./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU --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 64bit --witnessprinter.graph.data.programhash c13079d4927c37ef7c4e12e861d352aca7538cf90caea314288bdceb904b4d72 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:16,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:16,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 22:03:16,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:16,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:16,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:16,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:16,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:16,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:16,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:16,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:16,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:16,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:16,362 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:16,364 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:16,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:16,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:16,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:16,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:16,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:16,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:16,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:16,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:16,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:16,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:16,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:16,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:16,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:16,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:16,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:16,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:16,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:16,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:16,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:16,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:16,378 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:16,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:16,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:16,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:16,379 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_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c13079d4927c37ef7c4e12e861d352aca7538cf90caea314288bdceb904b4d72 [2024-10-31 22:03:16,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:16,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:16,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:16,731 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:16,731 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:16,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c Unable to find full path for "g++" [2024-10-31 22:03:18,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:18,977 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:18,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c [2024-10-31 22:03:19,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/data/7cf488b9c/af3960faba67421eade2ed3b6c9a88cc/FLAG95aee9406 [2024-10-31 22:03:19,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/data/7cf488b9c/af3960faba67421eade2ed3b6c9a88cc [2024-10-31 22:03:19,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:19,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:19,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:19,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:19,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:19,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:19,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c298e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19, skipping insertion in model container [2024-10-31 22:03:19,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:19,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:19,406 WARN L251 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_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c[1258,1271] [2024-10-31 22:03:19,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:19,687 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:19,698 WARN L251 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_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p1.c[1258,1271] [2024-10-31 22:03:19,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:19,848 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:19,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19 WrapperNode [2024-10-31 22:03:19,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:19,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:19,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:19,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:19,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:19,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,130 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1476 [2024-10-31 22:03:20,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:20,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:20,133 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:20,134 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:20,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,234 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]. [2024-10-31 22:03:20,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,285 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,327 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,358 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:20,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:20,359 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:20,359 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:20,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (1/1) ... [2024-10-31 22:03:20,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:20,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:20,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:20,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:20,665 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:20,668 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:22,604 INFO L? ?]: Removed 723 outVars from TransFormulas that were not future-live. [2024-10-31 22:03:22,604 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:22,634 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:22,634 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:03:22,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:22 BoogieIcfgContainer [2024-10-31 22:03:22,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:22,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:22,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:22,642 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:22,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:19" (1/3) ... [2024-10-31 22:03:22,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29053cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:22, skipping insertion in model container [2024-10-31 22:03:22,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:19" (2/3) ... [2024-10-31 22:03:22,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29053cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:22, skipping insertion in model container [2024-10-31 22:03:22,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:22" (3/3) ... [2024-10-31 22:03:22,648 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vMiim_p1.c [2024-10-31 22:03:22,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:22,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:03:22,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:22,768 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;@6b9771ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:22,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:03:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-31 22:03:22,791 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:22,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:22,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:22,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:22,801 INFO L85 PathProgramCache]: Analyzing trace with hash -288881028, now seen corresponding path program 1 times [2024-10-31 22:03:22,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:22,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882118415] [2024-10-31 22:03:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:22,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:23,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:23,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882118415] [2024-10-31 22:03:23,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882118415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:23,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:23,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:23,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139877950] [2024-10-31 22:03:23,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:23,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:23,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:23,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:23,990 INFO L87 Difference]: Start difference. First operand has 346 states, 344 states have (on average 1.497093023255814) internal successors, (515), 345 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:24,105 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-10-31 22:03:24,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:24,108 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-10-31 22:03:24,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:24,126 INFO L225 Difference]: With dead ends: 565 [2024-10-31 22:03:24,126 INFO L226 Difference]: Without dead ends: 345 [2024-10-31 22:03:24,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:24,137 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:24,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:03:24,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-31 22:03:24,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2024-10-31 22:03:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 344 states have (on average 1.4912790697674418) internal successors, (513), 344 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 513 transitions. [2024-10-31 22:03:24,231 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 513 transitions. Word has length 85 [2024-10-31 22:03:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:24,235 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 513 transitions. [2024-10-31 22:03:24,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:24,236 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 513 transitions. [2024-10-31 22:03:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-31 22:03:24,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:24,242 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:24,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:24,243 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:24,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:24,244 INFO L85 PathProgramCache]: Analyzing trace with hash -363681603, now seen corresponding path program 1 times [2024-10-31 22:03:24,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:24,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233207492] [2024-10-31 22:03:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:24,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:24,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233207492] [2024-10-31 22:03:24,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233207492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:24,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:24,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:24,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163833431] [2024-10-31 22:03:24,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:24,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:24,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:24,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:24,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:24,619 INFO L87 Difference]: Start difference. First operand 345 states and 513 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 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) [2024-10-31 22:03:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:24,682 INFO L93 Difference]: Finished difference Result 566 states and 841 transitions. [2024-10-31 22:03:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:24,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 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 [2024-10-31 22:03:24,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:24,686 INFO L225 Difference]: With dead ends: 566 [2024-10-31 22:03:24,689 INFO L226 Difference]: Without dead ends: 347 [2024-10-31 22:03:24,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:24,691 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 0 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1517 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:24,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1517 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:03:24,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-31 22:03:24,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-10-31 22:03:24,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 346 states have (on average 1.4884393063583814) internal successors, (515), 346 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:24,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 515 transitions. [2024-10-31 22:03:24,723 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 515 transitions. Word has length 86 [2024-10-31 22:03:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:24,724 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 515 transitions. [2024-10-31 22:03:24,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 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) [2024-10-31 22:03:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 515 transitions. [2024-10-31 22:03:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-31 22:03:24,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:24,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:24,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:24,730 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:24,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:24,730 INFO L85 PathProgramCache]: Analyzing trace with hash 512806773, now seen corresponding path program 1 times [2024-10-31 22:03:24,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:24,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749443302] [2024-10-31 22:03:24,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:25,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:25,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:25,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749443302] [2024-10-31 22:03:25,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749443302] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:25,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:25,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:03:25,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223829444] [2024-10-31 22:03:25,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:25,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:03:25,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:25,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:03:25,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:25,705 INFO L87 Difference]: Start difference. First operand 347 states and 515 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:25,988 INFO L93 Difference]: Finished difference Result 595 states and 883 transitions. [2024-10-31 22:03:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:03:25,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2024-10-31 22:03:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:25,992 INFO L225 Difference]: With dead ends: 595 [2024-10-31 22:03:25,993 INFO L226 Difference]: Without dead ends: 374 [2024-10-31 22:03:25,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:03:25,995 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 512 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2951 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:25,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 2951 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:03:25,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-10-31 22:03:26,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2024-10-31 22:03:26,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.4838709677419355) internal successors, (552), 372 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:26,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 552 transitions. [2024-10-31 22:03:26,011 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 552 transitions. Word has length 87 [2024-10-31 22:03:26,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:26,012 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 552 transitions. [2024-10-31 22:03:26,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:26,012 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 552 transitions. [2024-10-31 22:03:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-31 22:03:26,014 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:26,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:26,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:03:26,015 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:26,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash -373971900, now seen corresponding path program 1 times [2024-10-31 22:03:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:26,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060608248] [2024-10-31 22:03:26,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:26,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:26,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:26,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060608248] [2024-10-31 22:03:26,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060608248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:26,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:26,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:03:26,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990768686] [2024-10-31 22:03:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:26,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:03:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:03:26,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:26,708 INFO L87 Difference]: Start difference. First operand 373 states and 552 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:26,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:26,951 INFO L93 Difference]: Finished difference Result 600 states and 888 transitions. [2024-10-31 22:03:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:03:26,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 [2024-10-31 22:03:26,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:26,954 INFO L225 Difference]: With dead ends: 600 [2024-10-31 22:03:26,954 INFO L226 Difference]: Without dead ends: 379 [2024-10-31 22:03:26,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:03:26,956 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 513 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:26,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 2950 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:26,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-10-31 22:03:26,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2024-10-31 22:03:26,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.4827586206896552) internal successors, (559), 377 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 559 transitions. [2024-10-31 22:03:26,969 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 559 transitions. Word has length 88 [2024-10-31 22:03:26,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:26,969 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 559 transitions. [2024-10-31 22:03:26,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 559 transitions. [2024-10-31 22:03:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-31 22:03:26,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:26,972 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:26,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:03:26,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:26,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:26,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1889870536, now seen corresponding path program 1 times [2024-10-31 22:03:26,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:26,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133826476] [2024-10-31 22:03:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:27,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:27,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133826476] [2024-10-31 22:03:27,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133826476] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:27,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:27,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:03:27,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148241180] [2024-10-31 22:03:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:27,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:27,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:27,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:27,366 INFO L87 Difference]: Start difference. First operand 378 states and 559 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:27,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:27,596 INFO L93 Difference]: Finished difference Result 802 states and 1183 transitions. [2024-10-31 22:03:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:27,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 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 [2024-10-31 22:03:27,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:27,600 INFO L225 Difference]: With dead ends: 802 [2024-10-31 22:03:27,600 INFO L226 Difference]: Without dead ends: 569 [2024-10-31 22:03:27,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:27,602 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 1070 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2456 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:27,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 2456 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2024-10-31 22:03:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 379. [2024-10-31 22:03:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 378 states have (on average 1.4788359788359788) internal successors, (559), 378 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 559 transitions. [2024-10-31 22:03:27,622 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 559 transitions. Word has length 90 [2024-10-31 22:03:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:27,624 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 559 transitions. [2024-10-31 22:03:27,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 559 transitions. [2024-10-31 22:03:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-31 22:03:27,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:27,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:27,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:03:27,630 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:27,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:27,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1080329483, now seen corresponding path program 1 times [2024-10-31 22:03:27,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:27,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202602006] [2024-10-31 22:03:27,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:27,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:28,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:28,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:28,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202602006] [2024-10-31 22:03:28,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202602006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:28,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:28,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:03:28,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054545177] [2024-10-31 22:03:28,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:28,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:28,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:28,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:28,046 INFO L87 Difference]: Start difference. First operand 379 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:28,258 INFO L93 Difference]: Finished difference Result 652 states and 955 transitions. [2024-10-31 22:03:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:28,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 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 [2024-10-31 22:03:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:28,262 INFO L225 Difference]: With dead ends: 652 [2024-10-31 22:03:28,263 INFO L226 Difference]: Without dead ends: 414 [2024-10-31 22:03:28,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:28,265 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 600 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:28,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 2471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:28,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-10-31 22:03:28,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 380. [2024-10-31 22:03:28,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.474934036939314) internal successors, (559), 379 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 559 transitions. [2024-10-31 22:03:28,281 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 559 transitions. Word has length 91 [2024-10-31 22:03:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:28,281 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 559 transitions. [2024-10-31 22:03:28,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 559 transitions. [2024-10-31 22:03:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-31 22:03:28,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:28,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:28,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:03:28,284 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:28,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:28,285 INFO L85 PathProgramCache]: Analyzing trace with hash 544002799, now seen corresponding path program 1 times [2024-10-31 22:03:28,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:28,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023661312] [2024-10-31 22:03:28,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023661312] [2024-10-31 22:03:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023661312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:28,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:03:28,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568569222] [2024-10-31 22:03:28,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:28,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:28,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:28,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:28,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:28,797 INFO L87 Difference]: Start difference. First operand 380 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:29,012 INFO L93 Difference]: Finished difference Result 682 states and 997 transitions. [2024-10-31 22:03:29,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:29,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-10-31 22:03:29,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:29,015 INFO L225 Difference]: With dead ends: 682 [2024-10-31 22:03:29,015 INFO L226 Difference]: Without dead ends: 439 [2024-10-31 22:03:29,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:29,017 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 670 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:29,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 2466 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:29,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-10-31 22:03:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 381. [2024-10-31 22:03:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.4710526315789474) internal successors, (559), 380 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 559 transitions. [2024-10-31 22:03:29,028 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 559 transitions. Word has length 92 [2024-10-31 22:03:29,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:29,029 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 559 transitions. [2024-10-31 22:03:29,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 559 transitions. [2024-10-31 22:03:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-31 22:03:29,031 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:29,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:29,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:03:29,031 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:29,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash -421531548, now seen corresponding path program 1 times [2024-10-31 22:03:29,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:29,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425895550] [2024-10-31 22:03:29,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:29,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:29,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:29,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425895550] [2024-10-31 22:03:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425895550] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:03:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220266314] [2024-10-31 22:03:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:29,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:03:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:03:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:29,467 INFO L87 Difference]: Start difference. First operand 381 states and 559 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:29,772 INFO L93 Difference]: Finished difference Result 824 states and 1207 transitions. [2024-10-31 22:03:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 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 [2024-10-31 22:03:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:29,775 INFO L225 Difference]: With dead ends: 824 [2024-10-31 22:03:29,776 INFO L226 Difference]: Without dead ends: 576 [2024-10-31 22:03:29,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:29,778 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 1076 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2471 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:29,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2471 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:03:29,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-10-31 22:03:29,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 382. [2024-10-31 22:03:29,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 1.4671916010498687) internal successors, (559), 381 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 559 transitions. [2024-10-31 22:03:29,793 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 559 transitions. Word has length 93 [2024-10-31 22:03:29,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:29,794 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 559 transitions. [2024-10-31 22:03:29,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:29,795 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 559 transitions. [2024-10-31 22:03:29,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-31 22:03:29,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:29,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:29,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:03:29,797 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:29,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:29,798 INFO L85 PathProgramCache]: Analyzing trace with hash -684017642, now seen corresponding path program 1 times [2024-10-31 22:03:29,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:29,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467937672] [2024-10-31 22:03:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:29,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:30,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:30,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467937672] [2024-10-31 22:03:30,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467937672] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:30,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:30,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430798660] [2024-10-31 22:03:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:30,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:30,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:30,191 INFO L87 Difference]: Start difference. First operand 382 states and 559 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:30,325 INFO L93 Difference]: Finished difference Result 795 states and 1166 transitions. [2024-10-31 22:03:30,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:03:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 [2024-10-31 22:03:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:30,328 INFO L225 Difference]: With dead ends: 795 [2024-10-31 22:03:30,328 INFO L226 Difference]: Without dead ends: 547 [2024-10-31 22:03:30,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:30,333 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 1025 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:30,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1494 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:03:30,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-10-31 22:03:30,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 366. [2024-10-31 22:03:30,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.4684931506849315) internal successors, (536), 365 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 536 transitions. [2024-10-31 22:03:30,344 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 536 transitions. Word has length 94 [2024-10-31 22:03:30,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:30,345 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 536 transitions. [2024-10-31 22:03:30,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:30,345 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 536 transitions. [2024-10-31 22:03:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-10-31 22:03:30,349 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:30,349 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:30,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:03:30,350 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:30,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 920549707, now seen corresponding path program 1 times [2024-10-31 22:03:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:30,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797521078] [2024-10-31 22:03:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:31,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:31,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797521078] [2024-10-31 22:03:31,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797521078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:31,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593234847] [2024-10-31 22:03:31,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:31,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:31,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:31,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:31,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:03:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:32,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:32,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:32,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:03:32,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593234847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:32,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:32,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-10-31 22:03:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116202233] [2024-10-31 22:03:32,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:32,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:32,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:32,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:32,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:32,865 INFO L87 Difference]: Start difference. First operand 366 states and 536 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:33,382 INFO L93 Difference]: Finished difference Result 586 states and 862 transitions. [2024-10-31 22:03:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:03:33,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2024-10-31 22:03:33,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:33,385 INFO L225 Difference]: With dead ends: 586 [2024-10-31 22:03:33,385 INFO L226 Difference]: Without dead ends: 365 [2024-10-31 22:03:33,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:33,387 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 388 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:33,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 601 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:03:33,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-10-31 22:03:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-10-31 22:03:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4642857142857142) internal successors, (533), 364 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:33,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 533 transitions. [2024-10-31 22:03:33,397 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 533 transitions. Word has length 197 [2024-10-31 22:03:33,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:33,397 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 533 transitions. [2024-10-31 22:03:33,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:33,398 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 533 transitions. [2024-10-31 22:03:33,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-10-31 22:03:33,400 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:33,401 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:33,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:03:33,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec6fbd80-db5d-48ba-a09c-01fc9a41ad36/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:03:33,605 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:33,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:33,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1323076601, now seen corresponding path program 1 times [2024-10-31 22:03:33,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:33,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601028449] [2024-10-31 22:03:33,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:33,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:35,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601028449] [2024-10-31 22:03:35,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601028449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:35,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:35,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:03:35,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567223833] [2024-10-31 22:03:35,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:35,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:35,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:35,282 INFO L87 Difference]: Start difference. First operand 365 states and 533 transitions. Second operand has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:35,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:35,835 INFO L93 Difference]: Finished difference Result 705 states and 1032 transitions. [2024-10-31 22:03:35,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:35,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2024-10-31 22:03:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:35,840 INFO L225 Difference]: With dead ends: 705 [2024-10-31 22:03:35,841 INFO L226 Difference]: Without dead ends: 477 [2024-10-31 22:03:35,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:03:35,843 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 787 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:35,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1770 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:03:35,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-31 22:03:35,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 431. [2024-10-31 22:03:35,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.4627906976744185) internal successors, (629), 430 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:35,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 629 transitions. [2024-10-31 22:03:35,860 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 629 transitions. Word has length 198 [2024-10-31 22:03:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:35,861 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 629 transitions. [2024-10-31 22:03:35,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.0) internal successors, (198), 6 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:35,861 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 629 transitions. [2024-10-31 22:03:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-10-31 22:03:35,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:35,865 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:35,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:03:35,866 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:35,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:35,868 INFO L85 PathProgramCache]: Analyzing trace with hash 973882016, now seen corresponding path program 1 times [2024-10-31 22:03:35,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:35,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952320690] [2024-10-31 22:03:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:35,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:37,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:37,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952320690] [2024-10-31 22:03:37,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952320690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:37,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:37,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:37,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372014171] [2024-10-31 22:03:37,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:37,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:37,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:37,804 INFO L87 Difference]: Start difference. First operand 431 states and 629 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:38,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:38,588 INFO L93 Difference]: Finished difference Result 697 states and 1020 transitions. [2024-10-31 22:03:38,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:03:38,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 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 199 [2024-10-31 22:03:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:38,591 INFO L225 Difference]: With dead ends: 697 [2024-10-31 22:03:38,591 INFO L226 Difference]: Without dead ends: 477 [2024-10-31 22:03:38,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:38,593 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 760 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:38,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 882 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:03:38,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-10-31 22:03:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 432. [2024-10-31 22:03:38,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 431 states have (on average 1.4617169373549883) internal successors, (630), 431 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 630 transitions. [2024-10-31 22:03:38,604 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 630 transitions. Word has length 199 [2024-10-31 22:03:38,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:38,604 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 630 transitions. [2024-10-31 22:03:38,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:38,605 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 630 transitions. [2024-10-31 22:03:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-10-31 22:03:38,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:38,607 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:38,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:03:38,608 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:38,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1515292036, now seen corresponding path program 1 times [2024-10-31 22:03:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:38,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423957459] [2024-10-31 22:03:38,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:38,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:40,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:40,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423957459] [2024-10-31 22:03:40,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423957459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:40,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:40,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:03:40,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995650779] [2024-10-31 22:03:40,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:40,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:40,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:40,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:40,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:03:40,120 INFO L87 Difference]: Start difference. First operand 432 states and 630 transitions. Second operand has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:40,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:40,899 INFO L93 Difference]: Finished difference Result 835 states and 1216 transitions. [2024-10-31 22:03:40,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:40,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 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 200 [2024-10-31 22:03:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:40,903 INFO L225 Difference]: With dead ends: 835 [2024-10-31 22:03:40,903 INFO L226 Difference]: Without dead ends: 615 [2024-10-31 22:03:40,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:03:40,905 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 982 mSDsluCounter, 1149 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:40,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 1684 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:03:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2024-10-31 22:03:40,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 542. [2024-10-31 22:03:40,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 541 states have (on average 1.4639556377079483) internal successors, (792), 541 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 792 transitions. [2024-10-31 22:03:40,919 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 792 transitions. Word has length 200 [2024-10-31 22:03:40,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:40,919 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 792 transitions. [2024-10-31 22:03:40,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 792 transitions. [2024-10-31 22:03:40,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-10-31 22:03:40,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:40,923 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:40,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:03:40,923 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:40,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash -601620675, now seen corresponding path program 1 times [2024-10-31 22:03:40,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:40,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439273779] [2024-10-31 22:03:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:40,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439273779] [2024-10-31 22:03:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439273779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:42,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:03:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142127795] [2024-10-31 22:03:42,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:03:42,713 INFO L87 Difference]: Start difference. First operand 542 states and 792 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:43,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:43,473 INFO L93 Difference]: Finished difference Result 764 states and 1119 transitions. [2024-10-31 22:03:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:03:43,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2024-10-31 22:03:43,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:43,477 INFO L225 Difference]: With dead ends: 764 [2024-10-31 22:03:43,477 INFO L226 Difference]: Without dead ends: 544 [2024-10-31 22:03:43,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:03:43,478 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 896 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:43,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 875 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:03:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-10-31 22:03:43,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2024-10-31 22:03:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.46309963099631) internal successors, (793), 542 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:43,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 793 transitions. [2024-10-31 22:03:43,496 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 793 transitions. Word has length 201 [2024-10-31 22:03:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:43,497 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 793 transitions. [2024-10-31 22:03:43,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:03:43,497 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 793 transitions. [2024-10-31 22:03:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-10-31 22:03:43,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:43,500 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:43,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:03:43,501 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:43,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:43,501 INFO L85 PathProgramCache]: Analyzing trace with hash 556901287, now seen corresponding path program 1 times [2024-10-31 22:03:43,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:43,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161028318] [2024-10-31 22:03:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:43,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat