./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/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_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/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 32bit --witnessprinter.graph.data.programhash e1284d110aec8c9fc5da783d4e31facf9c686765dccc1866ab0c2c6ea65f610a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:16:01,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:16:02,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:16:02,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:16:02,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:16:02,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:16:02,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:16:02,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:16:02,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:16:02,047 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:16:02,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:16:02,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:16:02,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:16:02,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:16:02,051 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:16:02,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:16:02,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:16:02,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:16:02,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:16:02,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:16:02,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:16:02,059 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:16:02,059 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:16:02,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:16:02,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:16:02,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:16:02,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:16:02,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:16:02,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:16:02,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:16:02,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:16:02,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:16:02,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:02,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:16:02,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:16:02,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:16:02,064 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:16:02,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:16:02,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:16:02,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:16:02,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:16:02,066 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:16:02,066 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_48c75864-ee87-483e-a933-1f70b2ef68d4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1284d110aec8c9fc5da783d4e31facf9c686765dccc1866ab0c2c6ea65f610a [2024-10-31 22:16:02,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:16:02,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:16:02,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:16:02,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:16:02,380 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:16:02,382 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i Unable to find full path for "g++" [2024-10-31 22:16:04,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:16:04,776 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:16:04,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i [2024-10-31 22:16:04,787 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/data/40753bbe4/7cdeff88907e4cf58ec58ca761514d59/FLAGa762627b4 [2024-10-31 22:16:04,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/data/40753bbe4/7cdeff88907e4cf58ec58ca761514d59 [2024-10-31 22:16:04,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:16:04,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:16:04,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:04,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:16:04,816 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:16:04,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:04" (1/1) ... [2024-10-31 22:16:04,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6d9474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:04, skipping insertion in model container [2024-10-31 22:16:04,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:16:04" (1/1) ... [2024-10-31 22:16:04,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:16:05,031 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_48c75864-ee87-483e-a933-1f70b2ef68d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i[916,929] [2024-10-31 22:16:05,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:05,133 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:16:05,152 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_48c75864-ee87-483e-a933-1f70b2ef68d4/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-64.i[916,929] [2024-10-31 22:16:05,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:16:05,242 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:16:05,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05 WrapperNode [2024-10-31 22:16:05,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:16:05,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:05,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:16:05,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:16:05,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,334 INFO L138 Inliner]: procedures = 30, calls = 163, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 517 [2024-10-31 22:16:05,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:16:05,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:16:05,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:16:05,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:16:05,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,365 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-10-31 22:16:05,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:16:05,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:16:05,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:16:05,411 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:16:05,412 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (1/1) ... [2024-10-31 22:16:05,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:16:05,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:05,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:16:05,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:16:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:16:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-10-31 22:16:05,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-10-31 22:16:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:16:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-10-31 22:16:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-10-31 22:16:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:16:05,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:16:05,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:16:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:16:05,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:16:05,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:16:05,611 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:16:05,613 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:16:06,710 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-10-31 22:16:06,710 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:16:06,732 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:16:06,732 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:16:06,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:06 BoogieIcfgContainer [2024-10-31 22:16:06,733 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:16:06,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:16:06,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:16:06,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:16:06,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:16:04" (1/3) ... [2024-10-31 22:16:06,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee613e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:06, skipping insertion in model container [2024-10-31 22:16:06,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:16:05" (2/3) ... [2024-10-31 22:16:06,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee613e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:16:06, skipping insertion in model container [2024-10-31 22:16:06,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:16:06" (3/3) ... [2024-10-31 22:16:06,747 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-64.i [2024-10-31 22:16:06,781 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:16:06,781 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:16:06,882 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:16:06,892 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;@739355b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:16:06,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:16:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:16:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-31 22:16:06,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:06,918 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:06,918 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:06,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1195243386, now seen corresponding path program 1 times [2024-10-31 22:16:06,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:06,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989263261] [2024-10-31 22:16:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:07,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-31 22:16:07,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:07,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989263261] [2024-10-31 22:16:07,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989263261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:07,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:07,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997277684] [2024-10-31 22:16:07,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:07,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:16:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:16:07,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:16:07,728 INFO L87 Difference]: Start difference. First operand has 129 states, 106 states have (on average 1.4339622641509433) internal successors, (152), 107 states have internal predecessors, (152), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-31 22:16:07,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:07,792 INFO L93 Difference]: Finished difference Result 251 states and 398 transitions. [2024-10-31 22:16:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:16:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2024-10-31 22:16:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:07,820 INFO L225 Difference]: With dead ends: 251 [2024-10-31 22:16:07,820 INFO L226 Difference]: Without dead ends: 125 [2024-10-31 22:16:07,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:16:07,828 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:07,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:16:07,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-10-31 22:16:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-10-31 22:16:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 103 states have internal predecessors, (145), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:16:07,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 185 transitions. [2024-10-31 22:16:07,903 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 185 transitions. Word has length 159 [2024-10-31 22:16:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:07,904 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 185 transitions. [2024-10-31 22:16:07,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-31 22:16:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 185 transitions. [2024-10-31 22:16:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-31 22:16:07,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:07,908 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:07,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:16:07,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:07,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:07,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1462741734, now seen corresponding path program 1 times [2024-10-31 22:16:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:07,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8727063] [2024-10-31 22:16:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-31 22:16:08,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8727063] [2024-10-31 22:16:08,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8727063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:08,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:08,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:16:08,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821667770] [2024-10-31 22:16:08,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:08,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:16:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:08,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:16:08,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:16:08,720 INFO L87 Difference]: Start difference. First operand 125 states and 185 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:08,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:08,808 INFO L93 Difference]: Finished difference Result 249 states and 370 transitions. [2024-10-31 22:16:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:16:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-31 22:16:08,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:08,812 INFO L225 Difference]: With dead ends: 249 [2024-10-31 22:16:08,812 INFO L226 Difference]: Without dead ends: 127 [2024-10-31 22:16:08,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 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 22:16:08,819 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:08,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 538 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:16:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-31 22:16:08,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-10-31 22:16:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:16:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 187 transitions. [2024-10-31 22:16:08,847 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 187 transitions. Word has length 159 [2024-10-31 22:16:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:08,850 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 187 transitions. [2024-10-31 22:16:08,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 187 transitions. [2024-10-31 22:16:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-31 22:16:08,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:08,854 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:08,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:16:08,855 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:08,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:08,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1083783032, now seen corresponding path program 1 times [2024-10-31 22:16:08,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:08,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323550288] [2024-10-31 22:16:08,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:08,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:09,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-31 22:16:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:09,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323550288] [2024-10-31 22:16:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323550288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:09,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114850898] [2024-10-31 22:16:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:09,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:16:09,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:09,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:16:09,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:09,440 INFO L87 Difference]: Start difference. First operand 127 states and 187 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:09,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:09,491 INFO L93 Difference]: Finished difference Result 254 states and 375 transitions. [2024-10-31 22:16:09,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:16:09,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-10-31 22:16:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:09,494 INFO L225 Difference]: With dead ends: 254 [2024-10-31 22:16:09,494 INFO L226 Difference]: Without dead ends: 130 [2024-10-31 22:16:09,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:09,496 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:09,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 711 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:16:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-10-31 22:16:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-10-31 22:16:09,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 108 states have (on average 1.3888888888888888) internal successors, (150), 108 states have internal predecessors, (150), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:16:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 190 transitions. [2024-10-31 22:16:09,509 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 190 transitions. Word has length 161 [2024-10-31 22:16:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:09,509 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 190 transitions. [2024-10-31 22:16:09,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 190 transitions. [2024-10-31 22:16:09,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-31 22:16:09,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:09,513 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:09,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:16:09,513 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:09,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1604015989, now seen corresponding path program 1 times [2024-10-31 22:16:09,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224734243] [2024-10-31 22:16:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:09,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:12,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-31 22:16:12,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:12,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224734243] [2024-10-31 22:16:12,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224734243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:12,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:12,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:16:12,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146220600] [2024-10-31 22:16:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:12,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:16:12,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:12,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:16:12,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:16:12,869 INFO L87 Difference]: Start difference. First operand 130 states and 190 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-31 22:16:14,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:14,512 INFO L93 Difference]: Finished difference Result 435 states and 636 transitions. [2024-10-31 22:16:14,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:16:14,513 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-10-31 22:16:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:14,516 INFO L225 Difference]: With dead ends: 435 [2024-10-31 22:16:14,520 INFO L226 Difference]: Without dead ends: 308 [2024-10-31 22:16:14,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:16:14,526 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 241 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:14,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 664 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-31 22:16:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-10-31 22:16:14,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 215. [2024-10-31 22:16:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 172 states have (on average 1.372093023255814) internal successors, (236), 172 states have internal predecessors, (236), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-31 22:16:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 316 transitions. [2024-10-31 22:16:14,573 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 316 transitions. Word has length 162 [2024-10-31 22:16:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:14,574 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 316 transitions. [2024-10-31 22:16:14,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-31 22:16:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 316 transitions. [2024-10-31 22:16:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-31 22:16:14,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:14,577 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:14,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:16:14,578 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:14,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:14,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1486816476, now seen corresponding path program 1 times [2024-10-31 22:16:14,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:14,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921071276] [2024-10-31 22:16:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:14,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:14,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:14,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:14,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-31 22:16:14,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921071276] [2024-10-31 22:16:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921071276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:14,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:14,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898530246] [2024-10-31 22:16:14,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:14,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:16:14,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:14,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:16:14,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:14,993 INFO L87 Difference]: Start difference. First operand 215 states and 316 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:15,046 INFO L93 Difference]: Finished difference Result 345 states and 507 transitions. [2024-10-31 22:16:15,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:16:15,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-10-31 22:16:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:15,052 INFO L225 Difference]: With dead ends: 345 [2024-10-31 22:16:15,053 INFO L226 Difference]: Without dead ends: 218 [2024-10-31 22:16:15,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:16:15,056 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:15,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 712 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:16:15,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-10-31 22:16:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2024-10-31 22:16:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 175 states have (on average 1.3657142857142857) internal successors, (239), 175 states have internal predecessors, (239), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-31 22:16:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 319 transitions. [2024-10-31 22:16:15,097 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 319 transitions. Word has length 163 [2024-10-31 22:16:15,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:15,098 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 319 transitions. [2024-10-31 22:16:15,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-31 22:16:15,099 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 319 transitions. [2024-10-31 22:16:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-31 22:16:15,103 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:15,104 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:15,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:16:15,104 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:15,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:15,105 INFO L85 PathProgramCache]: Analyzing trace with hash -282735875, now seen corresponding path program 1 times [2024-10-31 22:16:15,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:15,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88451513] [2024-10-31 22:16:15,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:15,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:17,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:16:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:17,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:16:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:16:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:16:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:16:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:16:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:16:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:16:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:16:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-31 22:16:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:16:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-31 22:16:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-31 22:16:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:16:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-31 22:16:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-31 22:16:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-31 22:16:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-31 22:16:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-31 22:16:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-31 22:16:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-31 22:16:18,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:18,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88451513] [2024-10-31 22:16:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88451513] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:16:18,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922174804] [2024-10-31 22:16:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:18,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:16:18,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:16:18,199 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:16:18,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:16:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:18,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-31 22:16:18,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:16:18,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-10-31 22:16:18,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-10-31 22:16:18,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:18,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 33 [2024-10-31 22:16:19,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-31 22:16:19,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 17 [2024-10-31 22:16:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 357 proven. 18 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-10-31 22:16:19,611 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:16:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 39 proven. 18 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-31 22:16:21,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922174804] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:16:21,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:16:21,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 16, 15] total 33 [2024-10-31 22:16:21,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461036663] [2024-10-31 22:16:21,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:16:21,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-31 22:16:21,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:21,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-31 22:16:21,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=914, Unknown=0, NotChecked=0, Total=1056 [2024-10-31 22:16:21,096 INFO L87 Difference]: Start difference. First operand 218 states and 319 transitions. Second operand has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) [2024-10-31 22:16:29,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:16:29,685 INFO L93 Difference]: Finished difference Result 588 states and 831 transitions. [2024-10-31 22:16:29,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-10-31 22:16:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) Word has length 163 [2024-10-31 22:16:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:16:29,692 INFO L225 Difference]: With dead ends: 588 [2024-10-31 22:16:29,695 INFO L226 Difference]: Without dead ends: 439 [2024-10-31 22:16:29,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=816, Invalid=5504, Unknown=0, NotChecked=0, Total=6320 [2024-10-31 22:16:29,700 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 1400 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:16:29,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 1977 Invalid, 3906 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [339 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-10-31 22:16:29,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-10-31 22:16:29,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 253. [2024-10-31 22:16:29,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 206 states have (on average 1.354368932038835) internal successors, (279), 206 states have internal predecessors, (279), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-31 22:16:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 359 transitions. [2024-10-31 22:16:29,758 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 359 transitions. Word has length 163 [2024-10-31 22:16:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:16:29,759 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 359 transitions. [2024-10-31 22:16:29,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 5.266666666666667) internal successors, (158), 33 states have internal predecessors, (158), 8 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (47), 5 states have call predecessors, (47), 8 states have call successors, (47) [2024-10-31 22:16:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 359 transitions. [2024-10-31 22:16:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-31 22:16:29,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:16:29,763 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:16:29,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:16:29,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48c75864-ee87-483e-a933-1f70b2ef68d4/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:16:29,964 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:16:29,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:29,965 INFO L85 PathProgramCache]: Analyzing trace with hash 949264861, now seen corresponding path program 1 times [2024-10-31 22:16:29,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:29,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311789608] [2024-10-31 22:16:29,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:29,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat