./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1 --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 e6ce3d69b4433c3dffdd37148adc2124f89ddf76ed34c375b86a51b1c58f0bd0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:40:21,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:40:21,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 06:40:21,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:40:21,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:40:21,236 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:40:21,237 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:40:21,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:40:21,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:40:21,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:40:21,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 06:40:21,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 06:40:21,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:40:21,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:40:21,238 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:40:21,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:40:21,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:40:21,240 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:21,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 06:40:21,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:21,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 06:40:21,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 06:40:21,242 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1 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 -> e6ce3d69b4433c3dffdd37148adc2124f89ddf76ed34c375b86a51b1c58f0bd0 [2024-12-02 06:40:21,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:40:21,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:40:21,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:40:21,494 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:40:21,494 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:40:21,495 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i [2024-12-02 06:40:24,179 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/data/117663912/8884ae6e13ec41b48e72ddefe07e8e49/FLAGaf1c5e31b [2024-12-02 06:40:24,346 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:40:24,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i [2024-12-02 06:40:24,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/data/117663912/8884ae6e13ec41b48e72ddefe07e8e49/FLAGaf1c5e31b [2024-12-02 06:40:24,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/data/117663912/8884ae6e13ec41b48e72ddefe07e8e49 [2024-12-02 06:40:24,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:40:24,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:40:24,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:24,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:40:24,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:40:24,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8683dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24, skipping insertion in model container [2024-12-02 06:40:24,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:40:24,538 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_1850a110-208b-45c9-aaf6-0165253f74ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i[915,928] [2024-12-02 06:40:24,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:24,623 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:40:24,633 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_1850a110-208b-45c9-aaf6-0165253f74ea/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-56.i[915,928] [2024-12-02 06:40:24,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:40:24,683 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:40:24,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24 WrapperNode [2024-12-02 06:40:24,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:40:24,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:24,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:40:24,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:40:24,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,747 INFO L138 Inliner]: procedures = 26, calls = 65, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 255 [2024-12-02 06:40:24,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:40:24,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:40:24,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:40:24,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:40:24,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,784 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]. [2024-12-02 06:40:24,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,795 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:40:24,811 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:40:24,811 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:40:24,811 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:40:24,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (1/1) ... [2024-12-02 06:40:24,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 06:40:24,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:24,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 06:40:24,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 06:40:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:40:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 06:40:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 06:40:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:40:24,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:40:24,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:40:24,954 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:40:24,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:40:25,333 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-02 06:40:25,333 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:40:25,345 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:40:25,346 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 06:40:25,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:25 BoogieIcfgContainer [2024-12-02 06:40:25,346 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:40:25,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 06:40:25,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 06:40:25,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 06:40:25,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:40:24" (1/3) ... [2024-12-02 06:40:25,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752ffff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:25, skipping insertion in model container [2024-12-02 06:40:25,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:40:24" (2/3) ... [2024-12-02 06:40:25,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752ffff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:40:25, skipping insertion in model container [2024-12-02 06:40:25,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:40:25" (3/3) ... [2024-12-02 06:40:25,355 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-56.i [2024-12-02 06:40:25,372 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 06:40:25,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-56.i that has 2 procedures, 116 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 06:40:25,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 06:40:25,438 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;@52e1c70f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 06:40:25,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 06:40:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 62 states have internal predecessors, (80), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 06:40:25,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:40:25,459 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:25,460 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:25,461 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:25,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:25,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1990255430, now seen corresponding path program 1 times [2024-12-02 06:40:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:25,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747230005] [2024-12-02 06:40:25,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:25,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:25,824 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2024-12-02 06:40:25,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:40:25,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747230005] [2024-12-02 06:40:25,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747230005] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:40:25,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634851000] [2024-12-02 06:40:25,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:25,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:40:25,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:40:25,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:40:25,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 06:40:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:40:26,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 06:40:26,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:40:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 5202 trivial. 0 not checked. [2024-12-02 06:40:26,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 06:40:26,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634851000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:40:26,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 06:40:26,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 06:40:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325595083] [2024-12-02 06:40:26,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:40:26,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 06:40:26,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:40:26,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 06:40:26,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:26,114 INFO L87 Difference]: Start difference. First operand has 116 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 62 states have internal predecessors, (80), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-02 06:40:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:40:26,150 INFO L93 Difference]: Finished difference Result 225 states and 414 transitions. [2024-12-02 06:40:26,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 06:40:26,152 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) Word has length 309 [2024-12-02 06:40:26,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:40:26,158 INFO L225 Difference]: With dead ends: 225 [2024-12-02 06:40:26,158 INFO L226 Difference]: Without dead ends: 112 [2024-12-02 06:40:26,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 06:40:26,164 INFO L435 NwaCegarLoop]: 177 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, 177 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 [2024-12-02 06:40:26,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:40:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-12-02 06:40:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-12-02 06:40:26,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 06:40:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 177 transitions. [2024-12-02 06:40:26,206 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 177 transitions. Word has length 309 [2024-12-02 06:40:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:40:26,207 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 177 transitions. [2024-12-02 06:40:26,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 2 states have call successors, (52) [2024-12-02 06:40:26,207 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 177 transitions. [2024-12-02 06:40:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:40:26,213 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:40:26,213 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:40:26,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 06:40:26,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1850a110-208b-45c9-aaf6-0165253f74ea/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 06:40:26,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:40:26,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:40:26,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1463449214, now seen corresponding path program 1 times [2024-12-02 06:40:26,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:40:26,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004141515] [2024-12-02 06:40:26,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:40:26,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:40:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:45:20,623 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-12-02 06:45:20,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:45:20,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004141515] [2024-12-02 06:45:20,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004141515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:45:20,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:45:20,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:45:20,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164365447] [2024-12-02 06:45:20,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:45:20,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:45:20,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:45:20,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:45:20,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:45:20,626 INFO L87 Difference]: Start difference. First operand 112 states and 177 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:45:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:45:23,694 INFO L93 Difference]: Finished difference Result 286 states and 435 transitions. [2024-12-02 06:45:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:45:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2024-12-02 06:45:23,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:45:23,697 INFO L225 Difference]: With dead ends: 286 [2024-12-02 06:45:23,698 INFO L226 Difference]: Without dead ends: 177 [2024-12-02 06:45:23,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:45:23,699 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 118 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 06:45:23,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1104 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 06:45:23,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-12-02 06:45:23,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 123. [2024-12-02 06:45:23,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 69 states have internal predecessors, (88), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-12-02 06:45:23,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 192 transitions. [2024-12-02 06:45:23,716 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 192 transitions. Word has length 309 [2024-12-02 06:45:23,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:45:23,718 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 192 transitions. [2024-12-02 06:45:23,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:45:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 192 transitions. [2024-12-02 06:45:23,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:45:23,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:45:23,723 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:45:23,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 06:45:23,723 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:45:23,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:45:23,724 INFO L85 PathProgramCache]: Analyzing trace with hash -654102588, now seen corresponding path program 1 times [2024-12-02 06:45:23,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:45:23,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091828795] [2024-12-02 06:45:23,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:45:23,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:45:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:45:24,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-12-02 06:45:24,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:45:24,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091828795] [2024-12-02 06:45:24,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091828795] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:45:24,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:45:24,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 06:45:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048759381] [2024-12-02 06:45:24,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:45:24,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 06:45:24,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:45:24,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 06:45:24,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:45:24,159 INFO L87 Difference]: Start difference. First operand 123 states and 192 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:45:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:45:24,232 INFO L93 Difference]: Finished difference Result 281 states and 431 transitions. [2024-12-02 06:45:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 06:45:24,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2024-12-02 06:45:24,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:45:24,236 INFO L225 Difference]: With dead ends: 281 [2024-12-02 06:45:24,236 INFO L226 Difference]: Without dead ends: 161 [2024-12-02 06:45:24,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 06:45:24,238 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 50 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 06:45:24,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 688 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 06:45:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-12-02 06:45:24,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 143. [2024-12-02 06:45:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 85 states have internal predecessors, (106), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 06:45:24,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 218 transitions. [2024-12-02 06:45:24,258 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 218 transitions. Word has length 309 [2024-12-02 06:45:24,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:45:24,259 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 218 transitions. [2024-12-02 06:45:24,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:45:24,260 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 218 transitions. [2024-12-02 06:45:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:45:24,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:45:24,262 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:45:24,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 06:45:24,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:45:24,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:45:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash -783390844, now seen corresponding path program 1 times [2024-12-02 06:45:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:45:24,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989515136] [2024-12-02 06:45:24,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:45:24,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:45:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-12-02 06:50:29,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:29,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989515136] [2024-12-02 06:50:29,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989515136] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:29,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:29,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-12-02 06:50:29,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545174071] [2024-12-02 06:50:29,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:29,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 06:50:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:29,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 06:50:29,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-12-02 06:50:29,183 INFO L87 Difference]: Start difference. First operand 143 states and 218 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:50:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:31,806 INFO L93 Difference]: Finished difference Result 329 states and 488 transitions. [2024-12-02 06:50:31,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:50:31,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2024-12-02 06:50:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:31,811 INFO L225 Difference]: With dead ends: 329 [2024-12-02 06:50:31,811 INFO L226 Difference]: Without dead ends: 189 [2024-12-02 06:50:31,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:50:31,813 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 83 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:31,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1120 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 06:50:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-12-02 06:50:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 142. [2024-12-02 06:50:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 83 states have (on average 1.2650602409638554) internal successors, (105), 84 states have internal predecessors, (105), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 06:50:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2024-12-02 06:50:31,835 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 309 [2024-12-02 06:50:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:31,835 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2024-12-02 06:50:31,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:50:31,836 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2024-12-02 06:50:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:50:31,838 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:31,838 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:31,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 06:50:31,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:31,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash -762384636, now seen corresponding path program 1 times [2024-12-02 06:50:31,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:31,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643243163] [2024-12-02 06:50:31,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:50:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-12-02 06:50:32,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:50:32,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643243163] [2024-12-02 06:50:32,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643243163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:50:32,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:50:32,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 06:50:32,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608227874] [2024-12-02 06:50:32,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:50:32,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 06:50:32,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:50:32,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 06:50:32,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:50:32,087 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:50:32,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:50:32,142 INFO L93 Difference]: Finished difference Result 305 states and 461 transitions. [2024-12-02 06:50:32,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 06:50:32,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2024-12-02 06:50:32,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:50:32,145 INFO L225 Difference]: With dead ends: 305 [2024-12-02 06:50:32,145 INFO L226 Difference]: Without dead ends: 166 [2024-12-02 06:50:32,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 06:50:32,146 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 36 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 06:50:32,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 504 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 06:50:32,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-12-02 06:50:32,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 145. [2024-12-02 06:50:32,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 86 states have (on average 1.2674418604651163) internal successors, (109), 87 states have internal predecessors, (109), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 06:50:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 221 transitions. [2024-12-02 06:50:32,164 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 221 transitions. Word has length 309 [2024-12-02 06:50:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:50:32,164 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 221 transitions. [2024-12-02 06:50:32,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:50:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 221 transitions. [2024-12-02 06:50:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:50:32,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:50:32,167 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:50:32,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 06:50:32,167 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:50:32,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:50:32,167 INFO L85 PathProgramCache]: Analyzing trace with hash 46961990, now seen corresponding path program 1 times [2024-12-02 06:50:32,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:50:32,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765770703] [2024-12-02 06:50:32,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:50:32,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:50:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:55:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2024-12-02 06:55:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 06:55:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765770703] [2024-12-02 06:55:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765770703] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 06:55:09,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 06:55:09,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 06:55:09,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380408322] [2024-12-02 06:55:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 06:55:09,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 06:55:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 06:55:09,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 06:55:09,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-12-02 06:55:09,691 INFO L87 Difference]: Start difference. First operand 145 states and 221 transitions. Second operand has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:55:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:55:11,815 INFO L93 Difference]: Finished difference Result 329 states and 489 transitions. [2024-12-02 06:55:11,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 06:55:11,816 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) Word has length 309 [2024-12-02 06:55:11,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 06:55:11,818 INFO L225 Difference]: With dead ends: 329 [2024-12-02 06:55:11,818 INFO L226 Difference]: Without dead ends: 187 [2024-12-02 06:55:11,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2024-12-02 06:55:11,820 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 76 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 06:55:11,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 1281 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 06:55:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-12-02 06:55:11,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 152. [2024-12-02 06:55:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 93 states have (on average 1.2580645161290323) internal successors, (117), 94 states have internal predecessors, (117), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-12-02 06:55:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 229 transitions. [2024-12-02 06:55:11,839 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 229 transitions. Word has length 309 [2024-12-02 06:55:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 06:55:11,840 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 229 transitions. [2024-12-02 06:55:11,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 14 states have internal predecessors, (52), 1 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 1 states have call predecessors, (52), 1 states have call successors, (52) [2024-12-02 06:55:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 229 transitions. [2024-12-02 06:55:11,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-12-02 06:55:11,843 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 06:55:11,843 INFO L218 NwaCegarLoop]: trace histogram [52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:55:11,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 06:55:11,843 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 06:55:11,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:55:11,844 INFO L85 PathProgramCache]: Analyzing trace with hash 727020360, now seen corresponding path program 1 times [2024-12-02 06:55:11,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 06:55:11,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714247483] [2024-12-02 06:55:11,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:55:11,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:55:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat