./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db306fb71a2c499169cfbccecd2a6ee3c5f06d8426c432bc35438331c49d239a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:10:17,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:10:18,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 19:10:18,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:10:18,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:10:18,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:10:18,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:10:18,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:10:18,124 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:10:18,125 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:10:18,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:10:18,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:10:18,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:10:18,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:10:18,129 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:10:18,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:10:18,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:10:18,130 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:10:18,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:10:18,131 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:10:18,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:10:18,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:10:18,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:10:18,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:10:18,140 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:10:18,140 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:10:18,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:10:18,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:10:18,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:10:18,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:10:18,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:10:18,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:10:18,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:10:18,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:10:18,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:10:18,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:10:18,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:10:18,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:10:18,147 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:10:18,147 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:10:18,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:10:18,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:10:18,149 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_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db306fb71a2c499169cfbccecd2a6ee3c5f06d8426c432bc35438331c49d239a [2024-11-08 19:10:18,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:10:18,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:10:18,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:10:18,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:10:18,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:10:18,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i Unable to find full path for "g++" [2024-11-08 19:10:20,652 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:10:20,895 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:10:20,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i [2024-11-08 19:10:20,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/data/3cbdfcb7b/9ea51ef9ef4a4bb7b2f0fc60d3d7883b/FLAG6d2a586d4 [2024-11-08 19:10:20,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/data/3cbdfcb7b/9ea51ef9ef4a4bb7b2f0fc60d3d7883b [2024-11-08 19:10:20,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:10:20,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:10:20,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:10:20,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:10:20,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:10:20,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:20" (1/1) ... [2024-11-08 19:10:20,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5052ba68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:20, skipping insertion in model container [2024-11-08 19:10:20,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:20" (1/1) ... [2024-11-08 19:10:20,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:10:21,243 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i[919,932] [2024-11-08 19:10:21,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:10:21,364 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:10:21,376 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i[919,932] [2024-11-08 19:10:21,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:10:21,446 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:10:21,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21 WrapperNode [2024-11-08 19:10:21,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:10:21,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:10:21,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:10:21,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:10:21,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,532 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 200 [2024-11-08 19:10:21,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:10:21,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:10:21,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:10:21,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:10:21,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,553 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,575 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:10:21,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:10:21,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:10:21,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:10:21,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:10:21,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (1/1) ... [2024-11-08 19:10:21,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:10:21,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:21,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:10:21,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:10:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:10:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:10:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:10:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:10:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:10:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:10:21,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:10:21,856 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:10:22,511 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-08 19:10:22,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:10:22,534 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:10:22,534 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:10:22,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:22 BoogieIcfgContainer [2024-11-08 19:10:22,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:10:22,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:10:22,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:10:22,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:10:22,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:10:20" (1/3) ... [2024-11-08 19:10:22,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74520a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:22, skipping insertion in model container [2024-11-08 19:10:22,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:21" (2/3) ... [2024-11-08 19:10:22,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74520a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:22, skipping insertion in model container [2024-11-08 19:10:22,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:22" (3/3) ... [2024-11-08 19:10:22,547 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-33.i [2024-11-08 19:10:22,568 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:10:22,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 19:10:22,666 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:10:22,677 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;@524bfe10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:10:22,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 19:10:22,682 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 60 states have internal predecessors, (86), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 19:10:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 19:10:22,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:22,702 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:22,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:22,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1903683510, now seen corresponding path program 1 times [2024-11-08 19:10:22,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:22,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372749547] [2024-11-08 19:10:22,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:22,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:10:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:10:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:10:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:10:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:10:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:10:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:10:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:10:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:10:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:10:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:10:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:10:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:10:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:10:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 19:10:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:10:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 19:10:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:10:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:10:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 19:10:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 19:10:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 19:10:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 19:10:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 19:10:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 19:10:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 19:10:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-08 19:10:23,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:23,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372749547] [2024-11-08 19:10:23,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372749547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:23,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:23,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:10:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491557913] [2024-11-08 19:10:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:23,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:10:23,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:10:23,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:10:23,484 INFO L87 Difference]: Start difference. First operand has 88 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 60 states have internal predecessors, (86), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-08 19:10:23,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:23,570 INFO L93 Difference]: Finished difference Result 167 states and 292 transitions. [2024-11-08 19:10:23,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:10:23,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2024-11-08 19:10:23,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:23,590 INFO L225 Difference]: With dead ends: 167 [2024-11-08 19:10:23,591 INFO L226 Difference]: Without dead ends: 82 [2024-11-08 19:10:23,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:10:23,606 INFO L432 NwaCegarLoop]: 123 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, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:23,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:10:23,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-08 19:10:23,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-08 19:10:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 54 states have internal predecessors, (71), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 19:10:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 123 transitions. [2024-11-08 19:10:23,672 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 123 transitions. Word has length 169 [2024-11-08 19:10:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:23,673 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 123 transitions. [2024-11-08 19:10:23,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-08 19:10:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 123 transitions. [2024-11-08 19:10:23,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 19:10:23,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:23,679 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:23,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:10:23,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:23,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:23,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1539294728, now seen corresponding path program 1 times [2024-11-08 19:10:23,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:23,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6235142] [2024-11-08 19:10:23,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:23,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:10:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:10:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:10:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:10:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:10:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:10:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:10:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:10:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:10:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:10:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:10:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:10:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:10:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:10:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 19:10:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:10:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 19:10:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:10:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:10:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 19:10:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 19:10:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 19:10:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 19:10:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 19:10:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 19:10:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 19:10:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-08 19:10:25,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:25,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6235142] [2024-11-08 19:10:25,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6235142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:25,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:25,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:10:25,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817422291] [2024-11-08 19:10:25,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:25,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:10:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:25,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:10:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:10:25,523 INFO L87 Difference]: Start difference. First operand 82 states and 123 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-08 19:10:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:26,057 INFO L93 Difference]: Finished difference Result 245 states and 371 transitions. [2024-11-08 19:10:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:10:26,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-11-08 19:10:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:26,062 INFO L225 Difference]: With dead ends: 245 [2024-11-08 19:10:26,062 INFO L226 Difference]: Without dead ends: 166 [2024-11-08 19:10:26,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:10:26,068 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 99 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:26,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 299 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:10:26,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-08 19:10:26,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 152. [2024-11-08 19:10:26,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 97 states have (on average 1.309278350515464) internal successors, (127), 97 states have internal predecessors, (127), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 19:10:26,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 231 transitions. [2024-11-08 19:10:26,137 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 231 transitions. Word has length 169 [2024-11-08 19:10:26,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:26,138 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 231 transitions. [2024-11-08 19:10:26,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-08 19:10:26,138 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 231 transitions. [2024-11-08 19:10:26,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 19:10:26,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:26,144 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:26,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:10:26,145 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:26,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:26,145 INFO L85 PathProgramCache]: Analyzing trace with hash -603025446, now seen corresponding path program 1 times [2024-11-08 19:10:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:26,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057097788] [2024-11-08 19:10:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:26,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:10:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:10:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:10:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:10:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:10:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:10:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:10:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:10:26,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:10:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:10:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:10:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:10:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:10:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:10:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 19:10:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:10:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 19:10:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:10:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:10:26,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 19:10:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 19:10:26,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 19:10:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 19:10:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 19:10:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 19:10:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 19:10:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-08 19:10:26,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:26,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057097788] [2024-11-08 19:10:26,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057097788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:26,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:26,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:10:26,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112529797] [2024-11-08 19:10:26,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:26,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:10:26,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:10:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:10:26,763 INFO L87 Difference]: Start difference. First operand 152 states and 231 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-08 19:10:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:10:27,095 INFO L93 Difference]: Finished difference Result 254 states and 382 transitions. [2024-11-08 19:10:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:10:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170 [2024-11-08 19:10:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:10:27,099 INFO L225 Difference]: With dead ends: 254 [2024-11-08 19:10:27,099 INFO L226 Difference]: Without dead ends: 162 [2024-11-08 19:10:27,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:10:27,101 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 89 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:10:27,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 307 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:10:27,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-08 19:10:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 153. [2024-11-08 19:10:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 98 states have (on average 1.2959183673469388) internal successors, (127), 98 states have internal predecessors, (127), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-08 19:10:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 231 transitions. [2024-11-08 19:10:27,154 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 231 transitions. Word has length 170 [2024-11-08 19:10:27,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:10:27,155 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 231 transitions. [2024-11-08 19:10:27,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-08 19:10:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 231 transitions. [2024-11-08 19:10:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-08 19:10:27,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:10:27,161 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:27,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:10:27,166 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:10:27,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:27,166 INFO L85 PathProgramCache]: Analyzing trace with hash 187850021, now seen corresponding path program 1 times [2024-11-08 19:10:27,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:27,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103737506] [2024-11-08 19:10:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:27,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:27,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 19:10:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 19:10:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 19:10:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 19:10:27,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 19:10:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 19:10:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 19:10:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 19:10:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 19:10:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 19:10:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 19:10:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 19:10:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 19:10:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 19:10:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 19:10:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 19:10:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 19:10:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 19:10:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 19:10:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 19:10:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 19:10:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 19:10:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 19:10:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 19:10:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-08 19:10:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 19:10:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 57 proven. 18 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-08 19:10:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103737506] [2024-11-08 19:10:28,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103737506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492893567] [2024-11-08 19:10:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:28,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:28,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:28,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:10:28,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_531867ff-efed-438d-9e55-e93634ba342c/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:10:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:28,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-08 19:10:28,377 INFO L278 TraceCheckSpWp]: Computing forward predicates...