./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/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 c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:30:03,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:30:03,518 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 07:30:03,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:30:03,523 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:30:03,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:30:03,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:30:03,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:30:03,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:30:03,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:30:03,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:30:03,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:30:03,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:30:03,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:30:03,546 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:30:03,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:30:03,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:30:03,548 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:30:03,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:03,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:03,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:30:03,549 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:30:03,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:30:03,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:30:03,550 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:30:03,550 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:30:03,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:30:03,550 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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/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 -> c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c [2024-12-02 07:30:03,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:30:03,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:30:03,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:30:03,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:30:03,774 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:30:03,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-12-02 07:30:06,452 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/data/f9853e656/45937c91ffae480a86537a89e80e403a/FLAGa33db9342 [2024-12-02 07:30:06,633 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:30:06,634 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-12-02 07:30:06,642 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/data/f9853e656/45937c91ffae480a86537a89e80e403a/FLAGa33db9342 [2024-12-02 07:30:06,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/data/f9853e656/45937c91ffae480a86537a89e80e403a [2024-12-02 07:30:06,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:30:06,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:30:06,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:30:06,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:30:06,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:30:06,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7757d00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06, skipping insertion in model container [2024-12-02 07:30:06,667 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,684 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:30:06,813 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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-12-02 07:30:06,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:30:06,867 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:30:06,877 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_a44c4550-d0d4-4cf6-819c-9cc667773ab8/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-12-02 07:30:06,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:30:06,927 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:30:06,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06 WrapperNode [2024-12-02 07:30:06,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:30:06,929 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:30:06,929 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:30:06,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:30:06,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,978 INFO L138 Inliner]: procedures = 27, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2024-12-02 07:30:06,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:30:06,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:30:06,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:30:06,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:30:06,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:06,994 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,011 INFO L175 MemorySlicer]: Split 125 memory accesses to 2 slices as follows [2, 123]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 28 writes are split as follows [0, 28]. [2024-12-02 07:30:07,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:30:07,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:30:07,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:30:07,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:30:07,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (1/1) ... [2024-12-02 07:30:07,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:30:07,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:07,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:30:07,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:30:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:30:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:30:07,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:30:07,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:30:07,192 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:30:07,193 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:30:07,581 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-12-02 07:30:07,581 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:30:07,592 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:30:07,592 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 07:30:07,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:30:07 BoogieIcfgContainer [2024-12-02 07:30:07,592 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:30:07,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:30:07,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:30:07,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:30:07,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:30:06" (1/3) ... [2024-12-02 07:30:07,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2da65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:30:07, skipping insertion in model container [2024-12-02 07:30:07,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:30:06" (2/3) ... [2024-12-02 07:30:07,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2da65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:30:07, skipping insertion in model container [2024-12-02 07:30:07,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:30:07" (3/3) ... [2024-12-02 07:30:07,602 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2024-12-02 07:30:07,617 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:30:07,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-19.i that has 2 procedures, 102 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 07:30:07,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:30:07,676 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;@115de7e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:30:07,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:30:07,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:30:07,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:30:07,691 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:07,692 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:07,692 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:07,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1029236887, now seen corresponding path program 1 times [2024-12-02 07:30:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:07,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901552877] [2024-12-02 07:30:07,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:07,986 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:30:07,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:07,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901552877] [2024-12-02 07:30:07,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901552877] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:30:07,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765005295] [2024-12-02 07:30:07,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:07,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:07,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:07,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:30:07,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:30:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:08,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:30:08,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:30:08,202 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 07:30:08,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:30:08,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765005295] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:08,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:30:08,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:30:08,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269139950] [2024-12-02 07:30:08,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:08,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:30:08,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:08,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:30:08,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:30:08,223 INFO L87 Difference]: Start difference. First operand has 102 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 83 states have internal predecessors, (114), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:30:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:08,243 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2024-12-02 07:30:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:30:08,245 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-12-02 07:30:08,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:08,249 INFO L225 Difference]: With dead ends: 197 [2024-12-02 07:30:08,249 INFO L226 Difference]: Without dead ends: 98 [2024-12-02 07:30:08,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 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 07:30:08,255 INFO L435 NwaCegarLoop]: 139 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, 139 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 07:30:08,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:30:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-12-02 07:30:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-12-02 07:30:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:30:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 139 transitions. [2024-12-02 07:30:08,290 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 139 transitions. Word has length 132 [2024-12-02 07:30:08,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:08,291 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 139 transitions. [2024-12-02 07:30:08,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 07:30:08,291 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 139 transitions. [2024-12-02 07:30:08,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:30:08,294 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:08,294 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:08,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:30:08,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:30:08,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:08,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash 451503243, now seen corresponding path program 1 times [2024-12-02 07:30:08,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:08,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249106679] [2024-12-02 07:30:08,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:08,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:08,781 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:08,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:08,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249106679] [2024-12-02 07:30:08,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249106679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:08,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:08,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:30:08,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144594509] [2024-12-02 07:30:08,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:08,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:30:08,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:08,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:30:08,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:30:08,784 INFO L87 Difference]: Start difference. First operand 98 states and 139 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:08,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:08,826 INFO L93 Difference]: Finished difference Result 196 states and 279 transitions. [2024-12-02 07:30:08,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:30:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-12-02 07:30:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:08,829 INFO L225 Difference]: With dead ends: 196 [2024-12-02 07:30:08,829 INFO L226 Difference]: Without dead ends: 101 [2024-12-02 07:30:08,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:30:08,830 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:08,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 399 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:30:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-12-02 07:30:08,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-12-02 07:30:08,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 81 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 07:30:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 141 transitions. [2024-12-02 07:30:08,840 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 141 transitions. Word has length 132 [2024-12-02 07:30:08,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:08,842 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 141 transitions. [2024-12-02 07:30:08,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:08,842 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-12-02 07:30:08,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:30:08,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:08,844 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:08,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:30:08,844 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:08,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:08,845 INFO L85 PathProgramCache]: Analyzing trace with hash 453350285, now seen corresponding path program 1 times [2024-12-02 07:30:08,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:08,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741176103] [2024-12-02 07:30:08,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:08,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 21 proven. 27 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:30:51,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:51,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741176103] [2024-12-02 07:30:51,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741176103] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:30:51,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663388765] [2024-12-02 07:30:51,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:51,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:30:51,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:30:51,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:30:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:51,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 07:30:51,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:30:51,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 51 [2024-12-02 07:30:51,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2024-12-02 07:30:51,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2024-12-02 07:30:51,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:30:51,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 223 treesize of output 115 [2024-12-02 07:30:51,447 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:30:51,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:30:51,666 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:51,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663388765] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 07:30:51,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 07:30:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 8] total 14 [2024-12-02 07:30:51,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988955491] [2024-12-02 07:30:51,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:51,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:30:51,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:51,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:30:51,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:30:51,668 INFO L87 Difference]: Start difference. First operand 100 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:52,013 INFO L93 Difference]: Finished difference Result 258 states and 361 transitions. [2024-12-02 07:30:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 07:30:52,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-12-02 07:30:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:52,015 INFO L225 Difference]: With dead ends: 258 [2024-12-02 07:30:52,016 INFO L226 Difference]: Without dead ends: 161 [2024-12-02 07:30:52,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-12-02 07:30:52,017 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 67 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:52,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 648 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:30:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-12-02 07:30:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 158. [2024-12-02 07:30:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 132 states have (on average 1.3106060606060606) internal successors, (173), 133 states have internal predecessors, (173), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-12-02 07:30:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 219 transitions. [2024-12-02 07:30:52,032 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 219 transitions. Word has length 132 [2024-12-02 07:30:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:52,032 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 219 transitions. [2024-12-02 07:30:52,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 219 transitions. [2024-12-02 07:30:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:30:52,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:52,035 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:52,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:30:52,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:30:52,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:52,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:52,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1134997617, now seen corresponding path program 1 times [2024-12-02 07:30:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:52,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560252859] [2024-12-02 07:30:52,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:52,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:52,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:52,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560252859] [2024-12-02 07:30:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560252859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:52,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:52,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:30:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913801767] [2024-12-02 07:30:52,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:52,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:30:52,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:52,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:30:52,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:30:52,447 INFO L87 Difference]: Start difference. First operand 158 states and 219 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:52,792 INFO L93 Difference]: Finished difference Result 383 states and 530 transitions. [2024-12-02 07:30:52,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:30:52,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-12-02 07:30:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:52,796 INFO L225 Difference]: With dead ends: 383 [2024-12-02 07:30:52,796 INFO L226 Difference]: Without dead ends: 228 [2024-12-02 07:30:52,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:30:52,797 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 80 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:52,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 549 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:30:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-12-02 07:30:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2024-12-02 07:30:52,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 186 states have (on average 1.2956989247311828) internal successors, (241), 188 states have internal predecessors, (241), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:30:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2024-12-02 07:30:52,816 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 132 [2024-12-02 07:30:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:52,816 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2024-12-02 07:30:52,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:30:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2024-12-02 07:30:52,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:30:52,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:52,818 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:52,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:30:52,819 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:52,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:52,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1820578594, now seen corresponding path program 1 times [2024-12-02 07:30:52,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:52,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502569592] [2024-12-02 07:30:52,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:52,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:54,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502569592] [2024-12-02 07:30:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502569592] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:54,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:54,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:30:54,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001614343] [2024-12-02 07:30:54,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:54,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:30:54,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:54,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:30:54,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:30:54,892 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:30:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:55,570 INFO L93 Difference]: Finished difference Result 519 states and 713 transitions. [2024-12-02 07:30:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:30:55,570 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133 [2024-12-02 07:30:55,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:55,573 INFO L225 Difference]: With dead ends: 519 [2024-12-02 07:30:55,574 INFO L226 Difference]: Without dead ends: 297 [2024-12-02 07:30:55,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:30:55,575 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 47 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:55,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 777 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 07:30:55,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-12-02 07:30:55,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 237. [2024-12-02 07:30:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 198 states have (on average 1.297979797979798) internal successors, (257), 200 states have internal predecessors, (257), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:30:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 327 transitions. [2024-12-02 07:30:55,598 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 327 transitions. Word has length 133 [2024-12-02 07:30:55,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:55,598 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 327 transitions. [2024-12-02 07:30:55,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.375) internal successors, (51), 10 states have internal predecessors, (51), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 07:30:55,599 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 327 transitions. [2024-12-02 07:30:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:30:55,600 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:55,601 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:55,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:30:55,601 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:55,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:55,601 INFO L85 PathProgramCache]: Analyzing trace with hash -857559976, now seen corresponding path program 1 times [2024-12-02 07:30:55,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:55,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884897389] [2024-12-02 07:30:55,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:55,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:57,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:57,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884897389] [2024-12-02 07:30:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884897389] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:57,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:57,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-02 07:30:57,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951914361] [2024-12-02 07:30:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:57,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 07:30:57,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:57,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 07:30:57,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:30:57,251 INFO L87 Difference]: Start difference. First operand 237 states and 327 transitions. Second operand has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:30:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:30:58,121 INFO L93 Difference]: Finished difference Result 582 states and 800 transitions. [2024-12-02 07:30:58,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 07:30:58,122 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) Word has length 134 [2024-12-02 07:30:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:30:58,124 INFO L225 Difference]: With dead ends: 582 [2024-12-02 07:30:58,125 INFO L226 Difference]: Without dead ends: 344 [2024-12-02 07:30:58,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-12-02 07:30:58,126 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 67 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:30:58,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 977 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:30:58,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-12-02 07:30:58,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 258. [2024-12-02 07:30:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 219 states have (on average 1.3013698630136987) internal successors, (285), 221 states have internal predecessors, (285), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:30:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 355 transitions. [2024-12-02 07:30:58,140 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 355 transitions. Word has length 134 [2024-12-02 07:30:58,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:30:58,141 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 355 transitions. [2024-12-02 07:30:58,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.5) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 4 states have call successors, (17) [2024-12-02 07:30:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 355 transitions. [2024-12-02 07:30:58,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 07:30:58,143 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:30:58,143 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:58,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:30:58,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:30:58,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:30:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash 671706015, now seen corresponding path program 1 times [2024-12-02 07:30:58,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:30:58,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547226879] [2024-12-02 07:30:58,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:30:58,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:30:58,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:30:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:30:59,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:30:59,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547226879] [2024-12-02 07:30:59,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547226879] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:30:59,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:30:59,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 07:30:59,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402299506] [2024-12-02 07:30:59,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:30:59,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 07:30:59,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:30:59,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 07:30:59,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-02 07:30:59,656 INFO L87 Difference]: Start difference. First operand 258 states and 355 transitions. Second operand has 10 states, 6 states have (on average 8.666666666666666) internal successors, (52), 10 states have internal predecessors, (52), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 07:31:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:00,405 INFO L93 Difference]: Finished difference Result 613 states and 841 transitions. [2024-12-02 07:31:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 07:31:00,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 6 states have (on average 8.666666666666666) internal successors, (52), 10 states have internal predecessors, (52), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 5 states have call successors, (17) Word has length 134 [2024-12-02 07:31:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:00,408 INFO L225 Difference]: With dead ends: 613 [2024-12-02 07:31:00,408 INFO L226 Difference]: Without dead ends: 358 [2024-12-02 07:31:00,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-12-02 07:31:00,409 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 61 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:00,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 913 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 07:31:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-12-02 07:31:00,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 254. [2024-12-02 07:31:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 215 states have (on average 1.2930232558139534) internal successors, (278), 217 states have internal predecessors, (278), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-12-02 07:31:00,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 348 transitions. [2024-12-02 07:31:00,434 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 348 transitions. Word has length 134 [2024-12-02 07:31:00,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:00,435 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 348 transitions. [2024-12-02 07:31:00,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 6 states have (on average 8.666666666666666) internal successors, (52), 10 states have internal predecessors, (52), 5 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 5 states have call successors, (17) [2024-12-02 07:31:00,435 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 348 transitions. [2024-12-02 07:31:00,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:31:00,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:00,437 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:00,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:31:00,437 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:00,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:00,438 INFO L85 PathProgramCache]: Analyzing trace with hash -162933833, now seen corresponding path program 1 times [2024-12-02 07:31:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:00,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722563312] [2024-12-02 07:31:00,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:00,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 07:31:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722563312] [2024-12-02 07:31:00,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722563312] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:31:00,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:31:00,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:31:00,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993066677] [2024-12-02 07:31:00,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:31:00,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:31:00,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:00,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:31:00,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:31:00,992 INFO L87 Difference]: Start difference. First operand 254 states and 348 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:31:01,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:01,203 INFO L93 Difference]: Finished difference Result 584 states and 799 transitions. [2024-12-02 07:31:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:31:01,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-12-02 07:31:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:01,206 INFO L225 Difference]: With dead ends: 584 [2024-12-02 07:31:01,206 INFO L226 Difference]: Without dead ends: 333 [2024-12-02 07:31:01,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:31:01,207 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 79 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:01,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 470 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:31:01,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-12-02 07:31:01,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 330. [2024-12-02 07:31:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 280 states have (on average 1.2892857142857144) internal successors, (361), 283 states have internal predecessors, (361), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-02 07:31:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 451 transitions. [2024-12-02 07:31:01,226 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 451 transitions. Word has length 135 [2024-12-02 07:31:01,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:01,226 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 451 transitions. [2024-12-02 07:31:01,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-12-02 07:31:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 451 transitions. [2024-12-02 07:31:01,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:31:01,228 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:01,228 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:01,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:31:01,228 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:01,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:01,229 INFO L85 PathProgramCache]: Analyzing trace with hash 423872181, now seen corresponding path program 1 times [2024-12-02 07:31:01,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:01,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648765703] [2024-12-02 07:31:01,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:01,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:31:01,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:31:01,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648765703] [2024-12-02 07:31:01,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648765703] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:31:01,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089431968] [2024-12-02 07:31:01,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:01,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:31:01,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:31:01,711 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:31:01,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:31:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:31:01,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 07:31:01,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:31:01,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 07:31:01,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 07:31:01,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 07:31:01,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 07:31:01,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:31:01,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2024-12-02 07:31:02,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 07:31:02,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 10 [2024-12-02 07:31:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-12-02 07:31:02,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:31:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-02 07:31:02,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089431968] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:31:02,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:31:02,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 7] total 12 [2024-12-02 07:31:02,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418255005] [2024-12-02 07:31:02,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:31:02,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 07:31:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:31:02,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 07:31:02,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-12-02 07:31:02,220 INFO L87 Difference]: Start difference. First operand 330 states and 451 transitions. Second operand has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 12 states have internal predecessors, (68), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-12-02 07:31:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:31:02,801 INFO L93 Difference]: Finished difference Result 810 states and 1096 transitions. [2024-12-02 07:31:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 07:31:02,801 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 12 states have internal predecessors, (68), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) Word has length 135 [2024-12-02 07:31:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:31:02,805 INFO L225 Difference]: With dead ends: 810 [2024-12-02 07:31:02,805 INFO L226 Difference]: Without dead ends: 483 [2024-12-02 07:31:02,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 265 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2024-12-02 07:31:02,807 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 316 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 07:31:02,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 300 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 07:31:02,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-12-02 07:31:02,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 467. [2024-12-02 07:31:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 401 states have (on average 1.28428927680798) internal successors, (515), 406 states have internal predecessors, (515), 57 states have call successors, (57), 8 states have call predecessors, (57), 8 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-12-02 07:31:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 629 transitions. [2024-12-02 07:31:02,839 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 629 transitions. Word has length 135 [2024-12-02 07:31:02,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:31:02,839 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 629 transitions. [2024-12-02 07:31:02,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 12 states have internal predecessors, (68), 5 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (25), 2 states have call predecessors, (25), 5 states have call successors, (25) [2024-12-02 07:31:02,840 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 629 transitions. [2024-12-02 07:31:02,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-12-02 07:31:02,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:31:02,841 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:31:02,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:31:03,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a44c4550-d0d4-4cf6-819c-9cc667773ab8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:31:03,042 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:31:03,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:31:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash -980582283, now seen corresponding path program 1 times [2024-12-02 07:31:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:31:03,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419840109] [2024-12-02 07:31:03,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:31:03,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:31:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:32:30,568 WARN L286 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:33:01,194 WARN L286 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:33:53,500 WARN L286 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:34:31,745 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:34:51,633 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:35:11,064 WARN L286 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:36:26,886 WARN L286 SmtUtils]: Spent 15.58s on a formula simplification. DAG size of input: 180 DAG size of output: 158 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:36:46,166 WARN L286 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:36:51,936 WARN L286 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:37:03,602 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:37:15,645 WARN L286 SmtUtils]: Spent 12.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:37:37,191 WARN L286 SmtUtils]: Spent 7.64s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:37:57,889 WARN L286 SmtUtils]: Spent 10.16s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:38:03,310 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:38:09,104 WARN L286 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:38:21,625 WARN L286 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:39:32,060 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:39:43,142 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:39:52,906 WARN L286 SmtUtils]: Spent 5.13s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:40:11,758 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:40:27,691 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:40:36,564 WARN L286 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:42:21,739 WARN L286 SmtUtils]: Spent 49.86s on a formula simplification. DAG size of input: 195 DAG size of output: 151 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 07:42:32,589 WARN L286 SmtUtils]: Spent 5.55s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:43:15,584 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:43:22,521 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:43:38,427 WARN L286 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:43:44,387 WARN L286 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:43:51,742 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 07:44:36,003 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)