./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/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_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/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 64bit --witnessprinter.graph.data.programhash 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:50:01,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:50:01,431 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:50:01,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:50:01,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:50:01,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:50:01,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:50:01,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:50:01,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:50:01,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:50:01,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:50:01,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:50:01,464 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:50:01,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:50:01,464 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:50:01,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:50:01,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:50:01,465 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:50:01,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:50:01,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:50:01,466 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:50:01,466 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:50:01,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:50:01,467 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_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b [2024-12-02 12:50:01,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:50:01,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:50:01,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:50:01,770 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:50:01,770 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:50:01,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-12-02 12:50:04,812 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/data/78dfbaeaa/564aa49984794977bee4accf9114f97f/FLAG17944ecf5 [2024-12-02 12:50:05,254 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:50:05,255 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-12-02 12:50:05,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/data/78dfbaeaa/564aa49984794977bee4accf9114f97f/FLAG17944ecf5 [2024-12-02 12:50:05,302 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/data/78dfbaeaa/564aa49984794977bee4accf9114f97f [2024-12-02 12:50:05,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:50:05,306 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:50:05,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:50:05,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:50:05,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:50:05,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:05" (1/1) ... [2024-12-02 12:50:05,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bdbf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:05, skipping insertion in model container [2024-12-02 12:50:05,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:50:05" (1/1) ... [2024-12-02 12:50:05,399 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:50:06,119 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_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-12-02 12:50:06,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:50:06,572 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:50:06,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5500-5501] [2024-12-02 12:50:06,729 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_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-12-02 12:50:06,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:50:06,955 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:50:06,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06 WrapperNode [2024-12-02 12:50:06,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:50:06,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:50:06,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:50:06,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:50:06,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,071 INFO L138 Inliner]: procedures = 156, calls = 736, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1661 [2024-12-02 12:50:07,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:50:07,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:50:07,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:50:07,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:50:07,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,275 INFO L175 MemorySlicer]: Split 256 memory accesses to 7 slices as follows [2, 44, 17, 3, 158, 6, 26]. 62 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 0, 0, 0, 6, 26]. The 114 writes are split as follows [0, 44, 17, 2, 51, 0, 0]. [2024-12-02 12:50:07,275 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,333 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,368 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:50:07,394 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:50:07,394 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:50:07,394 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:50:07,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (1/1) ... [2024-12-02 12:50:07,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:50:07,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:50:07,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:50:07,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:50:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2024-12-02 12:50:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2024-12-02 12:50:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2024-12-02 12:50:07,450 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:50:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 12:50:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-12-02 12:50:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2024-12-02 12:50:07,451 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 12:50:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:50:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 12:50:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:50:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2024-12-02 12:50:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2024-12-02 12:50:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-12-02 12:50:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2024-12-02 12:50:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 12:50:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 12:50:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 12:50:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 12:50:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 12:50:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 12:50:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 12:50:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-12-02 12:50:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 12:50:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-12-02 12:50:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2024-12-02 12:50:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2024-12-02 12:50:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-12-02 12:50:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2024-12-02 12:50:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2024-12-02 12:50:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 12:50:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:50:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2024-12-02 12:50:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2024-12-02 12:50:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-12-02 12:50:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2024-12-02 12:50:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 12:50:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2024-12-02 12:50:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2024-12-02 12:50:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2024-12-02 12:50:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2024-12-02 12:50:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 12:50:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2024-12-02 12:50:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2024-12-02 12:50:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:50:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2024-12-02 12:50:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:50:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-12-02 12:50:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2024-12-02 12:50:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 12:50:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-12-02 12:50:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-12-02 12:50:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2024-12-02 12:50:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2024-12-02 12:50:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-12-02 12:50:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:50:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 12:50:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 12:50:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2024-12-02 12:50:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2024-12-02 12:50:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:50:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:50:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2024-12-02 12:50:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2024-12-02 12:50:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2024-12-02 12:50:07,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2024-12-02 12:50:07,969 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:50:07,972 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:50:08,125 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 12:50:09,056 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-12-02 12:50:14,646 INFO L? ?]: Removed 865 outVars from TransFormulas that were not future-live. [2024-12-02 12:50:14,646 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:50:14,672 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:50:14,672 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 12:50:14,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:14 BoogieIcfgContainer [2024-12-02 12:50:14,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:50:14,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:50:14,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:50:14,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:50:14,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:50:05" (1/3) ... [2024-12-02 12:50:14,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ddd89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:14, skipping insertion in model container [2024-12-02 12:50:14,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:50:06" (2/3) ... [2024-12-02 12:50:14,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ddd89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:50:14, skipping insertion in model container [2024-12-02 12:50:14,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:50:14" (3/3) ... [2024-12-02 12:50:14,682 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-12-02 12:50:14,697 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:50:14,699 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i that has 64 procedures, 923 locations, 1 initial locations, 15 loop locations, and 1 error locations. [2024-12-02 12:50:14,764 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:50:14,775 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;@f781553, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:50:14,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:50:14,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 891 states, 634 states have (on average 1.3738170347003154) internal successors, (871), 658 states have internal predecessors, (871), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) [2024-12-02 12:50:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 12:50:14,792 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:14,792 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:14,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:14,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:14,797 INFO L85 PathProgramCache]: Analyzing trace with hash 340341705, now seen corresponding path program 1 times [2024-12-02 12:50:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:14,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202879687] [2024-12-02 12:50:14,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:15,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202879687] [2024-12-02 12:50:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202879687] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:15,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:15,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:15,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399851474] [2024-12-02 12:50:15,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:15,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:15,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:15,808 INFO L87 Difference]: Start difference. First operand has 891 states, 634 states have (on average 1.3738170347003154) internal successors, (871), 658 states have internal predecessors, (871), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:50:19,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:50:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:20,040 INFO L93 Difference]: Finished difference Result 2600 states and 3748 transitions. [2024-12-02 12:50:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:20,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-12-02 12:50:20,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:20,065 INFO L225 Difference]: With dead ends: 2600 [2024-12-02 12:50:20,065 INFO L226 Difference]: Without dead ends: 1692 [2024-12-02 12:50:20,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:20,076 INFO L435 NwaCegarLoop]: 1258 mSDtfsCounter, 1180 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2470 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:20,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2470 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:50:20,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2024-12-02 12:50:20,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2024-12-02 12:50:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1213 states have (on average 1.3536685902720527) internal successors, (1642), 1240 states have internal predecessors, (1642), 370 states have call successors, (370), 109 states have call predecessors, (370), 108 states have return successors, (365), 355 states have call predecessors, (365), 365 states have call successors, (365) [2024-12-02 12:50:20,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2377 transitions. [2024-12-02 12:50:20,228 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2377 transitions. Word has length 56 [2024-12-02 12:50:20,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:20,229 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 2377 transitions. [2024-12-02 12:50:20,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 12:50:20,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2377 transitions. [2024-12-02 12:50:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 12:50:20,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:20,233 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:20,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:50:20,234 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:20,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:20,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1766038879, now seen corresponding path program 1 times [2024-12-02 12:50:20,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:20,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824724743] [2024-12-02 12:50:20,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:20,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:21,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:21,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824724743] [2024-12-02 12:50:21,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824724743] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:21,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:21,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:21,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438848849] [2024-12-02 12:50:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:21,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:21,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:21,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:21,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:21,181 INFO L87 Difference]: Start difference. First operand 1692 states and 2377 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:21,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:21,441 INFO L93 Difference]: Finished difference Result 5045 states and 7180 transitions. [2024-12-02 12:50:21,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:21,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2024-12-02 12:50:21,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:21,467 INFO L225 Difference]: With dead ends: 5045 [2024-12-02 12:50:21,467 INFO L226 Difference]: Without dead ends: 3368 [2024-12-02 12:50:21,475 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:21,476 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 1211 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:21,476 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 2492 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:50:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2024-12-02 12:50:21,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 3358. [2024-12-02 12:50:21,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3358 states, 2411 states have (on average 1.3529655744504354) internal successors, (3262), 2461 states have internal predecessors, (3262), 730 states have call successors, (730), 217 states have call predecessors, (730), 216 states have return successors, (761), 705 states have call predecessors, (761), 725 states have call successors, (761) [2024-12-02 12:50:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3358 states to 3358 states and 4753 transitions. [2024-12-02 12:50:21,698 INFO L78 Accepts]: Start accepts. Automaton has 3358 states and 4753 transitions. Word has length 59 [2024-12-02 12:50:21,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:21,699 INFO L471 AbstractCegarLoop]: Abstraction has 3358 states and 4753 transitions. [2024-12-02 12:50:21,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3358 states and 4753 transitions. [2024-12-02 12:50:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 12:50:21,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:21,702 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:21,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:50:21,703 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:21,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:21,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1087850661, now seen corresponding path program 1 times [2024-12-02 12:50:21,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:21,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975061693] [2024-12-02 12:50:21,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:21,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:22,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:22,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975061693] [2024-12-02 12:50:22,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975061693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:22,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:22,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:22,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65066726] [2024-12-02 12:50:22,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:22,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:22,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:22,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:22,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:22,401 INFO L87 Difference]: Start difference. First operand 3358 states and 4753 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:22,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:22,767 INFO L93 Difference]: Finished difference Result 10035 states and 14414 transitions. [2024-12-02 12:50:22,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:22,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2024-12-02 12:50:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:22,801 INFO L225 Difference]: With dead ends: 10035 [2024-12-02 12:50:22,801 INFO L226 Difference]: Without dead ends: 6692 [2024-12-02 12:50:22,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:22,812 INFO L435 NwaCegarLoop]: 1348 mSDtfsCounter, 1203 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:22,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 2548 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:50:22,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6692 states. [2024-12-02 12:50:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6692 to 6683. [2024-12-02 12:50:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4800 states have (on average 1.3504166666666666) internal successors, (6482), 4896 states have internal predecessors, (6482), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-12-02 12:50:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9529 transitions. [2024-12-02 12:50:23,193 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9529 transitions. Word has length 60 [2024-12-02 12:50:23,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:23,193 INFO L471 AbstractCegarLoop]: Abstraction has 6683 states and 9529 transitions. [2024-12-02 12:50:23,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:23,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9529 transitions. [2024-12-02 12:50:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 12:50:23,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:23,196 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:23,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:50:23,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:23,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:23,196 INFO L85 PathProgramCache]: Analyzing trace with hash 635891682, now seen corresponding path program 1 times [2024-12-02 12:50:23,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:23,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287656848] [2024-12-02 12:50:23,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:23,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:23,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:23,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287656848] [2024-12-02 12:50:23,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287656848] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:23,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:23,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:23,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122210799] [2024-12-02 12:50:23,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:23,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:23,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:23,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:23,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:23,576 INFO L87 Difference]: Start difference. First operand 6683 states and 9529 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:23,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:23,911 INFO L93 Difference]: Finished difference Result 6690 states and 9535 transitions. [2024-12-02 12:50:23,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:23,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2024-12-02 12:50:23,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:23,950 INFO L225 Difference]: With dead ends: 6690 [2024-12-02 12:50:23,950 INFO L226 Difference]: Without dead ends: 6687 [2024-12-02 12:50:23,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:23,955 INFO L435 NwaCegarLoop]: 1350 mSDtfsCounter, 1200 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:23,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 2549 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:50:23,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2024-12-02 12:50:24,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 6684. [2024-12-02 12:50:24,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6684 states, 4801 states have (on average 1.3503436784003333) internal successors, (6483), 4897 states have internal predecessors, (6483), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-12-02 12:50:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6684 states to 6684 states and 9530 transitions. [2024-12-02 12:50:24,300 INFO L78 Accepts]: Start accepts. Automaton has 6684 states and 9530 transitions. Word has length 61 [2024-12-02 12:50:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:24,300 INFO L471 AbstractCegarLoop]: Abstraction has 6684 states and 9530 transitions. [2024-12-02 12:50:24,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:24,300 INFO L276 IsEmpty]: Start isEmpty. Operand 6684 states and 9530 transitions. [2024-12-02 12:50:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-02 12:50:24,303 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:24,303 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:24,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:50:24,303 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:24,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:24,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1762665666, now seen corresponding path program 1 times [2024-12-02 12:50:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046294234] [2024-12-02 12:50:24,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:24,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:24,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046294234] [2024-12-02 12:50:24,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046294234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:24,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:24,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:24,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871576] [2024-12-02 12:50:24,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:24,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:24,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:24,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:24,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:24,661 INFO L87 Difference]: Start difference. First operand 6684 states and 9530 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:24,874 INFO L93 Difference]: Finished difference Result 6686 states and 9531 transitions. [2024-12-02 12:50:24,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2024-12-02 12:50:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:24,901 INFO L225 Difference]: With dead ends: 6686 [2024-12-02 12:50:24,901 INFO L226 Difference]: Without dead ends: 6683 [2024-12-02 12:50:24,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:24,905 INFO L435 NwaCegarLoop]: 1229 mSDtfsCounter, 1195 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:24,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 1229 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:50:24,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2024-12-02 12:50:25,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 6683. [2024-12-02 12:50:25,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4801 states have (on average 1.3501353884607374) internal successors, (6482), 4896 states have internal predecessors, (6482), 1449 states have call successors, (1449), 433 states have call predecessors, (1449), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-12-02 12:50:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9528 transitions. [2024-12-02 12:50:25,194 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9528 transitions. Word has length 62 [2024-12-02 12:50:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:25,194 INFO L471 AbstractCegarLoop]: Abstraction has 6683 states and 9528 transitions. [2024-12-02 12:50:25,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9528 transitions. [2024-12-02 12:50:25,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-02 12:50:25,196 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:25,197 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:25,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:50:25,197 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:25,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:25,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1191472741, now seen corresponding path program 1 times [2024-12-02 12:50:25,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:25,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183609597] [2024-12-02 12:50:25,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:25,677 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 12:50:25,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:25,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183609597] [2024-12-02 12:50:25,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183609597] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:25,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198201749] [2024-12-02 12:50:25,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:25,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:25,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:25,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:25,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:25,679 INFO L87 Difference]: Start difference. First operand 6683 states and 9528 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:26,025 INFO L93 Difference]: Finished difference Result 6685 states and 9529 transitions. [2024-12-02 12:50:26,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:26,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2024-12-02 12:50:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:26,069 INFO L225 Difference]: With dead ends: 6685 [2024-12-02 12:50:26,069 INFO L226 Difference]: Without dead ends: 6663 [2024-12-02 12:50:26,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:26,075 INFO L435 NwaCegarLoop]: 1228 mSDtfsCounter, 1192 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 1228 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 12:50:26,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 1228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:50:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2024-12-02 12:50:26,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 6663. [2024-12-02 12:50:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 4784 states have (on average 1.3501254180602007) internal successors, (6459), 4878 states have internal predecessors, (6459), 1447 states have call successors, (1447), 432 states have call predecessors, (1447), 431 states have return successors, (1596), 1404 states have call predecessors, (1596), 1444 states have call successors, (1596) [2024-12-02 12:50:26,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 9502 transitions. [2024-12-02 12:50:26,734 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 9502 transitions. Word has length 63 [2024-12-02 12:50:26,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:26,734 INFO L471 AbstractCegarLoop]: Abstraction has 6663 states and 9502 transitions. [2024-12-02 12:50:26,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 12:50:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 9502 transitions. [2024-12-02 12:50:26,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-12-02 12:50:26,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:26,751 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:26,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:50:26,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:26,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:26,752 INFO L85 PathProgramCache]: Analyzing trace with hash -635082376, now seen corresponding path program 1 times [2024-12-02 12:50:26,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:26,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685336682] [2024-12-02 12:50:26,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:26,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-12-02 12:50:27,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:27,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685336682] [2024-12-02 12:50:27,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685336682] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:27,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:27,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:27,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891800748] [2024-12-02 12:50:27,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:27,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:27,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:27,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:27,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:27,475 INFO L87 Difference]: Start difference. First operand 6663 states and 9502 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:50:28,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:28,106 INFO L93 Difference]: Finished difference Result 17066 states and 24171 transitions. [2024-12-02 12:50:28,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:28,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 183 [2024-12-02 12:50:28,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:28,164 INFO L225 Difference]: With dead ends: 17066 [2024-12-02 12:50:28,164 INFO L226 Difference]: Without dead ends: 10418 [2024-12-02 12:50:28,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:28,193 INFO L435 NwaCegarLoop]: 1287 mSDtfsCounter, 696 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2465 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:28,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2465 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:50:28,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10418 states. [2024-12-02 12:50:28,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10418 to 10383. [2024-12-02 12:50:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10383 states, 7564 states have (on average 1.3611845584346907) internal successors, (10296), 7678 states have internal predecessors, (10296), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-12-02 12:50:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10383 states to 10383 states and 14643 transitions. [2024-12-02 12:50:28,840 INFO L78 Accepts]: Start accepts. Automaton has 10383 states and 14643 transitions. Word has length 183 [2024-12-02 12:50:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:28,841 INFO L471 AbstractCegarLoop]: Abstraction has 10383 states and 14643 transitions. [2024-12-02 12:50:28,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:50:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10383 states and 14643 transitions. [2024-12-02 12:50:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-12-02 12:50:28,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:28,861 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:28,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:50:28,861 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:28,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:28,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1084829672, now seen corresponding path program 1 times [2024-12-02 12:50:28,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:28,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943695213] [2024-12-02 12:50:28,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:28,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-12-02 12:50:29,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:29,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943695213] [2024-12-02 12:50:29,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943695213] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:29,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:29,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:50:29,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659220117] [2024-12-02 12:50:29,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:29,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:50:29,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:29,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:50:29,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:50:29,626 INFO L87 Difference]: Start difference. First operand 10383 states and 14643 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 12:50:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:30,289 INFO L93 Difference]: Finished difference Result 20772 states and 29291 transitions. [2024-12-02 12:50:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:50:30,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 216 [2024-12-02 12:50:30,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:30,343 INFO L225 Difference]: With dead ends: 20772 [2024-12-02 12:50:30,343 INFO L226 Difference]: Without dead ends: 10404 [2024-12-02 12:50:30,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:50:30,376 INFO L435 NwaCegarLoop]: 1236 mSDtfsCounter, 1220 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 2478 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:30,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 2478 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:50:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10404 states. [2024-12-02 12:50:30,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10404 to 10391. [2024-12-02 12:50:30,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10391 states, 7572 states have (on average 1.3600105652403591) internal successors, (10298), 7686 states have internal predecessors, (10298), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-12-02 12:50:31,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10391 states to 10391 states and 14645 transitions. [2024-12-02 12:50:31,053 INFO L78 Accepts]: Start accepts. Automaton has 10391 states and 14645 transitions. Word has length 216 [2024-12-02 12:50:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:31,054 INFO L471 AbstractCegarLoop]: Abstraction has 10391 states and 14645 transitions. [2024-12-02 12:50:31,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 12:50:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 10391 states and 14645 transitions. [2024-12-02 12:50:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-12-02 12:50:31,075 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:31,075 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:31,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:50:31,075 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:31,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:31,076 INFO L85 PathProgramCache]: Analyzing trace with hash -803610266, now seen corresponding path program 1 times [2024-12-02 12:50:31,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:31,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731543184] [2024-12-02 12:50:31,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:31,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-12-02 12:50:31,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:31,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731543184] [2024-12-02 12:50:31,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731543184] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:31,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:31,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:31,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599132941] [2024-12-02 12:50:31,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:31,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:31,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:31,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:31,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:31,877 INFO L87 Difference]: Start difference. First operand 10391 states and 14645 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:50:35,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:50:36,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:36,668 INFO L93 Difference]: Finished difference Result 26003 states and 36620 transitions. [2024-12-02 12:50:36,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:36,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 218 [2024-12-02 12:50:36,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:36,714 INFO L225 Difference]: With dead ends: 26003 [2024-12-02 12:50:36,714 INFO L226 Difference]: Without dead ends: 15627 [2024-12-02 12:50:36,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:36,738 INFO L435 NwaCegarLoop]: 2348 mSDtfsCounter, 1177 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:36,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 3545 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:50:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15627 states. [2024-12-02 12:50:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15627 to 15567. [2024-12-02 12:50:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15567 states, 11332 states have (on average 1.360571831980233) internal successors, (15418), 11506 states have internal predecessors, (15418), 3143 states have call successors, (3143), 1092 states have call predecessors, (3143), 1091 states have return successors, (3368), 3072 states have call predecessors, (3368), 3140 states have call successors, (3368) [2024-12-02 12:50:37,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15567 states to 15567 states and 21929 transitions. [2024-12-02 12:50:37,740 INFO L78 Accepts]: Start accepts. Automaton has 15567 states and 21929 transitions. Word has length 218 [2024-12-02 12:50:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:37,741 INFO L471 AbstractCegarLoop]: Abstraction has 15567 states and 21929 transitions. [2024-12-02 12:50:37,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:50:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 15567 states and 21929 transitions. [2024-12-02 12:50:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 12:50:37,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:37,766 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:37,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:50:37,766 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:37,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:37,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2053910915, now seen corresponding path program 1 times [2024-12-02 12:50:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:37,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254365069] [2024-12-02 12:50:37,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:38,310 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-12-02 12:50:38,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:38,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254365069] [2024-12-02 12:50:38,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254365069] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:38,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:50:38,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:50:38,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726427164] [2024-12-02 12:50:38,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:38,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:50:38,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:38,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:50:38,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:38,312 INFO L87 Difference]: Start difference. First operand 15567 states and 21929 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:50:42,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:50:42,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:42,896 INFO L93 Difference]: Finished difference Result 26634 states and 37455 transitions. [2024-12-02 12:50:42,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:50:42,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2024-12-02 12:50:42,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:42,958 INFO L225 Difference]: With dead ends: 26634 [2024-12-02 12:50:42,958 INFO L226 Difference]: Without dead ends: 11080 [2024-12-02 12:50:42,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:50:42,997 INFO L435 NwaCegarLoop]: 1235 mSDtfsCounter, 11 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:42,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2455 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 12:50:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11080 states. [2024-12-02 12:50:43,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11080 to 11031. [2024-12-02 12:50:43,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11031 states, 8037 states have (on average 1.3588403633196466) internal successors, (10921), 8158 states have internal predecessors, (10921), 2207 states have call successors, (2207), 787 states have call predecessors, (2207), 786 states have return successors, (2356), 2159 states have call predecessors, (2356), 2204 states have call successors, (2356) [2024-12-02 12:50:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11031 states to 11031 states and 15484 transitions. [2024-12-02 12:50:43,783 INFO L78 Accepts]: Start accepts. Automaton has 11031 states and 15484 transitions. Word has length 222 [2024-12-02 12:50:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:43,783 INFO L471 AbstractCegarLoop]: Abstraction has 11031 states and 15484 transitions. [2024-12-02 12:50:43,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:50:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 11031 states and 15484 transitions. [2024-12-02 12:50:43,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 12:50:43,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:43,800 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:43,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:50:43,801 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:43,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:43,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1242958873, now seen corresponding path program 1 times [2024-12-02 12:50:43,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:43,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363019197] [2024-12-02 12:50:43,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:43,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:50:44,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:44,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363019197] [2024-12-02 12:50:44,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363019197] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:50:44,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034012164] [2024-12-02 12:50:44,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:44,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:50:44,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:50:44,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:50:44,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:50:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:45,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 12:50:45,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:50:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:50:45,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:50:45,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034012164] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:45,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:50:45,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-12-02 12:50:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640078686] [2024-12-02 12:50:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:45,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:50:45,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:45,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:50:45,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:50:45,880 INFO L87 Difference]: Start difference. First operand 11031 states and 15484 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 12:50:49,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:50:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:50,806 INFO L93 Difference]: Finished difference Result 32467 states and 45622 transitions. [2024-12-02 12:50:50,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:50:50,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 226 [2024-12-02 12:50:50,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:50,927 INFO L225 Difference]: With dead ends: 32467 [2024-12-02 12:50:50,928 INFO L226 Difference]: Without dead ends: 21893 [2024-12-02 12:50:50,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:50:50,946 INFO L435 NwaCegarLoop]: 2369 mSDtfsCounter, 1220 mSDsluCounter, 5931 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 8300 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:50,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 8300 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 12:50:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21893 states. [2024-12-02 12:50:52,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21893 to 21707. [2024-12-02 12:50:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21707 states, 15745 states have (on average 1.3573197840584312) internal successors, (21371), 16014 states have internal predecessors, (21371), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1526 states have return successors, (4760), 4311 states have call predecessors, (4760), 4432 states have call successors, (4760) [2024-12-02 12:50:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21707 states to 21707 states and 30566 transitions. [2024-12-02 12:50:52,377 INFO L78 Accepts]: Start accepts. Automaton has 21707 states and 30566 transitions. Word has length 226 [2024-12-02 12:50:52,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:52,378 INFO L471 AbstractCegarLoop]: Abstraction has 21707 states and 30566 transitions. [2024-12-02 12:50:52,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 12:50:52,379 INFO L276 IsEmpty]: Start isEmpty. Operand 21707 states and 30566 transitions. [2024-12-02 12:50:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 12:50:52,395 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:52,396 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:52,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:50:52,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 12:50:52,597 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:52,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:52,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1246570089, now seen corresponding path program 1 times [2024-12-02 12:50:52,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:52,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314368622] [2024-12-02 12:50:52,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:52,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:53,870 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 12:50:53,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314368622] [2024-12-02 12:50:53,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314368622] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:50:53,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297926895] [2024-12-02 12:50:53,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:53,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:50:53,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:50:53,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:50:53,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:50:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:54,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 2256 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:50:54,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:50:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 12:50:55,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:50:55,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297926895] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:50:55,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:50:55,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-12-02 12:50:55,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901070263] [2024-12-02 12:50:55,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:50:55,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 12:50:55,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:50:55,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 12:50:55,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:50:55,032 INFO L87 Difference]: Start difference. First operand 21707 states and 30566 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:50:56,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:50:56,069 INFO L93 Difference]: Finished difference Result 43342 states and 61006 transitions. [2024-12-02 12:50:56,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:50:56,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 226 [2024-12-02 12:50:56,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:50:56,187 INFO L225 Difference]: With dead ends: 43342 [2024-12-02 12:50:56,187 INFO L226 Difference]: Without dead ends: 22092 [2024-12-02 12:50:56,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:50:56,240 INFO L435 NwaCegarLoop]: 1764 mSDtfsCounter, 1206 mSDsluCounter, 6465 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:50:56,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 8229 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:50:56,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22092 states. [2024-12-02 12:50:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22092 to 21821. [2024-12-02 12:50:57,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21821 states, 15834 states have (on average 1.3553113553113554) internal successors, (21460), 16112 states have internal predecessors, (21460), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1551 states have return successors, (4787), 4327 states have call predecessors, (4787), 4432 states have call successors, (4787) [2024-12-02 12:50:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21821 states to 21821 states and 30682 transitions. [2024-12-02 12:50:57,905 INFO L78 Accepts]: Start accepts. Automaton has 21821 states and 30682 transitions. Word has length 226 [2024-12-02 12:50:57,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:50:57,905 INFO L471 AbstractCegarLoop]: Abstraction has 21821 states and 30682 transitions. [2024-12-02 12:50:57,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 5 states have internal predecessors, (135), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:50:57,905 INFO L276 IsEmpty]: Start isEmpty. Operand 21821 states and 30682 transitions. [2024-12-02 12:50:57,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 12:50:57,922 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:50:57,922 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:50:57,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 12:50:58,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 12:50:58,123 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:50:58,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:50:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash 470228132, now seen corresponding path program 1 times [2024-12-02 12:50:58,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:50:58,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908787339] [2024-12-02 12:50:58,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:58,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:50:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:58,867 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 12:50:58,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:50:58,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908787339] [2024-12-02 12:50:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908787339] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:50:58,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719654215] [2024-12-02 12:50:58,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:50:58,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:50:58,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:50:58,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:50:58,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:50:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:50:59,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 12:50:59,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:51:00,032 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-12-02 12:51:00,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:51:00,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719654215] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:51:00,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:51:00,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2024-12-02 12:51:00,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138994661] [2024-12-02 12:51:00,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:51:00,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:51:00,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:51:00,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:51:00,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:51:00,034 INFO L87 Difference]: Start difference. First operand 21821 states and 30682 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 12:51:00,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:51:00,928 INFO L93 Difference]: Finished difference Result 43281 states and 60903 transitions. [2024-12-02 12:51:00,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:51:00,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 232 [2024-12-02 12:51:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:51:01,034 INFO L225 Difference]: With dead ends: 43281 [2024-12-02 12:51:01,034 INFO L226 Difference]: Without dead ends: 21885 [2024-12-02 12:51:01,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:51:01,088 INFO L435 NwaCegarLoop]: 1225 mSDtfsCounter, 0 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:51:01,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4892 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:51:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21885 states. [2024-12-02 12:51:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21885 to 21853. [2024-12-02 12:51:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21853 states, 15850 states have (on average 1.3549526813880126) internal successors, (21476), 16144 states have internal predecessors, (21476), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1567 states have return successors, (4851), 4327 states have call predecessors, (4851), 4432 states have call successors, (4851) [2024-12-02 12:51:02,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21853 states to 21853 states and 30762 transitions. [2024-12-02 12:51:02,616 INFO L78 Accepts]: Start accepts. Automaton has 21853 states and 30762 transitions. Word has length 232 [2024-12-02 12:51:02,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:51:02,616 INFO L471 AbstractCegarLoop]: Abstraction has 21853 states and 30762 transitions. [2024-12-02 12:51:02,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 12:51:02,616 INFO L276 IsEmpty]: Start isEmpty. Operand 21853 states and 30762 transitions. [2024-12-02 12:51:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-12-02 12:51:02,638 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:51:02,638 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:51:02,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 12:51:02,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 12:51:02,838 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:51:02,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:51:02,839 INFO L85 PathProgramCache]: Analyzing trace with hash 825769951, now seen corresponding path program 2 times [2024-12-02 12:51:02,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:51:02,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755499127] [2024-12-02 12:51:02,839 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:51:02,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:51:03,286 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:51:03,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:51:03,916 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:51:03,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:51:03,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755499127] [2024-12-02 12:51:03,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755499127] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:51:03,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147189007] [2024-12-02 12:51:03,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:51:03,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:51:03,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:51:03,918 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:51:03,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68c7e2d0-e310-4949-a0d3-4afb8cb5eb49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process