO L471 AbstractCegarLoop]: Abstraction has 3195 states and 4790 transitions. [2024-11-08 16:37:16,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 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 16:37:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4790 transitions. [2024-11-08 16:37:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 16:37:16,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:16,455 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:16,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:37:16,456 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:16,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:16,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1711051314, now seen corresponding path program 1 times [2024-11-08 16:37:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:16,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038791993] [2024-11-08 16:37:16,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:16,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:16,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:16,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038791993] [2024-11-08 16:37:16,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038791993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:37:16,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184480348] [2024-11-08 16:37:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:16,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:16,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:16,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:37:16,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:37:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:17,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:37:17,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:37:17,980 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:17,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:37:19,719 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:19,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184480348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:37:19,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:37:19,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-08 16:37:19,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066042765] [2024-11-08 16:37:19,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:37:19,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 16:37:19,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 16:37:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-08 16:37:19,724 INFO L87 Difference]: Start difference. First operand 3195 states and 4790 transitions. Second operand has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 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 16:37:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:21,477 INFO L93 Difference]: Finished difference Result 5935 states and 8461 transitions. [2024-11-08 16:37:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 16:37:21,478 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 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 88 [2024-11-08 16:37:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:21,485 INFO L225 Difference]: With dead ends: 5935 [2024-11-08 16:37:21,485 INFO L226 Difference]: Without dead ends: 5049 [2024-11-08 16:37:21,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=477, Invalid=1779, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 16:37:21,488 INFO L432 NwaCegarLoop]: 1504 mSDtfsCounter, 14253 mSDsluCounter, 7997 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14253 SdHoareTripleChecker+Valid, 9501 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:21,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14253 Valid, 9501 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:37:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5049 states. [2024-11-08 16:37:21,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5049 to 5028. [2024-11-08 16:37:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5026 states have (on average 1.4315559092717867) internal successors, (7195), 5027 states have internal predecessors, (7195), 0 states have call successors, (0), 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 16:37:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 7195 transitions. [2024-11-08 16:37:21,696 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 7195 transitions. Word has length 88 [2024-11-08 16:37:21,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:21,696 INFO L471 AbstractCegarLoop]: Abstraction has 5028 states and 7195 transitions. [2024-11-08 16:37:21,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.384615384615385) internal successors, (244), 25 states have internal predecessors, (244), 0 states have call successors, (0), 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 16:37:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 7195 transitions. [2024-11-08 16:37:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 16:37:21,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:21,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:21,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:37:21,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:21,900 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:21,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:21,901 INFO L85 PathProgramCache]: Analyzing trace with hash -481874462, now seen corresponding path program 1 times [2024-11-08 16:37:21,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070051252] [2024-11-08 16:37:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:23,197 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:23,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:23,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070051252] [2024-11-08 16:37:23,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070051252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:37:23,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874893092] [2024-11-08 16:37:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:23,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:23,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:23,200 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:37:23,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:37:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:23,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 16:37:23,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:37:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:24,191 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:37:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:25,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874893092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:37:25,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:37:25,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 29 [2024-11-08 16:37:25,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18615202] [2024-11-08 16:37:25,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:37:25,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 16:37:25,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 16:37:25,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2024-11-08 16:37:25,454 INFO L87 Difference]: Start difference. First operand 5028 states and 7195 transitions. Second operand has 30 states, 30 states have (on average 7.566666666666666) internal successors, (227), 29 states have internal predecessors, (227), 0 states have call successors, (0), 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 16:37:26,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:26,600 INFO L93 Difference]: Finished difference Result 10702 states and 14725 transitions. [2024-11-08 16:37:26,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 16:37:26,600 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 7.566666666666666) internal successors, (227), 29 states have internal predecessors, (227), 0 states have call successors, (0), 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 89 [2024-11-08 16:37:26,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:26,607 INFO L225 Difference]: With dead ends: 10702 [2024-11-08 16:37:26,607 INFO L226 Difference]: Without dead ends: 7983 [2024-11-08 16:37:26,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=389, Invalid=1417, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 16:37:26,614 INFO L432 NwaCegarLoop]: 1503 mSDtfsCounter, 13948 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13948 SdHoareTripleChecker+Valid, 4924 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:26,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13948 Valid, 4924 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:37:26,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7983 states. [2024-11-08 16:37:26,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7983 to 7901. [2024-11-08 16:37:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7901 states, 7899 states have (on average 1.3799215090517787) internal successors, (10900), 7900 states have internal predecessors, (10900), 0 states have call successors, (0), 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 16:37:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7901 states to 7901 states and 10900 transitions. [2024-11-08 16:37:26,791 INFO L78 Accepts]: Start accepts. Automaton has 7901 states and 10900 transitions. Word has length 89 [2024-11-08 16:37:26,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:26,791 INFO L471 AbstractCegarLoop]: Abstraction has 7901 states and 10900 transitions. [2024-11-08 16:37:26,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 7.566666666666666) internal successors, (227), 29 states have internal predecessors, (227), 0 states have call successors, (0), 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 16:37:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 7901 states and 10900 transitions. [2024-11-08 16:37:26,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:37:26,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:26,793 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:26,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 16:37:26,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 16:37:26,994 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:26,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:26,995 INFO L85 PathProgramCache]: Analyzing trace with hash 635985876, now seen corresponding path program 1 times [2024-11-08 16:37:26,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:26,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059527407] [2024-11-08 16:37:26,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:26,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:27,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:27,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059527407] [2024-11-08 16:37:27,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059527407] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:37:27,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916971057] [2024-11-08 16:37:27,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:27,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:27,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:27,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:37:27,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:37:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:27,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:37:27,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:37:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:28,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:37:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:29,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916971057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:37:29,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:37:29,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-08 16:37:29,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44032075] [2024-11-08 16:37:29,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:37:29,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 16:37:29,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:29,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 16:37:29,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:37:29,180 INFO L87 Difference]: Start difference. First operand 7901 states and 10900 transitions. Second operand has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 20 states have internal predecessors, (193), 0 states have call successors, (0), 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 16:37:29,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:29,989 INFO L93 Difference]: Finished difference Result 15109 states and 20321 transitions. [2024-11-08 16:37:29,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:37:29,989 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 20 states have internal predecessors, (193), 0 states have call successors, (0), 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 90 [2024-11-08 16:37:29,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:30,000 INFO L225 Difference]: With dead ends: 15109 [2024-11-08 16:37:30,000 INFO L226 Difference]: Without dead ends: 9517 [2024-11-08 16:37:30,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:37:30,005 INFO L432 NwaCegarLoop]: 1537 mSDtfsCounter, 15293 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15293 SdHoareTripleChecker+Valid, 4855 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:30,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15293 Valid, 4855 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:37:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9517 states. [2024-11-08 16:37:30,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9517 to 9463. [2024-11-08 16:37:30,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9463 states, 9461 states have (on average 1.3618010781101364) internal successors, (12884), 9462 states have internal predecessors, (12884), 0 states have call successors, (0), 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 16:37:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9463 states to 9463 states and 12884 transitions. [2024-11-08 16:37:30,233 INFO L78 Accepts]: Start accepts. Automaton has 9463 states and 12884 transitions. Word has length 90 [2024-11-08 16:37:30,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:30,234 INFO L471 AbstractCegarLoop]: Abstraction has 9463 states and 12884 transitions. [2024-11-08 16:37:30,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.19047619047619) internal successors, (193), 20 states have internal predecessors, (193), 0 states have call successors, (0), 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 16:37:30,234 INFO L276 IsEmpty]: Start isEmpty. Operand 9463 states and 12884 transitions. [2024-11-08 16:37:30,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 16:37:30,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:30,236 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:30,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:37:30,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 16:37:30,437 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:30,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash -342924142, now seen corresponding path program 1 times [2024-11-08 16:37:30,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:30,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586271494] [2024-11-08 16:37:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:30,931 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:30,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586271494] [2024-11-08 16:37:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586271494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:37:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916987989] [2024-11-08 16:37:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:30,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:30,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:30,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:37:30,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:37:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:31,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:37:31,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:37:31,689 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:31,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:37:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:32,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916987989] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:37:32,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:37:32,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-08 16:37:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626894093] [2024-11-08 16:37:32,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:37:32,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 16:37:32,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:32,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 16:37:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:37:32,829 INFO L87 Difference]: Start difference. First operand 9463 states and 12884 transitions. Second operand has 22 states, 22 states have (on average 9.636363636363637) internal successors, (212), 21 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:33,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:37:33,752 INFO L93 Difference]: Finished difference Result 24309 states and 32255 transitions. [2024-11-08 16:37:33,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:37:33,753 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.636363636363637) internal successors, (212), 21 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-08 16:37:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:37:33,770 INFO L225 Difference]: With dead ends: 24309 [2024-11-08 16:37:33,770 INFO L226 Difference]: Without dead ends: 17169 [2024-11-08 16:37:33,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:37:33,776 INFO L432 NwaCegarLoop]: 1522 mSDtfsCounter, 13816 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13816 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:37:33,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13816 Valid, 6200 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 16:37:33,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17169 states. [2024-11-08 16:37:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17169 to 16977. [2024-11-08 16:37:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16977 states, 16975 states have (on average 1.321178203240059) internal successors, (22427), 16976 states have internal predecessors, (22427), 0 states have call successors, (0), 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 16:37:34,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16977 states to 16977 states and 22427 transitions. [2024-11-08 16:37:34,268 INFO L78 Accepts]: Start accepts. Automaton has 16977 states and 22427 transitions. Word has length 91 [2024-11-08 16:37:34,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:37:34,268 INFO L471 AbstractCegarLoop]: Abstraction has 16977 states and 22427 transitions. [2024-11-08 16:37:34,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.636363636363637) internal successors, (212), 21 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:37:34,268 INFO L276 IsEmpty]: Start isEmpty. Operand 16977 states and 22427 transitions. [2024-11-08 16:37:34,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:37:34,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:37:34,271 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:37:34,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:37:34,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 16:37:34,472 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:37:34,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:37:34,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1337488352, now seen corresponding path program 1 times [2024-11-08 16:37:34,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:37:34,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093498011] [2024-11-08 16:37:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:34,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:37:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:35,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:37:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093498011] [2024-11-08 16:37:35,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093498011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:37:35,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112806385] [2024-11-08 16:37:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:37:35,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:37:35,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:37:35,905 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:37:35,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:37:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:37:36,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 16:37:36,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:37:39,637 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:39,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:37:44,267 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:37:44,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112806385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:37:44,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:37:44,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21, 19] total 49 [2024-11-08 16:37:44,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767668945] [2024-11-08 16:37:44,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:37:44,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-08 16:37:44,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:37:44,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-08 16:37:44,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=2079, Unknown=0, NotChecked=0, Total=2352 [2024-11-08 16:37:44,271 INFO L87 Difference]: Start difference. First operand 16977 states and 22427 transitions. Second operand has 49 states, 49 states have (on average 4.959183673469388) internal successors, (243), 49 states have internal predecessors, (243), 0 states have call successors, (0), 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 16:38:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:10,001 INFO L93 Difference]: Finished difference Result 45114 states and 58653 transitions. [2024-11-08 16:38:10,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2024-11-08 16:38:10,002 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.959183673469388) internal successors, (243), 49 states have internal predecessors, (243), 0 states have call successors, (0), 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 92 [2024-11-08 16:38:10,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:10,039 INFO L225 Difference]: With dead ends: 45114 [2024-11-08 16:38:10,039 INFO L226 Difference]: Without dead ends: 39996 [2024-11-08 16:38:10,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8689 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=4711, Invalid=21049, Unknown=0, NotChecked=0, Total=25760 [2024-11-08 16:38:10,051 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 24738 mSDsluCounter, 24794 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24738 SdHoareTripleChecker+Valid, 26397 SdHoareTripleChecker+Invalid, 4690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:10,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24738 Valid, 26397 Invalid, 4690 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 16:38:10,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39996 states. [2024-11-08 16:38:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39996 to 16233. [2024-11-08 16:38:10,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16233 states, 16231 states have (on average 1.3204978128273057) internal successors, (21433), 16232 states have internal predecessors, (21433), 0 states have call successors, (0), 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 16:38:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16233 states to 16233 states and 21433 transitions. [2024-11-08 16:38:10,843 INFO L78 Accepts]: Start accepts. Automaton has 16233 states and 21433 transitions. Word has length 92 [2024-11-08 16:38:10,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:10,844 INFO L471 AbstractCegarLoop]: Abstraction has 16233 states and 21433 transitions. [2024-11-08 16:38:10,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.959183673469388) internal successors, (243), 49 states have internal predecessors, (243), 0 states have call successors, (0), 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 16:38:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 16233 states and 21433 transitions. [2024-11-08 16:38:10,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:38:10,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:10,847 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:10,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:38:11,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 16:38:11,048 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:11,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1203235580, now seen corresponding path program 1 times [2024-11-08 16:38:11,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:11,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103790154] [2024-11-08 16:38:11,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:11,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:12,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103790154] [2024-11-08 16:38:12,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103790154] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111427547] [2024-11-08 16:38:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:12,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:12,354 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:12,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:38:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:12,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 16:38:12,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:14,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:38:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:19,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111427547] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:38:19,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:38:19,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 19, 21] total 48 [2024-11-08 16:38:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836258206] [2024-11-08 16:38:19,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:38:19,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-08 16:38:19,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:38:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-08 16:38:19,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=2017, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 16:38:19,288 INFO L87 Difference]: Start difference. First operand 16233 states and 21433 transitions. Second operand has 48 states, 48 states have (on average 5.416666666666667) internal successors, (260), 48 states have internal predecessors, (260), 0 states have call successors, (0), 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 16:38:47,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:38:47,496 INFO L93 Difference]: Finished difference Result 41331 states and 52923 transitions. [2024-11-08 16:38:47,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-11-08 16:38:47,497 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.416666666666667) internal successors, (260), 48 states have internal predecessors, (260), 0 states have call successors, (0), 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 92 [2024-11-08 16:38:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:38:47,523 INFO L225 Difference]: With dead ends: 41331 [2024-11-08 16:38:47,524 INFO L226 Difference]: Without dead ends: 34357 [2024-11-08 16:38:47,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18214 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=9366, Invalid=38376, Unknown=0, NotChecked=0, Total=47742 [2024-11-08 16:38:47,535 INFO L432 NwaCegarLoop]: 1594 mSDtfsCounter, 24554 mSDsluCounter, 30721 mSDsCounter, 0 mSdLazyCounter, 3992 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24554 SdHoareTripleChecker+Valid, 32315 SdHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 3992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:38:47,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24554 Valid, 32315 Invalid, 4115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [123 Valid, 3992 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 16:38:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34357 states. [2024-11-08 16:38:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34357 to 24091. [2024-11-08 16:38:48,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24091 states, 24089 states have (on average 1.3002615301589937) internal successors, (31322), 24090 states have internal predecessors, (31322), 0 states have call successors, (0), 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 16:38:48,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24091 states to 24091 states and 31322 transitions. [2024-11-08 16:38:48,535 INFO L78 Accepts]: Start accepts. Automaton has 24091 states and 31322 transitions. Word has length 92 [2024-11-08 16:38:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:38:48,535 INFO L471 AbstractCegarLoop]: Abstraction has 24091 states and 31322 transitions. [2024-11-08 16:38:48,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.416666666666667) internal successors, (260), 48 states have internal predecessors, (260), 0 states have call successors, (0), 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 16:38:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 24091 states and 31322 transitions. [2024-11-08 16:38:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:38:48,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:38:48,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:38:48,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:38:48,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 16:38:48,738 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:38:48,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:38:48,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1035397956, now seen corresponding path program 1 times [2024-11-08 16:38:48,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:38:48,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523627492] [2024-11-08 16:38:48,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:48,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:38:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:50,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:38:50,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523627492] [2024-11-08 16:38:50,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523627492] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:38:50,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144683905] [2024-11-08 16:38:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:38:50,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:38:50,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:38:50,819 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:38:50,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:38:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:38:51,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-08 16:38:51,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:38:57,648 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:38:57,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:39:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:39:07,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144683905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:39:07,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:39:07,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 28, 28] total 72 [2024-11-08 16:39:07,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703244247] [2024-11-08 16:39:07,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:39:07,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-08 16:39:07,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:39:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-08 16:39:07,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=4405, Unknown=0, NotChecked=0, Total=5112 [2024-11-08 16:39:07,253 INFO L87 Difference]: Start difference. First operand 24091 states and 31322 transitions. Second operand has 72 states, 72 states have (on average 3.611111111111111) internal successors, (260), 72 states have internal predecessors, (260), 0 states have call successors, (0), 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 16:39:46,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:39:46,709 INFO L93 Difference]: Finished difference Result 45520 states and 58686 transitions. [2024-11-08 16:39:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2024-11-08 16:39:46,709 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 3.611111111111111) internal successors, (260), 72 states have internal predecessors, (260), 0 states have call successors, (0), 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 92 [2024-11-08 16:39:46,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:39:46,736 INFO L225 Difference]: With dead ends: 45520 [2024-11-08 16:39:46,736 INFO L226 Difference]: Without dead ends: 33434 [2024-11-08 16:39:46,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14347 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=6976, Invalid=34436, Unknown=0, NotChecked=0, Total=41412 [2024-11-08 16:39:46,750 INFO L432 NwaCegarLoop]: 1571 mSDtfsCounter, 25818 mSDsluCounter, 27987 mSDsCounter, 0 mSdLazyCounter, 6696 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25818 SdHoareTripleChecker+Valid, 29558 SdHoareTripleChecker+Invalid, 6784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 6696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:39:46,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25818 Valid, 29558 Invalid, 6784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 6696 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-08 16:39:46,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33434 states. [2024-11-08 16:39:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33434 to 19102. [2024-11-08 16:39:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19102 states, 19100 states have (on average 1.314764397905759) internal successors, (25112), 19101 states have internal predecessors, (25112), 0 states have call successors, (0), 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 16:39:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19102 states to 19102 states and 25112 transitions. [2024-11-08 16:39:47,725 INFO L78 Accepts]: Start accepts. Automaton has 19102 states and 25112 transitions. Word has length 92 [2024-11-08 16:39:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:39:47,725 INFO L471 AbstractCegarLoop]: Abstraction has 19102 states and 25112 transitions. [2024-11-08 16:39:47,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.611111111111111) internal successors, (260), 72 states have internal predecessors, (260), 0 states have call successors, (0), 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 16:39:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 19102 states and 25112 transitions. [2024-11-08 16:39:47,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:39:47,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:39:47,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:39:47,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:39:47,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-08 16:39:47,927 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:39:47,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:39:47,928 INFO L85 PathProgramCache]: Analyzing trace with hash -192729184, now seen corresponding path program 1 times [2024-11-08 16:39:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:39:47,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893287985] [2024-11-08 16:39:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:39:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:39:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:39:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:39:48,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:39:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893287985] [2024-11-08 16:39:48,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893287985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:39:48,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163365908] [2024-11-08 16:39:48,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:39:48,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:39:48,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:39:48,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:39:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:39:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:39:48,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 16:39:48,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:39:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:39:48,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:39:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:39:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163365908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:39:49,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:39:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 6] total 13 [2024-11-08 16:39:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107000067] [2024-11-08 16:39:49,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:39:49,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:39:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:39:49,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:39:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:39:49,278 INFO L87 Difference]: Start difference. First operand 19102 states and 25112 transitions. Second operand has 13 states, 13 states have (on average 20.076923076923077) internal successors, (261), 13 states have internal predecessors, (261), 0 states have call successors, (0), 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 16:39:53,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:39:53,483 INFO L93 Difference]: Finished difference Result 80348 states and 101897 transitions. [2024-11-08 16:39:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:39:53,483 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 20.076923076923077) internal successors, (261), 13 states have internal predecessors, (261), 0 states have call successors, (0), 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 93 [2024-11-08 16:39:53,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:39:53,537 INFO L225 Difference]: With dead ends: 80348 [2024-11-08 16:39:53,537 INFO L226 Difference]: Without dead ends: 62886 [2024-11-08 16:39:53,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:39:53,551 INFO L432 NwaCegarLoop]: 1616 mSDtfsCounter, 3392 mSDsluCounter, 6498 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 8114 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:39:53,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 8114 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:39:53,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62886 states. [2024-11-08 16:39:57,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62886 to 57048. [2024-11-08 16:39:57,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57048 states, 57046 states have (on average 1.2564772289029906) internal successors, (71677), 57047 states have internal predecessors, (71677), 0 states have call successors, (0), 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 16:39:57,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57048 states to 57048 states and 71677 transitions. [2024-11-08 16:39:57,547 INFO L78 Accepts]: Start accepts. Automaton has 57048 states and 71677 transitions. Word has length 93 [2024-11-08 16:39:57,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:39:57,548 INFO L471 AbstractCegarLoop]: Abstraction has 57048 states and 71677 transitions. [2024-11-08 16:39:57,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.076923076923077) internal successors, (261), 13 states have internal predecessors, (261), 0 states have call successors, (0), 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 16:39:57,548 INFO L276 IsEmpty]: Start isEmpty. Operand 57048 states and 71677 transitions. [2024-11-08 16:39:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 16:39:57,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:39:57,549 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:39:57,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 16:39:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:39:57,750 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:39:57,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:39:57,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1951035782, now seen corresponding path program 1 times [2024-11-08 16:39:57,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:39:57,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629444416] [2024-11-08 16:39:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:39:57,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:39:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:40:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:01,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:40:01,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629444416] [2024-11-08 16:40:01,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629444416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:40:01,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384325348] [2024-11-08 16:40:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:40:01,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:40:01,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:40:01,396 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:40:01,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:40:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:40:01,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 16:40:01,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:40:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:05,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:40:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:09,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384325348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:40:09,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:40:09,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 21] total 63 [2024-11-08 16:40:09,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495924056] [2024-11-08 16:40:09,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:40:09,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-08 16:40:09,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:40:09,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-08 16:40:09,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=3551, Unknown=0, NotChecked=0, Total=3906 [2024-11-08 16:40:09,029 INFO L87 Difference]: Start difference. First operand 57048 states and 71677 transitions. Second operand has 63 states, 63 states have (on average 4.158730158730159) internal successors, (262), 63 states have internal predecessors, (262), 0 states have call successors, (0), 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 16:40:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:40:38,742 INFO L93 Difference]: Finished difference Result 202487 states and 253043 transitions. [2024-11-08 16:40:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-11-08 16:40:38,742 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.158730158730159) internal successors, (262), 63 states have internal predecessors, (262), 0 states have call successors, (0), 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 94 [2024-11-08 16:40:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:40:38,980 INFO L225 Difference]: With dead ends: 202487 [2024-11-08 16:40:38,981 INFO L226 Difference]: Without dead ends: 187507 [2024-11-08 16:40:39,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6875 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=3061, Invalid=19589, Unknown=0, NotChecked=0, Total=22650 [2024-11-08 16:40:39,013 INFO L432 NwaCegarLoop]: 1516 mSDtfsCounter, 31412 mSDsluCounter, 27064 mSDsCounter, 0 mSdLazyCounter, 4304 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31412 SdHoareTripleChecker+Valid, 28580 SdHoareTripleChecker+Invalid, 4401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 4304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:40:39,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31412 Valid, 28580 Invalid, 4401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 4304 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 16:40:39,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187507 states. [2024-11-08 16:40:44,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187507 to 57054. [2024-11-08 16:40:44,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57054 states, 57052 states have (on average 1.2564677837762042) internal successors, (71684), 57053 states have internal predecessors, (71684), 0 states have call successors, (0), 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 16:40:44,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57054 states to 57054 states and 71684 transitions. [2024-11-08 16:40:44,251 INFO L78 Accepts]: Start accepts. Automaton has 57054 states and 71684 transitions. Word has length 94 [2024-11-08 16:40:44,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:40:44,252 INFO L471 AbstractCegarLoop]: Abstraction has 57054 states and 71684 transitions. [2024-11-08 16:40:44,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.158730158730159) internal successors, (262), 63 states have internal predecessors, (262), 0 states have call successors, (0), 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 16:40:44,252 INFO L276 IsEmpty]: Start isEmpty. Operand 57054 states and 71684 transitions. [2024-11-08 16:40:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:40:44,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:40:44,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:40:44,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 16:40:44,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:40:44,455 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:40:44,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:40:44,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1024912624, now seen corresponding path program 1 times [2024-11-08 16:40:44,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:40:44,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741141659] [2024-11-08 16:40:44,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:40:44,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:40:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:40:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:46,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:40:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741141659] [2024-11-08 16:40:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741141659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:40:46,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109841468] [2024-11-08 16:40:46,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:40:46,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:40:46,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:40:46,083 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:40:46,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 16:40:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:40:46,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 16:40:46,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:40:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:47,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:40:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:40:48,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109841468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:40:48,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:40:48,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 38 [2024-11-08 16:40:48,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57659473] [2024-11-08 16:40:48,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:40:48,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-08 16:40:48,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:40:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-08 16:40:48,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1281, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 16:40:48,657 INFO L87 Difference]: Start difference. First operand 57054 states and 71684 transitions. Second operand has 38 states, 38 states have (on average 5.973684210526316) internal successors, (227), 38 states have internal predecessors, (227), 0 states have call successors, (0), 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 16:40:58,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:40:58,985 INFO L93 Difference]: Finished difference Result 120322 states and 151296 transitions. [2024-11-08 16:40:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 16:40:58,985 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.973684210526316) internal successors, (227), 38 states have internal predecessors, (227), 0 states have call successors, (0), 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 95 [2024-11-08 16:40:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:40:59,076 INFO L225 Difference]: With dead ends: 120322 [2024-11-08 16:40:59,076 INFO L226 Difference]: Without dead ends: 105342 [2024-11-08 16:40:59,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=728, Invalid=3054, Unknown=0, NotChecked=0, Total=3782 [2024-11-08 16:40:59,087 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 12820 mSDsluCounter, 24350 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12820 SdHoareTripleChecker+Valid, 25856 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:40:59,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12820 Valid, 25856 Invalid, 1377 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 16:40:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105342 states. [2024-11-08 16:41:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105342 to 56754. [2024-11-08 16:41:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56754 states, 56752 states have (on average 1.2574711023400056) internal successors, (71364), 56753 states have internal predecessors, (71364), 0 states have call successors, (0), 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 16:41:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56754 states to 56754 states and 71364 transitions. [2024-11-08 16:41:03,248 INFO L78 Accepts]: Start accepts. Automaton has 56754 states and 71364 transitions. Word has length 95 [2024-11-08 16:41:03,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:41:03,249 INFO L471 AbstractCegarLoop]: Abstraction has 56754 states and 71364 transitions. [2024-11-08 16:41:03,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.973684210526316) internal successors, (227), 38 states have internal predecessors, (227), 0 states have call successors, (0), 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 16:41:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 56754 states and 71364 transitions. [2024-11-08 16:41:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 16:41:03,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:41:03,251 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:41:03,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 16:41:03,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:41:03,452 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:41:03,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:41:03,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1825788515, now seen corresponding path program 1 times [2024-11-08 16:41:03,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:41:03,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322537485] [2024-11-08 16:41:03,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:41:03,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:41:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:41:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:41:03,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:41:03,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322537485] [2024-11-08 16:41:03,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322537485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:41:03,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:41:03,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:41:03,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532315458] [2024-11-08 16:41:03,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:41:03,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:41:03,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:41:03,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:41:03,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:41:03,658 INFO L87 Difference]: Start difference. First operand 56754 states and 71364 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 16:41:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:41:12,466 INFO L93 Difference]: Finished difference Result 60550 states and 77728 transitions. [2024-11-08 16:41:12,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:41:12,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-08 16:41:12,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:41:12,513 INFO L225 Difference]: With dead ends: 60550 [2024-11-08 16:41:12,513 INFO L226 Difference]: Without dead ends: 58258 [2024-11-08 16:41:12,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:41:12,524 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 794 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 3781 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 4444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:41:12,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 904 Invalid, 4444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3781 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 16:41:12,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58258 states. [2024-11-08 16:41:16,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58258 to 58256. [2024-11-08 16:41:16,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58256 states, 58254 states have (on average 1.2523088543275998) internal successors, (72952), 58255 states have internal predecessors, (72952), 0 states have call successors, (0), 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 16:41:16,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58256 states to 58256 states and 72952 transitions. [2024-11-08 16:41:16,521 INFO L78 Accepts]: Start accepts. Automaton has 58256 states and 72952 transitions. Word has length 119 [2024-11-08 16:41:16,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:41:16,522 INFO L471 AbstractCegarLoop]: Abstraction has 58256 states and 72952 transitions. [2024-11-08 16:41:16,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 16:41:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 58256 states and 72952 transitions. [2024-11-08 16:41:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 16:41:16,525 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:41:16,525 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:16,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 16:41:16,525 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:41:16,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:41:16,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1078203128, now seen corresponding path program 1 times [2024-11-08 16:41:16,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:41:16,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831784314] [2024-11-08 16:41:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:41:16,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:41:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:41:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:41:17,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:41:17,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831784314] [2024-11-08 16:41:17,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831784314] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:41:17,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884996482] [2024-11-08 16:41:17,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:41:17,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:41:17,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:41:17,703 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:41:17,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c98dac27-db15-4642-89e0-962c33b9e580/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 16:41:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:41:17,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 16:41:17,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:41:18,832 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 35 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:41:18,832 INFO L311 TraceCheckSpWp]: Computing backward predicates...